May Weather in Stella, Puerto Rico

Last updated: August 31, 2025

In May, the average temperature in Stella, 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 Stella

In May in Stella, 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 Stella: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Stella, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stella, 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).

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

May Precipitation in Stella

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

May Precipitation Trends in Stella

The chart displays monthly precipitation patterns in Stella, 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 Stella, May typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 14 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 Stella

In Stella 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 Stella

This chart illustrates the average monthly humidity levels in Stella, 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 Stella is approximately 75%, 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 Stella

In Stella 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 Stella, you can check here.

Maximum UV Index Levels in Stella for May

The chart shows the monthly maximum UV Index (UVI) for Stella 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 Stella typically reaches 14, which falls under the extreme exposure category.

Data source: Stella 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 Stella Compares to Other Months

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

This table compares monthly weather conditions in Stella, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	16 mm (0.6 inches)	76%	very high
February Weather	25°C (77°F)	21 mm (0.8 inches)	75%	extreme
March Weather	25°C (77°F)	38 mm (1.5 inches)	74%	extreme
April Weather	26°C (78°F)	39 mm (1.5 inches)	75%	extreme
May Weather	26°C (80°F)	49 mm (1.9 inches)	75%	extreme
June Weather	27°C (81°F)	48 mm (1.9 inches)	77%	extreme
July Weather	28°C (82°F)	69 mm (2.7 inches)	80%	extreme
August Weather	28°C (82°F)	64 mm (2.5 inches)	80%	extreme
September Weather	28°C (82°F)	141 mm (5.5 inches)	79%	extreme
October Weather	27°C (81°F)	71 mm (2.8 inches)	78%	extreme
November Weather	27°C (80°F)	66 mm (2.6 inches)	78%	very high
December Weather	26°C (79°F)	19 mm (0.8 inches)	76%	very high