Gladstone Weather in December

The climate in Gladstone during December can be summarized as hot and wet.

December is in the summer in Gladstone and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a warm 31°C (88°F), whilst at night 21°C (69°F) is normal.

On average December is the 3rd wettest month of the year in Gladstone with around 134mm 5.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.2 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 Gladstone in December 2025.