The highest day temperature in January 2024 was 85°F. The lowest night temperature was 54°F. The average values for day and night temperatures during January were 81.1°F и 57.1°F respectivly.

The average sea surface temperature in January 2024 for San Jose was 90.2°F. The maximum and minimum values were 88.6°F and 91.4°F respectively.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for San Jose is 1.8 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 6.2 mph. It makes January one of the most windy months of the year for San Jose.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for San Jose in January is 7.5 hours.