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Contents
- The climate of Brownsville
- The best time to visit Brownsville
- The worst time to visit Brownsville
- Spring weather in Brownsville
- Summer weather in Brownsville
- Autumn weather in Brownsville
- Winter weather in Brownsville
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
A wooden footbridge over a large river with beautiful houses and scenic fields on the other end, located near Brownsville in Texas
The climate of Brownsville
Predominantly, the climate of Brownsville, Texas, USA aligns to the Köppen climate classification Cfa, also known as Humid subtropical, with no dry season. Nestled close to the southerly border of Texas, Brownsville experiences unchanging weather patterns throughout the year.
A year in Brownsville consists of weather conditions marked by fairly consistent relative humidity levels, from 67% to 74%. The highest average temperatures range from 68.9°F (20.5°C) during the cooler months to 93.2°F (34°C) during the peak of summer, while the lowest average temperatures swing between 57°F (13.9°C) and 80.8°F (27.1°C).
Rainfall in Brownsville varies across the year with the most precipitation observed in September at 1.81" (46mm), while February experiences the least rainfall at 0.39" (10mm). The number of days with rainfall is highest in September, totaling 14.4 days, as compared to February and April with only 6.9 and 8.7 days respectively.
Visibility generally remains constant at 6 miles throughout the year. Wind speeds fluctuate from 9.3mph (15km/h) to 12.8mph (20.6km/h), while gusts can reach up to 18.1mph (29.1km/h). Brownsville also witnesses fluctuating pressure levels that range from 29.88" (759mm) to 30.11" (765mm).
A year in Brownsville consists of weather conditions marked by fairly consistent relative humidity levels, from 67% to 74%. The highest average temperatures range from 68.9°F (20.5°C) during the cooler months to 93.2°F (34°C) during the peak of summer, while the lowest average temperatures swing between 57°F (13.9°C) and 80.8°F (27.1°C).
Rainfall in Brownsville varies across the year with the most precipitation observed in September at 1.81" (46mm), while February experiences the least rainfall at 0.39" (10mm). The number of days with rainfall is highest in September, totaling 14.4 days, as compared to February and April with only 6.9 and 8.7 days respectively.
Visibility generally remains constant at 6 miles throughout the year. Wind speeds fluctuate from 9.3mph (15km/h) to 12.8mph (20.6km/h), while gusts can reach up to 18.1mph (29.1km/h). Brownsville also witnesses fluctuating pressure levels that range from 29.88" (759mm) to 30.11" (765mm).
The best time to visit Brownsville
From a weather perspective, the most favorable time to visit would be during the spring months. During this period, visitors can enjoy warm temperatures, lower wind speeds, and the least amount of rainfall. The improved weather comes with a bonus of longer sunshine hours ranging from 7.6 hours to 10.4 hours per day. Average daylight hours are maximized in May, with a 13.4 hour-long day serving as an ideal setting for outdoor activities.
The worst time to visit Brownsville
Conversely, September could be considered the most challenging period to visit Brownsville due to its highest rainfall of 1.81" (46mm) across 14.4 days. Similarly, August's humidity surges to its highest point of 80.8%, creating potentially oppressive conditions. Moreover, the highest average temperature of 93.2°F (34°C) is observed in August, coupling hot weather with high humidity.
Spring weather in Brownsville
Spring in Brownsville is observed from March to May, during which temperatures fluctuate between 65.7°F (18.7°C) to 86.5°F (30.3°C). Rainfall is anticipated to be between 0.39 to 0.87" (22mm) during this season. Peak daylight hours stretch up to 13.4 hours, supporting extended outdoor activities. Average wind speeds range between 12.6mph (20.3km/h) to 12.8mph (20.6km/h), of which gusts can reach up to 18mph (29km/h).
Summer weather in Brownsville
Witnessing some of the highest temperatures of the year, summer in Brownsville commences in June and concludes in August. Average temperatures soar from 90.5°F (32.5°C) to 93.2°F (34°C) during these months. Rainfall volume ranges from 0.75" (19mm) to 1.34" (34mm). Sunshine hours are at a high during this season, averaging between 10.9 to 11.2 hours per day, whilst daylight can last up to 13.7 hours.
Autumn weather in Brownsville
From September to November, Brownsville experiences Autumn. The season begins with the highest rainfall volume of the year at 1.81" (46mm) in September, which gradually diminishes to 0.83" (21mm) by November. Average temperatures fall from 89.4°F (31.9°C) to 76.3°F (24.6°C), while daylight hours decrease from 12.3 to 10.9 hours.
Winter weather in Brownsville
Winter settles into Brownsville from December through February. Despite being the coldest season, average high temperatures remain mild, rising from 68.9°F (20.5°C) to 72.9°F (22.7°C). Average low temperatures fluctuate between 59.9°F (15.5°C) and 61°F (16.1°C). Rainfall is at its least during winter, with recorded averages falling between 0.63" (16mm) to 0.87" (22mm). The brightness of the sun lasts 6.1 hours a day in December, reaching up to almost 7 hours by February. With less than 11.3 hours of daylight during Winter, it is the season with the shortest days. Lastly, the average wind speed ranges from 11.2mph (18km/h) to 12.2mph (19.6km/h) with gusts reaching up to 17.7mph (28.5km/h).
Weather in January
January in Brownsville, Texas, starts on a relatively mild note, frequently covered by partly cloudy skies. The early year winds blow at 11.2mph (18km/h), ushering in a fair precipitation. The visibility holds steady at 6 miles, creating a good balance between daylight and average cloud percentage. Weather in January »
Weather in February
As Brownsville moves into February, the temperatures take a slight increase, bringing a hint of the spring warmth due soon. The daylight also increases, which pairs well with the current temperatures. Amidst this early warmth, rainfall drops to a mere 0.39" (10mm), signalling the lowest rain level of the year. Weather in February »
Weather in March
March in Brownsville is witness to a consistent increase of daylight to 12 hours. The strengthening sun noticeably boosts the UV index to 6, indicating the subtle transition towards the brighter half of the year. Temperatures in March lie between 65.7°F (18.7°C) and 77.2°F (25.1°C), creating a comfortable atmosphere for the locals. Weather in March »
Weather in April
As April dawns in Brownsville, daylight duration stretches to nearly 13 hours. The weather is stabilizing with less cloud cover and steady pressures. It is during this time that winds blow at a rate of 12.8mph (20.6km/h), the year's highest, adding a tinge of coolness to the warming atmosphere. Weather in April »
Weather in May
With the advent of May in Brownsville, the city starts experiencing true summer vibes. The increase in daylight pairs well with the rising temperatures, resulting in longer, brighter days. The tropic warmth elevates the temperatures to peak at 86.5°F (30.3°C), signalling the onset of the hot season. Weather in May »
Weather in June
June in Brownsville, Texas, is right in the heart of summer with the weather characteristics being perfectly aligned to the season's persona. Bright sunshine dominates the day for almost 14 hours, defying the slightly increased cloud cover to keep the skies clear enough. Weather in June »
Weather in July
As July arrives in Brownsville, the city experiences its highest temperatures with a typical scale stretching from 79.5°F (26.4°C) to 92.1°F (33.4°C). The average number of daylight hours are steady, but the sunshine hours experience a slight dip. Weather in July »
Weather in August
August in Brownsville exhibits all the characteristics of a hot summer month, with an average high temperature soaring up to 93.2°F (34°C). The city witnesses almost 13 hours of daylight, ensuring that the summertime festivities continue in full swing. Weather in August »
Weather in September
In Brownsville, September brings a gradual respite from summer heat with temperatures starting their return journey towards annual mean values. Rainfall picks up pace, accumulating to 1.81" (46mm) - the highest in the year, making the weather a mix of wet and hot sensation. Weather in September »
Weather in October
October in Brownsville kicks off the fall season, observing the decline of the usual summer characteristics. A noticeable drop in temperature instigates crisp mornings and mild afternoons. The pressure starts rising, creating a tangible shift in the atmosphere. Weather in October »
Weather in November
November introduces Brownsville to the early signs of winter. Despite the drop in temperatures, which hover between 65.3°F (18.5°C) to 76.3°F (24.6°C), the weather remains charming for outdoor activities. The declining daylight hours and shortened sunshine hours signify the shortening of day length. Weather in November »
Weather in December
December marks the beginning of the winter season in Brownsville. The weather in this month is characterized by cooler temperatures, which fluctuate between 59.9°F (15.5°C) and 70.7°F (21.5°C). The city observes its darkest days with the shortest daylight hours. Weather in December »
Updated: Aug 3, 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 Brownsville, January registers the lowest temperatures, averaging 68.9°F (20.5°C) at the peak and 57°F (13.9°C) at the lowest.
How much does it rain?
Throughout the year, there are 114 rainfall days, and 11.22" (285mm) of precipitation is accumulated.
What is the most humid month?
February, May and December, with an average relative humidity of 74%, are most humid months.
What is the driest month?
The months with the least rainfall are February and April Rain falls for 6.9 days and accumulates 0.39" (10mm) of rain.
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.
When are the longest days?
The month with the longest days in Brownsville is June, with an average of 13h and 42min of daylight.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.2h of sunshine.
When is the highest UV index?
July is the month with the highest UV index in Brownsville, with an average maximum UV index of 8.
What are the warmest months?
August, noted for its average high-temperature of 93.2°F (34°C) and an average low-temperature of 80.8°F (27.1°C), is considered the warmest month.
What is the least humid month?
The least humid month is August, with an average relative humidity of 67%.
What is the rainiest month?
September is the month with the most rainfall. Rain falls for 14.4 days and accumulates 1.81" (46mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year in Brownsville, with an average of 10h and 36min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 4.9h of sunshine.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 4.
Average temperature
Brownsville, TX
The warmest month (with the highest average high temperature) is August (93.2°F).
The month with the lowest average high temperature is January (68.9°F).
The month with the highest average low temperature is August (80.8°F).
The coldest month (with the lowest average low temperature) is January (57°F).
Average pressure
Brownsville, TX
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed
Brownsville, TX
- Average wind speed in January:
11.2mph - Average wind speed in February:
12.2mph - Average wind speed in March:
12.8mph - Average wind speed in April:
12.8mph - Average wind speed in May:
12.6mph - Average wind speed in June:
11.3mph
- Average wind speed in July:
11.7mph - Average wind speed in August:
10.6mph - Average wind speed in September:
9.3mph - Average wind speed in October:
10.2mph - Average wind speed in November:
11mph - Average wind speed in December:
11.4mph
The windiest months (with the highest average wind speed) are March and April (12.8mph).
The calmest month (with the lowest average wind speed) is September (9.3mph).
Average humidity
Brownsville, TX
The months with the highest relative humidity are February, May and December (74%).
The month with the lowest relative humidity is August (67%).
Average rainfall
Brownsville, TX
- Average rainfall in January:
0.87" - Average rainfall in February:
0.39" - Average rainfall in March:
0.59" - Average rainfall in April:
0.39" - Average rainfall in May:
0.87" - Average rainfall in June:
1.22"
- Average rainfall in July:
1.34" - Average rainfall in August:
0.75" - Average rainfall in September:
1.81" - Average rainfall in October:
1.54" - Average rainfall in November:
0.83" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is September (1.81").
The driest months (with the least rainfall) are February and April (0.39").
Average rainfall days
Brownsville, TX
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
8.7 days - Average rainfall days in May:
8.8 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
7.9 days - Average rainfall days in August:
9 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is September (14.4 days).
The month with the least rainy days is February (6.9 days).
Average daylight / Average sunshine
Brownsville, TX
- Average daylight in January:
10h and 4min - Average daylight in February:
11h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 2min - Average daylight in June:
13h and 4min
- Average daylight in July:
13h and 4min - Average daylight in August:
13h and 0min - 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 4min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
6h and 5min - Average sunshine in March:
7h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
7h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Brownsville, TX
- Average sunshine days in January:
18.4 days - Average sunshine days in February:
18 days - Average sunshine days in March:
21.1 days - Average sunshine days in April:
20.4 days - Average sunshine days in May:
19.9 days - Average sunshine days in June:
16.9 days
- Average sunshine days in July:
20.2 days - Average sunshine days in August:
18.6 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
20.3 days
The month with the most sunshine days is March (21.1 days).
The month with the least sunshine days is September (12.8 days).
Average UV index
Brownsville, TX
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover
Brownsville, TX
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
Brownsville, 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).
Brownsville, Texas, USA
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