March Weather in Costa Rica, Peru

Last updated: August 27, 2025

In Costa Rica, Peru, the average temperature in March hovers around 25°C (77°F), with a comfortable minimum of 18°C (65°F) and a warm maximum of 34°C (93°F). Expect 242 mm (9.5 in) of precipitation spread over 27 days, contributing to an average humidity of 81%. Come prepared for both sun and rain!

March Temperature in Costa Rica

In March in Costa Rica, the average temperature is 25°C (77°F). Maximums can reach 34°C (93°F), and minimums can be as low as 18°C (65°F). It's a perfect time for travelers to enjoy pleasant weather and outdoor activities.

March Weather in Costa Rica: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Costa Rica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Costa Rica, March typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (93°F) and lows dropping to around 18°C (65°F).

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

March Precipitation in Costa Rica

In Costa Rica in March, the total precipitation amount is 242 mm (9.5 in) spread over 27 days.

March Precipitation Trends in Costa Rica

The chart displays monthly precipitation patterns in Costa Rica, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Costa Rica, March typically receives around 242 mm (9.5 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Costa Rica

In Costa Rica in March, humidity is 81%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, thick blanket, making traveling quite challenging as you may feel sticky and sluggish, requiring frequent breaks to stay refreshed and hydrated.

March Average Humidity in Costa Rica

This chart illustrates the average monthly humidity levels in Costa Rica, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Costa Rica is approximately 81%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Costa Rica

In Costa Rica in March, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Costa Rica.

Maximum UV Index Levels in Costa Rica for March

The chart shows the monthly maximum UV Index (UVI) for Costa Rica in March, 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 March, the maximum UV index in Costa Rica typically reaches 16, which falls under the extreme exposure category.

Data source: Costa Rica March 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 March Weather in Costa Rica Compares to Other Months

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

This table compares monthly weather conditions in Costa Rica, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	217 mm (8.5 inches)	80%	extreme
February Weather	25°C (77°F)	212 mm (8.4 inches)	76%	extreme
March Weather	25°C (77°F)	242 mm (9.5 inches)	81%	extreme
April Weather	25°C (77°F)	174 mm (6.9 inches)	86%	extreme
May Weather	25°C (76°F)	148 mm (5.8 inches)	86%	extreme
June Weather	24°C (76°F)	94 mm (3.7 inches)	70%	extreme
July Weather	24°C (75°F)	62 mm (2.5 inches)	47%	extreme
August Weather	25°C (77°F)	61 mm (2.4 inches)	37%	extreme
September Weather	26°C (79°F)	53 mm (2.1 inches)	42%	extreme
October Weather	26°C (79°F)	146 mm (5.7 inches)	62%	extreme
November Weather	25°C (78°F)	247 mm (9.7 inches)	76%	extreme
December Weather	25°C (78°F)	220 mm (8.7 inches)	89%	extreme