Costa Rica Weather in March
What's the weather like in Costa Rica (Estado de Mato Grosso do Sul) in March 2025?
The climate in Costa Rica during March can be summarized as hot, humid and wet.
March is in the fall / autumn in Costa Rica and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 20°C (67°F) is normal.
| Daytime temperature | 30°C 85.9°F |
|---|---|
| Nightly temperature | 19.7°C 67.4°F |
| Average temperature | 24.8°C 76.6°F |
| Daily sunshine | 7.2 hrs |
| Avg rainfall | 129 mm 5.1 ins |
| Rainy days | 9 days |
| Sea temperature | 24.9°C 76.9°F |
| Humidity | 82% |
| Windspeed | 6.8kph 4 mph |
On average March is the 6th driest month of the year in Costa Rica with around 129mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 hours of sunshine per day.
March temperatures in Costa Rica
March rainfall
March hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Costa Rica in March 2025.
Other monthly averages
Costa Rica weather stats
| Hottest month: | February | 31°C 87.8°F |
|---|---|---|
| Driest month: | July | 61mm 2.4ins |
| Sunniest month: | April | 7.2hrs |
| Coldest month: | June | 23.1°C 73.6°F |
| Wettest month: | December | 198mm 7.8ins |
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