The climate in San Jose during January can be summarized as hot, humid and reasonably dry.
January is in the winter in San Jose and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 19°C (67°F) is normal.
|Daytime temperature||27.3°C 81.1°F|
|Nightly temperature||19.2°C 66.5°F|
|Average temperature||23.2°C 73.8°F|
|Daily sunshine||5.8 hrs|
|Avg rainfall||71 mm 2.8 ins|
|Rainy days||11 days|
|Sea temperature||26.3°C 79.3°F|
|Windspeed||9.4kph 6 mph|
On average January is the 4th driest month of the year in San Jose with around 71mm 2.8 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 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 January 2019.
|Hottest month:||May||34.4°C 93.9°F|
|Driest month:||February||43mm 1.7ins|
|Coldest month:||January||27.1°C 80.8°F|
|Wettest month:||November||384mm 15.1ins|