Saint Johns Weather in December

The climate in Saint Johns during December can be summarized as cool and dry.

December is in the winter in Saint Johns and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -8°C (18°F) is normal.

On average December is the 6th driest month of the year in Saint Johns with around 17mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 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 Saint Johns in December 2025.