The highest day temperature in January 2024 was 97°F. The lowest night temperature was 76°F. The average values for day and night temperatures during January were 95.0°F и 80.1°F respectivly.

The average sea surface temperature in January 2024 for San Diego was 86.2°F. The maximum and minimum values were 84.4°F and 87.4°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 Diego is 0.0 in. It makes january the least rainy month of the year.

The average wind speed in January is 12.5 mph. It makes January one of the most windy months of the year for San Diego.

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 Diego in January is 9.7 hours.