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May Weather in Vega Alta, Puerto Rico

Last updated: August 31, 2025

In May, the average temperature in Vega Alta, Puerto Rico is a warm 27°C (80°F). Expect a range with minimums dipping to 23°C (73°F) and maximums reaching up to 32°C (90°F). Be prepared for some rain, as 58 mm (2.3 in) can fall over the course of 14 days. With an average humidity of 75%, it’s a month to stay hydrated and enjoy the tropical vibe!

May Temperature in Vega Alta

In May in Vega Alta, the average temperature is 27°C (80°F), with maximums reaching 32°C (90°F) and minimums dropping to as low as 23°C (73°F). This climate makes it an ideal time for travelers looking to enjoy warm weather while exploring the vibrant sights of Vega Alta.

May Weather in Vega Alta: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Vega Alta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vega Alta, May typically has an average temperature of 27°C (80°F), with highs reaching up to 32°C (90°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec777777788081828282818078
Data source: Temperature data for Vega Alta generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Vega Alta

In Vega Alta in May, the precipitation amount is 58 mm (2.3 in) over the course of 14 days.

May Precipitation Trends in Vega Alta

The chart displays monthly precipitation patterns in Vega Alta, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Vega Alta, May typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec39437255586276861721369350
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Vega Alta

In Vega Alta in May humidity is 75%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as every step can leave you feeling sticky and in need of frequent hydration breaks.

May Average Humidity in Vega Alta

This chart illustrates the average monthly humidity levels in Vega Alta, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Vega Alta is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Vega Alta

In Vega Alta in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Vega Alta, you can check here.

Maximum UV Index Levels in Vega Alta for May

The chart shows the monthly maximum UV Index (UVI) for Vega Alta in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Vega Alta typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Vega Alta May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Vega Alta Compares to Other Months

Weather in Vega Alta varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Vega Alta, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Vega Alta, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)39 mm (1.5 inches)76%very high
February Weather25°C (77°F)43 mm (1.7 inches)75%extreme
March Weather25°C (77°F)72 mm (2.8 inches)74%extreme
April Weather26°C (78°F)55 mm (2.2 inches)75%extreme
May Weather27°C (80°F)58 mm (2.3 inches)75%extreme
June Weather27°C (81°F)62 mm (2.4 inches)77%extreme
July Weather28°C (82°F)76 mm (3.0 inches)80%extreme
August Weather28°C (82°F)86 mm (3.4 inches)80%extreme
September Weather28°C (82°F)172 mm (6.8 inches)79%extreme
October Weather27°C (81°F)136 mm (5.3 inches)78%extreme
November Weather26°C (80°F)93 mm (3.7 inches)78%very high
December Weather26°C (78°F)50 mm (2.0 inches)76%very high

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