Santo Tomás Weather in December
What's the weather like in Santo Tomás (Chontales) in December 2025?
The climate in Santo Tomás during December can be summarized as hot, humid and damp.
December is in the winter in Santo Tomás and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 27.7°C 81.8°F |
|---|---|
| Nightly temperature | 19.4°C 66.8°F |
| Average temperature | 23.5°C 74.3°F |
| Daily sunshine | 6.9 hrs |
| Avg rainfall | 102 mm 4 ins |
| Rainy days | 13 days |
| Sea temperature | 27.6°C 81.7°F |
| Humidity | 78% |
| Windspeed | 13.3kph 8 mph |
On average December is the 5th driest month of the year in Santo Tomás with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.9 hours of sunshine per day.
December temperatures in Santo Tomás
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 Santo Tomás in December 2025.
Other monthly averages
Best places to visit in December
Santo Tomás weather stats
| Hottest month: | April | 30.8°C 87.4°F |
|---|---|---|
| Driest month: | March | 25mm 1ins |
| Sunniest month: | March | 8.3hrs |
| Coldest month: | December | 27.5°C 81.5°F |
| Wettest month: | July | 290mm 11.4ins |
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