Flinders Weather in December
What's the weather like in Flinders (New South Wales) in December 2025?
The climate in Flinders during December can be summarized as warm and a little damp.
December is in the summer in Flinders and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 25°C 77°F |
|---|---|
| Nightly temperature | 14.9°C 58.8°F |
| Average temperature | 20°C 67.9°F |
| Daily sunshine | 8.1 hrs |
| Avg rainfall | 98 mm 3.9 ins |
| Rainy days | 11 days |
| Sea temperature | 21.4°C 70.5°F |
| Humidity | 60% |
| Windspeed | 16.3kph 10 mph |
On average December is the 4th driest month of the year in Flinders with around 98mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.1 hours of sunshine per day.
December temperatures in Flinders
December rainfall
December hourly sunshine
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 Flinders in December 2025.
Other monthly averages
Best places to visit in December
Flinders weather stats
| Hottest month: | February | 25.4°C 77.7°F |
|---|---|---|
| Driest month: | September | 65mm 2.6ins |
| Sunniest month: | August | 7.6hrs |
| Coldest month: | July | 15.5°C 59.9°F |
| Wettest month: | March | 177mm 7ins |
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