San José Weather in January
What's the weather like in San José (San José) in January 2025?
The climate in San José during January can be summarized as warm and very dry.
January is in the winter in San José and is typically the coldest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 23.1°C 73.5°F |
|---|---|
| Nightly temperature | 15°C 58.9°F |
| Average temperature | 19°C 66.2°F |
| Daily sunshine | 7.1 hrs |
| Avg rainfall | 7 mm 0.3 ins |
| Rainy days | 12 days |
| Sea temperature | 28.3°C 83°F |
| Humidity | 79% |
| Windspeed | 24.1kph 15 mph |
On average January is the driest month of the year in San José with around 7mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 7.1 hours of sunshine per day.
January temperatures in San José
January rainfall
January 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 January 2024.
Other monthly averages
Best places to visit in January
San José weather stats
| Hottest month: | May | 25°C 77°F |
|---|---|---|
| Driest month: | January | 7mm 0.3ins |
| Sunniest month: | March | 7.6hrs |
| Coldest month: | January | 22.9°C 73.2°F |
| Wettest month: | September | 372mm 14.6ins |
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