Castelo Weather in December
What's the weather like in Castelo (Espírito Santo) in December 2025?
The climate in Castelo during December can be summarized as hot, humid and wet.
December is in the summer in Castelo and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 29.3°C 84.7°F |
|---|---|
| Nightly temperature | 19.3°C 66.7°F |
| Average temperature | 24.3°C 75.7°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 195 mm 7.7 ins |
| Rainy days | 23 days |
| Sea temperature | 25.4°C 77.7°F |
| Humidity | 80% |
| Windspeed | 8.3kph 5 mph |
On average December is the wettest month of the year in Castelo with around 195mm 7.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
December temperatures in Castelo
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 Castelo in December 2025.
Other monthly averages
Best places to visit in December
Castelo weather stats
| Hottest month: | February | 31°C 87.8°F |
|---|---|---|
| Driest month: | June | 26mm 1ins |
| Sunniest month: | April | 8.5hrs |
| Coldest month: | July | 25.2°C 77.4°F |
| Wettest month: | December | 195mm 7.7ins |
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