Belmopan Weather in December
What's the weather like in Belmopan (Cayo) in December 2025?
The climate in Belmopan during December can be summarized as hot, humid and wet.
December is in the winter in Belmopan and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 27°C 80.5°F |
|---|---|
| Nightly temperature | 19.3°C 66.7°F |
| Average temperature | 23.1°C 73.6°F |
| Daily sunshine | 6.2 hrs |
| Avg rainfall | 168 mm 6.6 ins |
| Rainy days | 13 days |
| Sea temperature | 27.7°C 81.9°F |
| Humidity | 81% |
| Windspeed | 10.8kph 7 mph |
On average December is the 6th driest month of the year in Belmopan with around 168mm 6.6 inches of rain making it a wet 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 6.2 hours of sunshine per day.
December temperatures in Belmopan
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 Belmopan in December 2025.
Other monthly averages
Best places to visit in December
Belmopan weather stats
| Hottest month: | June | 31.1°C 88°F |
|---|---|---|
| Driest month: | April | 51mm 2ins |
| Sunniest month: | April | 8.6hrs |
| Coldest month: | January | 26.7°C 80.1°F |
| Wettest month: | June | 280mm 11ins |
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