The climate in Charles City during December can be summarized as cool and a little damp.
December is in the winter in Charles City and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 11°C (51°F), whilst at night -1°C (31°F) is normal.
| Daytime temperature | 10.6°C 51°F |
|---|---|
| Nightly temperature | -0.8°C 30.7°F |
| Average temperature | 4.9°C 40.8°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 84 mm 3.3 ins |
| Rainy days | 9 days |
| Sea temperature | 10.2°C 50.3°F |
| Humidity | 68% |
| Windspeed | 14.8kph 9 mph |
On average December is the 2nd driest month of the year in Charles City with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 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 Charles City in December 2025.
Best places to visit in December
| Hottest month: | July | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | April | 77mm 3ins |
| Sunniest month: | June | 10.6hrs |
| Coldest month: | January | 7.9°C 46.2°F |
| Wettest month: | July | 119mm 4.7ins |