The highest day temperature in January 2024 was 67°F. The lowest night temperature was 29°F. The average values for day and night temperatures during January were 55.2°F и 44.7°F respectivly.

The average sea surface temperature in January 2024 for San Sebastian was 57.5°F. The maximum and minimum values were 56.2°F and 58.8°F respectively.

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

Precipitation total in January for San Sebastian is 5.0 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 8.6 mph. It makes January one of the most windy months of the year for San Sebastian.

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 Sebastian in January is 4.6 hours.