San José Weather in December
What's the weather like in San José (Toa Baja) in December 2024?
The climate in San José during December can be summarized as hot, humid and wet.
December is in the winter in San José and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 27.1°C 80.8°F |
|---|---|
| Nightly temperature | 20.7°C 69.3°F |
| Average temperature | 23.9°C 75°F |
| Daily sunshine | 7.6 hrs |
| Avg rainfall | 156 mm 6.1 ins |
| Rainy days | 21 days |
| Sea temperature | 27.3°C 81.2°F |
| Humidity | 76% |
| Windspeed | 15.8kph 10 mph |
On average December is the 6th wettest month of the year in San José with around 156mm 6.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
December temperatures in San José
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 José in December 2024.
Other monthly averages
Best places to visit in December
San José weather stats
| Hottest month: | August | 29.8°C 85.6°F |
|---|---|---|
| Driest month: | March | 87mm 3.4ins |
| Sunniest month: | March | 9.6hrs |
| Coldest month: | January | 26.4°C 79.5°F |
| Wettest month: | August | 193mm 7.6ins |
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