May Weather in Guayama, Puerto Rico

Last updated: August 31, 2025

In May, the average temperature in Guayama, Puerto Rico hovers around 25°C (78°F), with minimums dipping to 22°C (73°F) and maximums reaching 29°C (84°F). During this month, precipitation amounts to 97 mm (3.8 in) over about 24 days, resulting in an average humidity level of 76%. Be prepared for some wet weather amidst the warmth!

May Temperature in Guayama

In May in Guayama, the average temperature is 25°C (78°F). The maximum can reach 29°C (84°F) and the minimum can be as low as 22°C (73°F). This pleasant and mild weather makes Guayama an ideal destination for outdoor activities and sightseeing.

May Weather in Guayama: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Guayama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guayama, May typically has an average temperature of 25°C (78°F), with highs reaching up to 29°C (84°F) and lows dropping to around 22°C (73°F).

Data source: Temperature data for Guayama generated using information from the Copernicus Climate Change Service.

May Precipitation in Guayama

In Guayama in May, the precipitation amount is 97 mm (3.8 in), occurring over the course of 24 days.

May Precipitation Trends in Guayama

The chart displays monthly precipitation patterns in Guayama, 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 Guayama, May typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Guayama

In Guayama in May humidity is 76%. With an average temperature of 25°C (78°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick, causing travelers to seek shade and refreshment more often.

May Average Humidity in Guayama

This chart illustrates the average monthly humidity levels in Guayama, 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 Guayama is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Guayama

In Guayama in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Guayama.

Maximum UV Index Levels in Guayama for May

The chart shows the monthly maximum UV Index (UVI) for Guayama 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 Guayama typically reaches 13, which falls under the extreme exposure category.

Data source: Guayama 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 Guayama Compares to Other Months

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

This table compares monthly weather conditions in Guayama, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	48 mm (1.9 inches)	76%	very high
February Weather	24°C (76°F)	51 mm (2.0 inches)	75%	extreme
March Weather	24°C (76°F)	64 mm (2.5 inches)	75%	extreme
April Weather	25°C (77°F)	67 mm (2.7 inches)	76%	extreme
May Weather	25°C (78°F)	97 mm (3.8 inches)	76%	extreme
June Weather	26°C (79°F)	92 mm (3.6 inches)	78%	extreme
July Weather	27°C (80°F)	139 mm (5.5 inches)	81%	extreme
August Weather	27°C (81°F)	134 mm (5.3 inches)	80%	extreme
September Weather	27°C (81°F)	190 mm (7.5 inches)	79%	extreme
October Weather	27°C (80°F)	165 mm (6.5 inches)	78%	extreme
November Weather	26°C (79°F)	119 mm (4.7 inches)	78%	very high
December Weather	25°C (77°F)	67 mm (2.6 inches)	77%	very high