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May Weather in Las Marias, Puerto Rico

Last updated: August 31, 2025

In May, the average temperature in Las Marias, Puerto Rico hovers around 26°C (80°F), with lows of 24°C (75°F) and highs reaching 29°C (85°F). Be prepared for some showers, as precipitation totals 49 mm (1.9 in) over 14 days, contributing to an average humidity of 75%.

May Temperature in Las Marias

In May in Las Marias, the average temperature is 26°C (80°F). Maximums can reach up to 29°C (85°F), while minimums can drop as low as 24°C (75°F). Overall, it's a pleasant time to visit, perfect for enjoying outdoor activities and exploring the local attractions.

May Weather in Las Marias: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Las Marias, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Marias, May typically has an average temperature of 26°C (80°F), with highs reaching up to 29°C (85°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec777777788081828282818079
Data source: Temperature data for Las Marias 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 Las Marias

In Las Marias in May, the precipitation amount is 49 mm (1.9 in) over the course of 14 days.

May Precipitation Trends in Las Marias

The chart displays monthly precipitation patterns in Las Marias, 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 Las Marias, May typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1721383949486964141716620
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Las Marias

In Las Marias in May humidity is 75%. With an average temperature of 26°C (80°F), this humidity feels like a warm, muggy embrace, making travel a bit sticky and uncomfortable but also inviting you to slow down and savor the local culture in shaded cafes and breezy spots by the water.

May Average Humidity in Las Marias

This chart illustrates the average monthly humidity levels in Las Marias, 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 Las Marias 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 Las Marias

In Las Marias 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 Las Marias, you can check here.

Maximum UV Index Levels in Las Marias for May

The chart shows the monthly maximum UV Index (UVI) for Las Marias 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 Las Marias typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Las Marias 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 Las Marias Compares to Other Months

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

This table compares monthly weather conditions in Las Marias, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)16 mm (0.6 inches)76%very high
February Weather25°C (77°F)21 mm (0.8 inches)75%extreme
March Weather25°C (77°F)38 mm (1.5 inches)74%extreme
April Weather26°C (78°F)39 mm (1.5 inches)75%extreme
May Weather26°C (80°F)49 mm (1.9 inches)75%extreme
June Weather27°C (81°F)48 mm (1.9 inches)77%extreme
July Weather28°C (82°F)69 mm (2.7 inches)80%extreme
August Weather28°C (82°F)64 mm (2.5 inches)80%extreme
September Weather28°C (82°F)141 mm (5.5 inches)79%extreme
October Weather27°C (81°F)71 mm (2.8 inches)78%extreme
November Weather27°C (80°F)66 mm (2.6 inches)78%very high
December Weather26°C (79°F)19 mm (0.8 inches)76%very high

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