San Antonio Weather in December
What's the weather like in San Antonio (Canelones) in December 2024?
The climate in San Antonio during December can be summarized as warm and a little damp.
December is in the summer in San Antonio and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 27°C 80.6°F |
|---|---|
| Nightly temperature | 16.8°C 62.2°F |
| Average temperature | 21.9°C 71.4°F |
| Daily sunshine | 9.7 hrs |
| Avg rainfall | 82 mm 3.2 ins |
| Rainy days | 10 days |
| Sea temperature | 20.8°C 69.5°F |
| Humidity | 68% |
| Windspeed | 17.6kph 11 mph |
On average December is the driest month of the year in San Antonio with around 82mm 3.2 inches of rain making it a a little damp 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 9.7 hours of sunshine per day.
December temperatures in San Antonio
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 San Antonio in December 2024.
Other monthly averages
Best places to visit in December
San Antonio weather stats
| Hottest month: | January | 28.7°C 83.7°F |
|---|---|---|
| Driest month: | December | 82mm 3.2ins |
| Sunniest month: | January | 9.9hrs |
| Coldest month: | July | 15°C 59°F |
| Wettest month: | October | 108mm 4.3ins |
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