The climate in Georgetown during December can be summarized as cool and a little damp.
December is in the winter in Georgetown and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -2°C (29°F) is normal.
| Daytime temperature | 8.6°C 47.5°F |
|---|---|
| Nightly temperature | -1.6°C 29.1°F |
| Average temperature | 3.5°C 38.3°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 90 mm 3.5 ins |
| Rainy days | 9 days |
| Sea temperature | 8.1°C 46.6°F |
| Humidity | 70% |
| Windspeed | 15.5kph 10 mph |
On average December is the 6th wettest month of the year in Georgetown with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 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 Georgetown in December 2025.
Best places to visit in December
| Hottest month: | July | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | February | 80mm 3.1ins |
| Sunniest month: | April | 9hrs |
| Coldest month: | January | 5.7°C 42.3°F |
| Wettest month: | August | 119mm 4.7ins |