The climate in Mantenópolis during December can be summarized as hot, humid and wet.
December is in the summer in Mantenópolis and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 18°C (65°F) is normal.
Daytime temperature | 28.4°C 83°F |
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Nightly temperature | 18.3°C 64.9°F |
Average temperature | 23.3°C 73.9°F |
Daily sunshine | 5.2 hrs |
Avg rainfall | 198 mm 7.8 ins |
Rainy days | 24 days |
Sea temperature | 25.7°C 78.2°F |
Humidity | 83% |
Windspeed | 8.6kph 5 mph |
On average December is the 2nd wettest month of the year in Mantenópolis with around 198mm 7.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
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 Mantenópolis in December 2025.
Best places to visit in December
Hottest month: | February | 29.9°C 85.8°F |
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Driest month: | June | 25mm 1ins |
Sunniest month: | May | 6.4hrs |
Coldest month: | July | 24.6°C 76.3°F |
Wettest month: | January | 199mm 7.8ins |