Dunedin Weather in December

The climate in Dunedin during December can be summarized as mild and reasonably dry.

December is in the summer in Dunedin and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 17°C (62°F), whilst at night 10°C (50°F) is normal.

On average December is the 3rd wettest month of the year in Dunedin with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 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 Dunedin in December 2025.