May Weather in Rio Segundo, Costa Rica

Last updated: August 23, 2025

In May, the average temperature in Rio Segundo, Costa Rica hovers around 21°C (70°F), with a comfortable minimum of 16°C (61°F) and a warm maximum reaching 30°C (86°F). Visitors should be prepared for 310 mm (12.2 in) of precipitation spread over 29 days, contributing to an average humidity of 70%.

May Temperature in Rio Segundo

In May in Rio Segundo, the average temperature is 21°C (70°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 16°C (61°F). This moderate climate makes it an ideal destination for travelers looking to enjoy pleasant weather.

May Weather in Rio Segundo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rio Segundo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Segundo, May typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (86°F) and lows dropping to around 16°C (61°F).

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

May Precipitation in Rio Segundo

In Rio Segundo, in May, the total precipitation amount is 310 mm (12.2 in) spread over 29 days.

May Precipitation Trends in Rio Segundo

The chart displays monthly precipitation patterns in Rio Segundo, 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 Rio Segundo, May typically receives around 310 mm (12.2 inches) of precipitation spread over approximately 29 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 Rio Segundo

In Rio Segundo in May, humidity is 70%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace, making travel slightly uncomfortable, as the air clings to your skin and can leave you feeling sticky and in need of frequent breaks to cool down.

May Average Humidity in Rio Segundo

This chart illustrates the average monthly humidity levels in Rio Segundo, 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 Rio Segundo is approximately 70%, 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 Rio Segundo

In Rio Segundo 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 Rio Segundo, you can check here.

Maximum UV Index Levels in Rio Segundo for May

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

Data source: Rio Segundo 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 Rio Segundo Compares to Other Months

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

This table compares monthly weather conditions in Rio Segundo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	109 mm (4.3 inches)	71%	extreme
February Weather	19°C (66°F)	48 mm (1.9 inches)	70%	extreme
March Weather	19°C (67°F)	57 mm (2.2 inches)	68%	extreme
April Weather	21°C (69°F)	113 mm (4.5 inches)	69%	extreme
May Weather	21°C (70°F)	310 mm (12.2 inches)	70%	extreme
June Weather	21°C (70°F)	275 mm (10.8 inches)	81%	extreme
July Weather	21°C (69°F)	275 mm (10.8 inches)	88%	extreme
August Weather	21°C (70°F)	273 mm (10.7 inches)	85%	extreme
September Weather	21°C (70°F)	287 mm (11.3 inches)	84%	extreme
October Weather	21°C (69°F)	402 mm (15.8 inches)	82%	extreme
November Weather	20°C (68°F)	272 mm (10.7 inches)	81%	extreme
December Weather	19°C (67°F)	192 mm (7.6 inches)	74%	very high