The highest day temperature in January 2025 was 41°F. The lowest night temperature was 7°F. The average values for day and night temperatures during January were 24.6°F и 23.5°F respectivly.

The average sea surface temperature in January 2025 for Vaasa was 29.4°F. The maximum and minimum values were 27.8°F and 33.2°F respectively.

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

Precipitation total in January for Vaasa is 1.6 in.

The average wind speed in January is 11.6 mph. It makes January one of the most windy months of the year for Vaasa.

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 Vaasa in January is 1.9 hours.