Weather in San Jose: December
 |
Average day temperature: | 75.2°F |
| Average night temperature: | 57.2°F | |
 |
Sea water temperature: | 83.2°F |
 |
Number of sunny days: | 8 days |
| Day length: | 11.5 - 11.6 hours | |
 |
Number of rainy days: | 6 days |
| Precipitation totals: | 3.7 in. | |
| more information | ||
forecast
| San Jose |
temperature
| San Jose |
Air temperature in December, °F
| Day temperature | Night temperature |
The highest day temperature during December of 2024 was 77°F. At the same time the lowest night temperature was 53°F. Day and night temperature averages during December were 72.2°F and 57.3°F.
Sea water temperature in San Jose in December, °F
The average sea water temperature in December of 2024 was 83.3°F. The highest and lowest sea temperatures during the month were 84.7°F and 82.4°F.
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
Mostly all days in December are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in San Jose in December is 3.7 in. It makes december one of the most dry months of the year.
The average wind speed value in December is 5.3 mph It makes December one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.3.
Best time for vacation in San Jose
San Jose on a weather map
2 mph
3 mph
4 mph
4 mph
4 mph
2 mph
2 mph
2 mph
