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Contents
- The climate of Vega Alta
- The best time to visit Vega Alta
- The worst time to visit Vega Alta
- Spring weather in Vega Alta
- Summer weather in Vega Alta
- Autumn weather in Vega Alta
- Winter weather in Vega Alta
- 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
The climate of Vega Alta
Identified under the Köppen climate classification as 'Am', Vega Alta, a municipality in Puerto Rico, USA, experiences a tropical monsoon climate. This region is characterized by relatively high temperatures and substantial rainfall throughout the year.
The fluctuations in temperature are relatively small from month to month. The average high temperature ranges from 79.9°F (26.6°C) in January to 85.5°F (29.7°C) in August. The average low temperature in Vega Alta varies from 73°F (22.8°C) in March to 78.4°F (25.8°C) between August and October. An average relative humidity of 78% to 79% is consistent throughout the year, signaling a high moisture content in the atmosphere.
When it comes to rainfall, Vega Alta sees changes in monthly values. November emerges as the wettest month with an average rainfall of 3.82" (97mm) while February is the driest, with rainfall averaging at 0.94" (24mm). The region experiences a number of days with rainfall ranging from 14.2 days in January and February to 24 days in October.
Unique in its behavior, the region sees a high UV index of 7 from May to November, which reduces to a 6 in the other months. Wind speeds also see some fluctuation, soaring from 8.4mph (13.5km/h) in May to 10mph (16.1km/h) in July. Highest gusts of wind are observed in July at 14.4mph (23.2km/h), which again get reduced to 10.1mph (16.3km/h) by October.
The fluctuations in temperature are relatively small from month to month. The average high temperature ranges from 79.9°F (26.6°C) in January to 85.5°F (29.7°C) in August. The average low temperature in Vega Alta varies from 73°F (22.8°C) in March to 78.4°F (25.8°C) between August and October. An average relative humidity of 78% to 79% is consistent throughout the year, signaling a high moisture content in the atmosphere.
When it comes to rainfall, Vega Alta sees changes in monthly values. November emerges as the wettest month with an average rainfall of 3.82" (97mm) while February is the driest, with rainfall averaging at 0.94" (24mm). The region experiences a number of days with rainfall ranging from 14.2 days in January and February to 24 days in October.
Unique in its behavior, the region sees a high UV index of 7 from May to November, which reduces to a 6 in the other months. Wind speeds also see some fluctuation, soaring from 8.4mph (13.5km/h) in May to 10mph (16.1km/h) in July. Highest gusts of wind are observed in July at 14.4mph (23.2km/h), which again get reduced to 10.1mph (16.3km/h) by October.
The best time to visit Vega Alta
Weather-wise, the best time for tourists planning to visit Vega Alta would be the early months of the year, from January to March. During this period, the region witnesses slightly lower temperatures, moderate rainfall, and relatively fewer days of precipitation. In addition, wind speeds are fairly gentle, ranging between 9.1mph (14.6km/h) to 8.9mph (14.3km/h), promising tranquil weather conditions for sightseeing and outdoor activities.
The worst time to visit Vega Alta
The period from August to November may be considered the least desirable time of the year to visit Vega Alta. This period marks the highest levels of rainfall along with a higher number of rainy days. Moreover, the UV index is at its peak of 7, necessitating extra precautions against harmful ultraviolet radiation.
Spring weather in Vega Alta
The spring weather in Vega Alta, from March to May, witnesses a progressive increase in temperatures with highs ranging from 80.2°F (26.8°C) to 82.6°F (28.1°C) and lows from 73°F (22.8°C) to 75.7°F (24.3°C). The weather this time of the year turns somewhat wetter, with rainfall steadily increasing from 2.01" (51mm) in March to 3.43" (87mm) in May. The number of rainy days during spring escalates from 17 in March to 22.7 in May, with an accompanying uplift in the UV index to 7 by May.
Summer weather in Vega Alta
Summer in Vega Alta, from June to August, presents the region with increasing heat, with average highs climbing up from 84.2°F (29°C) to 85.5°F (29.7°C) and lows rising from 77.5°F (25.3°C) to 78.4°F (25.8°C). The rainfall levels also soar, peaking at 2.44" (62mm) in August. With an average UV index of 7, precautions against the sun should be a priority.
Autumn weather in Vega Alta
The onset of autumn in Vega Alta is marked by slight moderation in temperatures with highs reducing from 85.1°F (29.5°C) in September to 83.1°F (28.4°C) by November. The average low temperatures remain static at 78.4°F (25.8°C) in September and October before descending to 76.6°F (24.8°C) in November. The region gets a significant amount of precipitation during this period, with rainfall escalating from 3.62" (92mm) in September to a high of 3.82" (97mm) in October.
Winter weather in Vega Alta
Winter extends from December to February in Vega Alta, with temperatures falling slightly but still remaining comfortably warm. The high temperature reduces to 81°F (27.2°C) in December, then slightly dips to 79.9°F (26.6°C) in January and resumes at 80.2°F (26.8°C) in February. The low temperatures range from 75.2°F (24°C) to 73.6°F (23.1°C), providing a warm winter season. The winter months also offer a respite from heavy rainfall, with December registering 1.61" (41mm) of rain, going down to 0.94" (24mm) in February.
Weather in January
January in Vega Alta, Puerto Rico, sees moderate temperatures and relatively high humidity. The temperature fluctuation is small, making conditions comfortable throughout the day and night. This month experiences more rainfall days compared to February, contributing to its characteristically damp weather. Weather in January »
Weather in February
February reports a slight rise in average temperatures compared to January in Vega Alta. It is also notably drier, with lower rainfall recorded in inches and fewer rainfall days. Sunshine hours show a marginal increase hinting at brighter days ahead. Weather in February »
Weather in March
The weather in Vega Alta during March continues to change gradually, bringing a subtle decrease in humidity compared to the previous month. March records 2.01" (51mm) of rainfall, showing a significant increase from February's weather conditions. Weather in March »
Weather in April
In Vega Alta, April brings warmer conditions with temperatures higher than the previous month. It brings the highest rainfall in inches compared to the other months, contributing to a considerable increase in humidity. As the month progresses, daylight extends to over 12 hours a day, marking longer days. Weather in April »
Weather in May
May witnesses the highest temperature of 82.6°F (28.1°C) and consequently, a rise in the relative humidity of the area. Vega Alta experiences an increase in daylight hours, reaching 13 hours per day. Cloud cover experiences a marginal rise compared to April providing some respite from the rising temperatures. Weather in May »
Weather in June
June establishes itself as the hottest month in Vega Alta with a soaring high temperature of 84.2°F (29°C). The uniform visibility and daylight just above 13 hours ensure a consistent and predictable weather pattern throughout the month. Weather in June »
Weather in July
In Vega Alta, July sustains the high-temperature trend from June, with a minor increase in the low temperature. Despite the hot weather, July brings fewer sunshine hours compared to the preceding month. High relative humidity remains consistent during this period making the heat more palpable. Weather in July »
Weather in August
August surpasses all preceding months with the highest recorded temperature of 85.5°F (29.7°C) in Vega Alta. It sees a decrease in sunshine hours and marginally fewer daylight hours as the summer gradually winds down. There's an increase in rainfall days, which couples with the high temperatures to create a humid climate. Weather in August »
Weather in September
In Vega Alta, September experiences a slight cooling down from the peak temperatures of August but remains notably hotter than the following October. This month witnesses the highest rainfall in inches signifying the onset of the wet season. Weather in September »
Weather in October
October brings further cooling in Vega Alta, with a decrease in both high and low temperatures compared to September. Relative humidity registers a slight increase, with October experiencing more cloudy days compared to September. Weather in October »
Weather in November
In Vega Alta, November transitions to milder conditions with a noticeable dip in temperature from October. Recognizably, the decrease in sunshine hours by about 1.5 hours, contributes to shorter days. Corresponding to the seasonal change, the UV index also drops. Weather in November »
Weather in December
December marks the cooling off period of Vega Alta with a considerable decrease in the high temperature compared to November. With a UV index of 6, it is one of the lowest readings in a year. As the year winds down, daylight hours decrease to create shorter days. Weather in December »
Updated: Jul 8, 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 part of the year is the coldest?
The lowest temperatures are recorded in January, with averages reaching a high of 79.9°F (26.6°C) and a low of 73.6°F (23.1°C).
How much does it rain?
In Vega Alta, during the entire year, the rain falls for 223.5 days and collects up to 27.95" (710mm) of precipitation.
When is the lowest UV index?
January through April and December, with an average maximum UV index of 6, are months with the lowest UV index.
What is the driest month?
February is the month with the least rainfall. Rain falls for 14.2 days and accumulates 0.94" (24mm) of precipitation.
What is the least humid month?
With an average relative humidity of 76%, March is the least humid month in Vega Alta.
What are the most humid months?
The months with the highest humidity are May through July and November, with an average relative humidity of 79%.
What are the months with the most sunshine?
The months with the most sunshine are May and June, with an average of 10.8h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are May through November, with an average maximum UV index of 7.
When are the longest days?
June has the longest days of the year, with an average of 13h and 12min of daylight.
What month is the hottest?
The warmest temperatures occur during August, when averages reach a peak of 85.5°F (29.7°C) and a low of 78.4°F (25.8°C).
What is the rainiest month?
October is the month with the most rainfall. Rain falls for 24 days and accumulates 3.82" (97mm) of precipitation.
What is the month with the least sunshine?
November has the least sunshine of the year, with an average of 6.7h of sunshine.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 11h and 0min of daylight.
Is there Daylight Saving Time (DST) in Vega Alta?
Vega Alta, Puerto Rico, does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
Average temperature
Vega Alta, PR
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (79.9°F).
The months with the highest average low temperature are August, September and October (78.4°F).
The coldest month (with the lowest average low temperature) is March (73°F).
Average pressure
Vega Alta, PR
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.9"Hg - Average pressure in November:
29.91"Hg - Average pressure in December:
29.98"Hg
The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed
Vega Alta, PR
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.4mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.7mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
10mph - Average wind speed in August:
9.6mph - Average wind speed in September:
7.6mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is July (10mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity
Vega Alta, PR
The months with the highest relative humidity are May, June, July and November (79%).
The month with the lowest relative humidity is March (76%).
Average rainfall
Vega Alta, PR
- Average rainfall in January:
1.26" - Average rainfall in February:
0.94" - Average rainfall in March:
2.01" - Average rainfall in April:
1.81" - Average rainfall in May:
3.43" - Average rainfall in June:
1.77"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.44" - Average rainfall in September:
3.62" - Average rainfall in October:
3.82" - Average rainfall in November:
3.23" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is October (3.82").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days
Vega Alta, PR
- Average rainfall days in January:
14.2 days - Average rainfall days in February:
14.2 days - Average rainfall days in March:
17 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
22.7 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
19.7 days - Average rainfall days in September:
20.4 days - Average rainfall days in October:
24 days - Average rainfall days in November:
22.9 days - Average rainfall days in December:
17.5 days
The month with the highest number of rainy days is October (24 days).
The months with the least rainy days are January and February (14.2 days).
Average daylight / Average sunshine
Vega Alta, PR
- Average daylight in January:
11h and 1min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 4min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 1min
- Average daylight in July:
13h and 1min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 4min - Average daylight in November:
11h and 2min - Average daylight in December:
11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January:
8h and 5min - Average sunshine in February:
8h and 5min - Average sunshine in March:
8h and 3min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 5min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
8h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 5min
The months with the most sunshine are May and June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days
Vega Alta, PR
- Average sunshine days in January:
9.8 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
6.6 days - Average sunshine days in May:
5 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
4.9 days - Average sunshine days in September:
5.3 days - Average sunshine days in October:
3.5 days - Average sunshine days in November:
3.5 days - Average sunshine days in December:
7.5 days
The month with the most sunshine days is January (9.8 days).
The months with the least sunshine days are October and November (3.5 days).
Average UV index
Vega Alta, PR
The months with the highest UV index are May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April and December (UV index 6).
Average cloud cover
Vega Alta, PR
The months with the most cloud cover are May, July and November (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility
Vega Alta, PR
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).
Vega Alta, Puerto Rico, USA
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