Santa María Weather in December
What's the weather like in Santa María (Herrera) in December 2025?
The climate in Santa María during December can be summarized as hot, humid and reasonably dry.
December is in the winter in Santa María and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 28.8°C 83.8°F |
|---|---|
| Nightly temperature | 22.4°C 72.3°F |
| Average temperature | 25.6°C 78.1°F |
| Daily sunshine | 7.1 hrs |
| Avg rainfall | 69 mm 2.7 ins |
| Rainy days | 17 days |
| Sea temperature | 28°C 82.3°F |
| Humidity | 79% |
| Windspeed | 11.5kph 7 mph |
On average December is the 5th driest month of the year in Santa María with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
December temperatures in Santa María
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 Santa María in December 2025.
Other monthly averages
Best places to visit in December
Santa María weather stats
| Hottest month: | March | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | March | 5mm 0.2ins |
| Sunniest month: | April | 7.8hrs |
| Coldest month: | December | 28.6°C 83.5°F |
| Wettest month: | October | 340mm 13.4ins |
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