Río Blanco Weather in December
What's the weather like in Río Blanco (Naguabo) in December 2025?
The climate in Río Blanco during December can be summarized as hot, humid and very wet.
December is in the winter in Río Blanco and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 26.3°C 79.3°F |
|---|---|
| Nightly temperature | 19.7°C 67.5°F |
| Average temperature | 23°C 73.4°F |
| Daily sunshine | 7.6 hrs |
| Avg rainfall | 252 mm 9.9 ins |
| Rainy days | 21 days |
| Sea temperature | 27.3°C 81.1°F |
| Humidity | 76% |
| Windspeed | 16.2kph 10 mph |
On average December is the 5th driest month of the year in Río Blanco with around 252mm 9.9 inches of rain making it a very wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
December temperatures in Río Blanco
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 Río Blanco in December 2025.
Other monthly averages
Best places to visit in December
Río Blanco weather stats
| Hottest month: | August | 28.9°C 84°F |
|---|---|---|
| Driest month: | March | 119mm 4.7ins |
| Sunniest month: | March | 9.5hrs |
| Coldest month: | February | 25.8°C 78.4°F |
| Wettest month: | September | 342mm 13.5ins |
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