Costa Rica Weather in December
What's the weather like in Costa Rica (Estado de Mato Grosso do Sul) in December 2024?
The climate in Costa Rica during December can be summarized as hot, humid and wet.
December is in the summer in Costa Rica and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 30.8°C 87.4°F |
|---|---|
| Nightly temperature | 20.1°C 68.1°F |
| Average temperature | 25.4°C 77.7°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 198 mm 7.8 ins |
| Rainy days | 11 days |
| Sea temperature | 23.5°C 74.3°F |
| Humidity | 77% |
| Windspeed | 10.8kph 7 mph |
On average December is the wettest month of the year in Costa Rica with around 198mm 7.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
December temperatures in Costa Rica
December rainfall
December 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 December 2024.
Other monthly averages
Best places to visit in December
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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