Jamestown Weather in December

The climate in Jamestown during December can be summarized as cool and damp.

December is in the winter in Jamestown and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night 0°C (33°F) is normal.

On average December is the 5th wettest month of the year in Jamestown with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.4 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 Jamestown in December 2025.