Merimbula Weather in December
What's the weather like in Merimbula (New South Wales) in December 2025?
The climate in Merimbula during December can be summarized as warm and reasonably dry.
December is in the summer in Merimbula and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 14°C (57°F) is normal.
| Daytime temperature | 23°C 73.4°F |
|---|---|
| Nightly temperature | 13.8°C 56.8°F |
| Average temperature | 18.4°C 65.1°F |
| Daily sunshine | 8.3 hrs |
| Avg rainfall | 74 mm 2.9 ins |
| Rainy days | 11 days |
| Sea temperature | 19.6°C 67.3°F |
| Humidity | 73% |
| Windspeed | 22kph 14 mph |
On average December is the 5th driest month of the year in Merimbula with around 74mm 2.9 inches of rain making it a reasonably dry 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 8.3 hours of sunshine per day.
December temperatures in Merimbula
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 Merimbula in December 2025.
Other monthly averages
Best places to visit in December
Merimbula weather stats
| Hottest month: | February | 24.1°C 75.4°F |
|---|---|---|
| Driest month: | July | 49mm 1.9ins |
| Sunniest month: | February | 8.1hrs |
| Coldest month: | July | 15.3°C 59.5°F |
| Wettest month: | March | 91mm 3.6ins |
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