El Rosario Weather in December
What's the weather like in El Rosario (Carazo) in December 2025?
The climate in El Rosario during December can be summarized as hot, humid and damp.
December is in the winter in El Rosario and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (87°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 30.3°C 86.5°F |
|---|---|
| Nightly temperature | 20.7°C 69.3°F |
| Average temperature | 25.5°C 77.9°F |
| Daily sunshine | 7.7 hrs |
| Avg rainfall | 107 mm 4.2 ins |
| Rainy days | 7 days |
| Sea temperature | 27.5°C 81.5°F |
| Humidity | 75% |
| Windspeed | 10.8kph 7 mph |
On average December is the 5th driest month of the year in El Rosario with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.7 hours of sunshine per day.
December temperatures in El Rosario
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 El Rosario in December 2025.
Other monthly averages
Best places to visit in December
El Rosario weather stats
| Hottest month: | April | 33.2°C 91.8°F |
|---|---|---|
| Driest month: | March | 26mm 1ins |
| Sunniest month: | February | 9.6hrs |
| Coldest month: | December | 30.1°C 86.2°F |
| Wettest month: | July | 324mm 12.8ins |
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