March Weather in Costa Rica, Mexico

Last updated: August 26, 2025

In March, the average temperature in Costa Rica, Mexico hovers around 24°C (75°F). You'll experience a range, with minimums dipping to 14°C (57°F) and maximums soaring up to 35°C (96°F). Expect a modest 6 mm (0.2 in) of precipitation over about 1 day, and enjoy an average humidity level of 59%.

March Temperature in Costa Rica

In March in Costa Rica, the average temperature is 24°C (75°F). Maximum temperatures can reach 35°C (96°F), while minimums can drop to as low as 14°C (57°F). This makes Costa Rica an ideal destination for travelers looking to enjoy warm weather while still having the option for cooler evenings.

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 24°C (75°F), with highs reaching up to 35°C (96°F) and lows dropping to around 14°C (57°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 precipitation amount is 6 mm (0.2 in) over the course of 1 day.

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 6 mm (0.2 inches) of precipitation spread over approximately 1 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 59%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making outdoor activities refreshing yet slightly sticky, perfect for leisurely strolls but reminding travelers to stay 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 59%, 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 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 Costa Rica, you can check here.

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 14, 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	21°C (70°F)	13 mm (0.5 inches)	76%	extreme
February Weather	22°C (72°F)	8 mm (0.3 inches)	68%	extreme
March Weather	24°C (75°F)	6 mm (0.2 inches)	59%	extreme
April Weather	26°C (78°F)	21 mm (0.8 inches)	57%	extreme
May Weather	26°C (79°F)	118 mm (4.6 inches)	65%	extreme
June Weather	24°C (75°F)	305 mm (12.0 inches)	66%	extreme
July Weather	24°C (76°F)	81 mm (3.2 inches)	75%	extreme
August Weather	24°C (76°F)	137 mm (5.4 inches)	82%	extreme
September Weather	24°C (75°F)	216 mm (8.5 inches)	82%	extreme
October Weather	23°C (74°F)	180 mm (7.1 inches)	83%	extreme
November Weather	22°C (72°F)	42 mm (1.6 inches)	80%	extreme
December Weather	21°C (71°F)	14 mm (0.5 inches)	76%	very high