San Jose Weather in December
December in San Jose brings moderate temperatures around 15°C (59°F) during the day, dropping to 5°C (41°F) at night, with the most rainfall of the year.
Rainfall in San Jose in December
Being the wettest month, having an umbrella on standby can help you avoid getting caught in the rain. This month experiences about 11 days of rain according to historical data, averaging 63 mm (2.5 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in San Jose in December
In December, expect moderate temperatures in San Jose, with highs of 15°C (59°F) and lows of 5°C (41°F) at night. Winter occurs in December. The difference between afternoon and evening temperatures is usually noticeable. With lows around 5°C (41°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. This period often claims the chilliest monthly averages of the year.
Sunshine in San Jose in December
The city usually sees around 160 hours of sunlight, indicating a moderately sunny period.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit San Jose. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Jose's climate page.
San Jose Temperature in December
Min Temperature
5°C (41°F)
Max Temperature
15°C (59°F)
Chance of Rain
37%
Precipitation
63 mm (2.5 in)
Rainy days
11 days
Humidity
78% *
Sunshine
160 hours *
Percentage Sunshine
54% *
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
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What to Wear in San Jose in December
The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in San Jose in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Jose's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Jose climate overview or explore weather in the United States of America.
