Climate and monthly weather forecastVega Baja, PR
Climate and monthly weather forecast
The climate of Vega Baja
Vega Baja, located in Puerto Rico, USA, is characterized by a Tropical Monsoon climate, also known as the Am category in the Köppen climate classification. This climate classification is typical for regions near the Tropics of Cancer and Capricorn. The town experiences high temperatures year-round, with minimal variance. This subtropical climate is coupled with consistent precipitation throughout the year.During the year, average high temperatures oscillate between 80.2°F (26.8°C) in March and 85.6°F (29.8°C) in August, showcasing mild fluctuations. Average low temperatures exhibit similar patterns with a variance between 72.5°F (22.5°C) in March and 78.4°F (25.8°C) in August. Relative humidity in Vega Baja is consistent throughout the year, fluctuating between a minimum value of 77% in February, March, April, and August, to a maximum value of 79% in May, June, November, and December.
The town's rainy period spans the entire year, beginning in January with rainfall of 1.06" (27mm) and peaking in May at 4.02" (102mm). Sunshine hours fluctuate a bit more throughout the year, peaking at 13.2 hours in June and dropping to 11 hours in December. Wind speeds in Vega Baja display a slight variation throughout the year. The lightest breezes are experienced in October at an average of 6.8mph (10.9km/h), while the strongest winds typically occur in July at an average speed of 9.9mph (15.9km/h).
The best time to visit Vega Baja
For visitors who prefer pleasant weather with the least rainfall, January and February offer the best combination. During these months, Vega Baja records the lowest rainfall of the year, 1.06" (27mm) and 0.91" (23mm) respectively. Additionally, average wind speeds are moderate, ranging from 9.1mph (14.6km/h) to 9.3mph (15km/h). Temperatures during this period are among the coolest of the year, with averages between 80.4°F (26.9°C) and 80.6°F (27°C) for the high and 72.9°F (22.7°C) for the low, providing ideal conditions for outdoor activities.The worst time to visit Vega Baja
May, on the other hand, is perhaps the least favorable period for visitors. It experiences the most rainfall, 4.02" (102mm), coupled with the highest relative humidity, 79%. Incidentally, however, it is during this month that the average amount of daily sunlight is highest, at 13 hours. The temperature does not drop significantly, maintaining a high of 83.1°F (28.4°C) and a low of 75.6°F (24.2°C). Hence, visitors who do not enjoy high humidity and rainfall might want to avoid traveling during the month of May.Spring weather in Vega Baja
As Vega Baja is located in the tropical region, it does not experience a spring season in the conventional sense. However, the months of March, April, and May can be loosely referred to as the spring period. During these months, Vega Baja experiences an uptick in rainfall from 2.17" (55mm) in March to 4.02" (102mm) in May. The temperatures remain relatively high, from 80.2°F (26.8°C) to 83.1°F (28.4°C), while humidity stays mostly consistent at 77% to 79%.Summer weather in Vega Baja
The summer season, comprising June, July, and August, is consistently hot in Vega Baja. Peak temperatures are experienced during these months, ranging from 84.6°F (29.2°C) in June to 85.6°F (29.8°C) in August. Rainfall during this period ranges from 2.13" (54mm) in June to 2.68" (68mm) in August. Consistent with the region's Tropical Monsoon climate, the relative humidity remains high throughout the summer, at 79%.Autumn weather in Vega Baja
The autumn months of September, October, and November witness a slight decrease in temperatures, from 85.5°F (29.7°C) to 82.8°F (28.2°C), yet they remain relatively high. Rainfall during these months increases from 3.94" (100mm) in September to a peak of 3.46" (88mm) in October, then decrease to 2.76" (70mm) in November. Humidity remains consistently high at 79%.Winter weather in Vega Baja
Winter, spanning December, January, and February, is characterized by a decrease in temperatures with averages ranging between 80.4°F (26.9°C) to 81.3°F (27.4°C). Rainfall is minimal in these months, from 1.38" (35mm) in December to 1.06" (27mm) in January, then slightly increasing to 0.91" (23mm) in February. December experiences the least daylight hours of the year at 11, contrastingly January and February experience more daylight hours. The relative humidity during the winter months stays between 78% to 79%, maintaining the typical high humidity of the Tropical Monsoon climate.Weather in January
Entering the new year, Vega Baja sees a significant weather transformation from the chillier months. Morning temperatures rest at around 72.9°F (22.7°C), gradually increasing to daily highs of 80.4°F (26.9°C). Generally, the wind speed in this month registers at 9.1mph (14.6km/h). Weather in January »Weather in February
Transitioning from January, February displays a continuation in its weather pattern. There is an almost negligible augmentation in the daytime high, reaching 80.6°F (27°C), which pairs with the typical low of 72.9°F (22.7°C). Weather in February »Weather in March
As spring commences in Vega Baja, a slight warming trend gradually sets in. The maximum temperature records a mild escalation to 80.2°F (26.8°C), while the minimum hovers around 72.5°F (22.5°C). The blustery condition from February continues into March with a wind speed of 8.8mph (14.2km/h). Weather in March »Weather in April
Compared to the previous month, April experiences more rainfall measuring 1.77" (45mm). April brings a reasonable leap in temperatures, with highs reaching 81.7°F (27.6°C) and lows around 73.8°F (23.2°C). Wind speed slightly decreases to 8.6mph (13.8km/h). Weather in April »Weather in May
Entering May, Vega Baja witnesses the onset of high humidity levels, a precursor to the upcoming summer solstice. May registers a sizable enhancement in the high temperature rising up to 83.1°F (28.4°C), while the low temperature hovers around 75.6°F (24.2°C). Weather in May »Weather in June
June calls in the summer season with high temperatures soaring at 84.6°F (29.2°C) and a low of 77°F (25°C). The wind speed climbs slightly to 8.7mph (14km/h). Vega Baja radiates under the longest day of the year during the summer solstice. Weather in June »Weather in July
July holds the distinction of being the hottest month, owning the highest temperature of the year, at 84.7°F (29.3°C). Vega Baja experiences the warmest nights, with temperatures seldom dropping below 78.1°F (25.6°C). A notable increase in wind speed to 9.9mph (15.9km/h) brings along slight relief from the sultry weather. Weather in July »Weather in August
August in Vega Baja experiences a minor increase in its high temperature, touching 85.6°F (29.8°C). Nights also get warmer with the minimum temperature rising to 78.4°F (25.8°C). The wind speed drops slightly to 9.5mph (15.3km/h). Weather in August »Weather in September
September beckons the arrival of fall in Vega Baja. The transition to autumn causes a slight dip in temperature, slipping to 85.5°F (29.7°C) as the highest and 78.3°F (25.7°C) as the lowest. Wind speed drops further to 7.4mph (11.9km/h). Weather in September »Weather in October
In October, the city experiences a modest decline in temperatures with the high and low falling to 84.7°F (29.3°C) and 78.1°F (25.6°C), respectively. The descent in temperature is accompanied by a decrease in wind speed, averaging 6.8mph (10.9km/h). Weather in October »Weather in November
November markes the commencement of the winter season in Vega Baja. The city undergoes a significant drop in the high temperature, with the average falling to 82.8°F (28.2°C), while the low rests at 76.1°F (24.5°C). Wind speeds get a small boost, increasing to 7.4mph (11.9km/h). Weather in November »Weather in December
December marks the low point in Vega Baja's annual temperature cycle. The city experiences its coldest temperature of the year, dropping to 81.3°F (27.4°C) during the day and 75.2°F (24°C) at night. With a wind speed of 9.3mph (15km/h), the chill factor considerably increases. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Vega Baja, PR
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is March (80.2°F).
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is March (72.5°F).
Average pressure
Vega Baja, PR
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30"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:
29.96"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 month with the highest atmospheric pressure is January (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).
Average wind speed
Vega Baja, PR
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.3mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.6mph - Average wind speed in May:
8.1mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.5mph - Average wind speed in September:
7.4mph - 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 (9.9mph).
The calmest month (with the lowest average wind speed) is October (6.8mph).
Average humidity
Vega Baja, PR
The months with the highest relative humidity are May, June, July, October and November (79%).
The months with the lowest relative humidity are February, March and April (77%).
Average rainfall
Vega Baja, PR
- Average rainfall in January:
1.06" - Average rainfall in February:
0.91" - Average rainfall in March:
2.17" - Average rainfall in April:
1.77" - Average rainfall in May:
4.02" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.68" - Average rainfall in September:
3.94" - Average rainfall in October:
3.46" - Average rainfall in November:
2.76" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days
Vega Baja, PR
- Average rainfall days in January:
13.3 days - Average rainfall days in February:
13.4 days - Average rainfall days in March:
17 days - Average rainfall days in April:
18.2 days - Average rainfall days in May:
22.9 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
18.6 days - Average rainfall days in September:
19.5 days - Average rainfall days in October:
22.1 days - Average rainfall days in November:
20.1 days - Average rainfall days in December:
14.4 days
The month with the highest number of rainy days is May (22.9 days).
The month with the least rainy days is January (13.3 days).
Average daylight / Average sunshine
Vega Baja, PR
- Average daylight in January:
11h and 12min - Average daylight in February:
11h and 36min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 12min
- Average daylight in July:
13h and 6min - Average daylight in August:
12h and 42min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 18min - 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 48min - Average sunshine in February:
8h and 48min - Average sunshine in March:
8h and 24min - Average sunshine in April:
8h and 42min - Average sunshine in May:
10h and 36min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 0min - Average sunshine in September:
9h and 24min - Average sunshine in October:
8h and 18min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days
Vega Baja, PR
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
10.7 days - Average sunshine days in March:
9.9 days - Average sunshine days in April:
7.8 days - Average sunshine days in May:
5.9 days - Average sunshine days in June:
8.8 days
- Average sunshine days in July:
8.2 days - Average sunshine days in August:
6.8 days - Average sunshine days in September:
7.3 days - Average sunshine days in October:
6.4 days - Average sunshine days in November:
6.5 days - Average sunshine days in December:
11.5 days
The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is May (5.9 days).
Average UV index
Vega Baja, PR
The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).
Average cloud cover
Vega Baja, PR
The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility
Vega Baja, 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).





