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Contents
- The climate of Port Aransas
- The best time to visit Port Aransas
- The worst time to visit Port Aransas
- Spring weather in Port Aransas
- Summer weather in Port Aransas
- Autumn weather in Port Aransas
- Winter weather in Port Aransas
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Port Aransas
Positioned along the coastline of Texas, Port Aransas falls within the Cfa climate zone, according to the Köppen climate classification, characterizing it as a subtropical region where no dry season can be anticipated. The climate exhibits consistent temperature variations and rainfall throughout the year, contributing to its humid subtropical label.
Outdoor conditions typically feature higher temperatures, prominently in the warmer months, from June to September, as the mercury often reads between 84.6°F (29.2°C) in June and 86.7°F (30.4°C) in August. However, temperature fluctuations can be expected as the colder monthly periods, predominantly around December to February, record a drop to around 57.6°F (14.2°C) in February. The town annually experiences relative humidity percentages in the high seventies, with May witnessing the highest humidity at 81%.
Just as rainfall follows a particular pattern, the rainy days in a month also show a range from 7.8 days in February to 17.8 days in September. From this repetitive cycle of weather parameters, one could conclude June, the first summer month, as the instigator of considerable rainfall, reaching a peak at 1.77" (45mm), swiftly followed by a slump to 1.3" (33mm) in July, yet witnessing a resurgence to 2.99" (76mm) in September.
A comparative scarcity in snowfall becomes evident, with the maximum recorded value of 0.04" (1mm) in February and snow gracing the region predominantly during that month; conversely, other months record no trace of snowfall.
Outdoor conditions typically feature higher temperatures, prominently in the warmer months, from June to September, as the mercury often reads between 84.6°F (29.2°C) in June and 86.7°F (30.4°C) in August. However, temperature fluctuations can be expected as the colder monthly periods, predominantly around December to February, record a drop to around 57.6°F (14.2°C) in February. The town annually experiences relative humidity percentages in the high seventies, with May witnessing the highest humidity at 81%.
Just as rainfall follows a particular pattern, the rainy days in a month also show a range from 7.8 days in February to 17.8 days in September. From this repetitive cycle of weather parameters, one could conclude June, the first summer month, as the instigator of considerable rainfall, reaching a peak at 1.77" (45mm), swiftly followed by a slump to 1.3" (33mm) in July, yet witnessing a resurgence to 2.99" (76mm) in September.
A comparative scarcity in snowfall becomes evident, with the maximum recorded value of 0.04" (1mm) in February and snow gracing the region predominantly during that month; conversely, other months record no trace of snowfall.
The best time to visit Port Aransas
Those favoring bright sunny days might find the summer months from June to August, with an average of 13.7 daylight hours and a welcoming sea temperature ranging from 83.8°F (28.8°C) to 86.1°F (30.1°C), as the most enjoyable time to visit Port Aransas. The summer period assures the highest number of sunshine hours, reaching a maximum of 11.1 hours in July and an intensity of the UV index oscillating around 7.
The worst time to visit Port Aransas
Visitors searching for less wet and moisture-filled weather should weigh avoiding the months from June to September. These periods record the highest rainfall, a surge in rainy days, and relative humidity levels peaking at 81%. Although the sunshine hours remain reasonably high, the chances of precipitation may overshadow the expectation of a sunny day out.
Spring weather in Port Aransas
While the springtime in Port Aransas spans from March to May, the atmosphere begins to warm up with the transition from winter, staging a range in recorded temperatures from 63.5°F (17.5°C) in March to 79.3°F (26.3°C) in May. This incremental pattern observed in the temperature also applies to the sea temperature, which ascends from 65.2°F (18.4°C) to 77.9°F (25.5°C). The daily sunshine duration steps up from the 7.3 hours of March to 10.1 hours in May, while the number of rainy days exhibit minimal change.
Summer weather in Port Aransas
The summer season witnesses peak temperatures, with readings swelling from 84.6°F (29.2°C) in June to 86.7°F (30.4°C) by August. The highest sea temperatures of the year are enjoyed during this portion of the year, reaching a delightful 86.1°F (30.1°C) in August. The general span of daylight hours touches its zenith, sustaining steady values of 13.7 hours in July and 13.1 in August.
Autumn weather in Port Aransas
Autumn, stretching from September to November, experiences a gradual diminution in suave temperatures from 84.9°F (29.4°C) in September to a much cooler 71.1°F (21.7°C) in November. Correspondingly the sea temperature cools, from 84.6°F (29.2°C) at the start of the season to 73°F (22.8°C) in November. Rainfall manifests a notable divergence with a considerable volume of 2.99" (76mm) in September, but the following months see a reduction to 1.81" (46mm) and 0.98" (25mm) in October and November respectively.
Winter weather in Port Aransas
Winter in Port Aransas brings a dip in conditions, with temperatures ranging from 65.1°F (18.4°C) in December to 54.9°F (12.7°C) in February. Sea temperature also descends, reaching the year's minimum of 61.3°F (16.3°C) in February. Rainfall remains below 0.98" (25mm), and the average sunshine duration lessens, from 5.6 hours in December to 4.8 hours in February.
Weather in January
Beginning the year, the Port Aransas weather in January sees high temperatures around 62.6°F (17°C) and low temperatures around 54.9°F (12.7°C). Acknowledging the shifts in seasons, this month experiences a transition from the colder months of the year towards the upcoming spring. Weather in January »
Weather in February
Distinctly warmer than January, the weather in February in Port Aransas, Texas, sees high temperatures reaching 64.8°F (18.2°C). In this month, the winter frost starts to dissipate making outdoor activities more pleasant. The sea temperature begins to rise which heralds the incoming spring season. Weather in February »
Weather in March
March is characterized by a significant warming trend, with the highest temperatures reaching 68.9°F (20.5°C). It signifies the much-awaited arrival of spring leading to blooming landscapes and milder weather conditions. With a higher UV index than the previous months, wearing sun protection becomes more necessary. Weather in March »
Weather in April
Port Aransas weather in April internationalizes summer with the highest temperature reaching up to 74.8°F (23.8°C). This month marks a significant change in atmosphere benefiting from longer days and increased sunshine. April is characterized by comfortable temperatures making outdoor activities more enjoyable. Weather in April »
Weather in May
May experiences a transition towards the hotter season, with the temperature reaching as high as 79.3°F (26.3°C). As spring progresses towards summer, daylight extends allowing residents and tourists to enjoy longer days. Residents predictably anticipate summer as temperatures continually rise, setting a lively atmosphere around. Weather in May »
Weather in June
A distinctive shift in Port Aransas weather is observable in June with the highest temperature increasing by nearly 5 degrees from May to 84.6°F (29.2°C). The city undoubtedly gears up for the peak of summer with the longest daylight hours. Weather in June »
Weather in July
Peak summer is in full swing in July, and Port Aransas feels the increase with maximum temperatures reaching 85.6°F (29.8°C). Despite the high heat, the coastal city remains a favourite spot for summer vacationers due to the cooling sea breeze. Weather in July »
Weather in August
August, being the heart of summer in Port Aransas, hits the highest temperature recorded in the year at 86.7°F (30.4°C). With the sea temperature concurrently at its highest, surfing and other water activities claim popularity during this period. Weather in August »
Weather in September
The weather in Port Aransas in September shifts towards cooler fall-like conditions, although the highest temperature still remains at a warm 84.9°F (29.4°C). On the cusp of the transitioning season yet still enjoying summer remnants, beach outings and other outdoor activities remain prevalent among locals and tourists. Weather in September »
Weather in October
October witnesses a moderate dip in temperature, still maintaining a pleasant high of 79.5°F (26.4°C) which is ideal for outdoor enthusiasts in Port Aransas. This month marks the start of fall in Texas, characterized by colorful leaves, pumpkin spice, and comfortable weather. Weather in October »
Weather in November
Entering the late fall, November in Port Aransas experiences a drop in average temperature to 71.1°F (21.7°C), a significant shift from the warmer October. As the city prepares for the winter season, daylight hours shorten and the sun strikes at a lower angle. Weather in November »
Weather in December
December brings the onset of winter in Port Aransas and the whole of Texas, dropping the average temperature further to 65.1°F (18.4°C). This period is all about holiday cheer, bright decorations, and festive events taking place across the city. Weather in December »
Updated: Aug 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Port Aransas?
January, with average temperatures reaching a high of 62.6°F (17°C) and a low of 54.9°F (12.7°C), is the coldest month.
How much does it rain?
Throughout the year, there are 126.5 rainfall days, and 14.57" (370mm) of precipitation is accumulated.
When it does not snow?
January, March through December are months without snowfall.
How much does it snow?
In Port Aransas, during the entire year, snow aggregates up to 0.04" (1mm).
What are the months with the lowest UV index?
The months with the lowest UV index in Port Aransas are January and December, with an average maximum UV index of 4.
What is the driest month?
February and March are months with the least rain when the rain falls for 7.8 days and typically aggregates up to 0.51" (13mm) of rain.
When does it snow?
The only month with snowfall is February.
When does it snow the most in Port Aransas?
The month with the most snowfall in Port Aransas is February, when snow falls for 0.2 days and typically aggregates up to 0.04" (1mm) of snow.
What is the month with the coldest ocean?
The month with the coldest seawater is February, with an average ocean temperature of 61.3°F (16.3°C).
What is the most humid month?
The months with the highest humidity are March and May, with an average relative humidity of 81%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the month with the highest UV index?
May through September, with an average maximum UV index of 7, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 13h and 54min of daylight.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.1h of sunshine.
What time of the year is the hottest in Port Aransas?
The warmest month is August, with an average high-temperature of 86.7°F (30.4°C) and an average low-temperature of 82°F (27.8°C).
What month is the ocean warmest?
The month with the warmest seawater is August, with an average ocean temperature of 86.2°F (30.1°C).
What is the rainiest month?
September is the month with the most rainfall. Rain falls for 17.8 days and accumulates 2.99" (76mm) of precipitation.
What is the least humid month?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 24min of daylight.
What is the month with the least sunshine?
With an average of 4.8h of sunshine, December has the least sunshine of the year.
Average temperature
Port Aransas, TX
The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (62.6°F).
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (54.9°F).
Average pressure
Port Aransas, TX
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Port Aransas, TX
- Average wind speed in January:
12.5mph - Average wind speed in February:
13mph - Average wind speed in March:
13.4mph - Average wind speed in April:
14.2mph - Average wind speed in May:
14.2mph - Average wind speed in June:
13.1mph
- Average wind speed in July:
12.8mph - Average wind speed in August:
11.8mph - Average wind speed in September:
11.3mph - Average wind speed in October:
12.5mph - Average wind speed in November:
12.7mph - Average wind speed in December:
12.5mph
The windiest months (with the highest average wind speed) are April and May (14.2mph).
The calmest month (with the lowest average wind speed) is September (11.3mph).
Average humidity
Port Aransas, TX
The months with the highest relative humidity are March and May (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Port Aransas, TX
- Average rainfall in January:
0.71" - Average rainfall in February:
0.51" - Average rainfall in March:
0.51" - Average rainfall in April:
0.79" - Average rainfall in May:
0.98" - Average rainfall in June:
1.77"
- Average rainfall in July:
1.3" - Average rainfall in August:
1.22" - Average rainfall in September:
2.99" - Average rainfall in October:
1.81" - Average rainfall in November:
0.98" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is September (2.99").
The driest months (with the least rainfall) are February and March (0.51").
Average rainfall days
Port Aransas, TX
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
9.7 days - Average rainfall days in May:
9.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
10 days - Average rainfall days in August:
11 days - Average rainfall days in September:
17.8 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall
Port Aransas, TX
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Port Aransas, TX
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.2 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature
Port Aransas, TX
The best month for swimming (with the highest average sea temperature) is August (86.1°F).
The coldest month (with the lowest average sea temperature) is February (61.3°F).
Average daylight / Average sunshine
Port Aransas, TX
- Average daylight in January:
10h and 4min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 3min - Average daylight in June:
13h and 5min
- Average daylight in July:
13h and 4min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 3min - Average daylight in November:
10h and 5min - Average daylight in December:
10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 2min - Average sunshine in March:
7h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
10h and 1min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
7h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days
Port Aransas, TX
- Average sunshine days in January:
20.2 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
20.5 days - Average sunshine days in April:
17.6 days - Average sunshine days in May:
19 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
19.4 days - Average sunshine days in August:
17.5 days - Average sunshine days in September:
10.3 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
16.3 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is March (20.5 days).
The month with the least sunshine days is September (10.3 days).
Average UV index
Port Aransas, TX
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover
Port Aransas, TX
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Port Aransas, TX
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Port Aransas, Texas, USA
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