The highest day temperature in January 2025 was 40°F. The lowest night temperature was 23°F. The average values for day and night temperatures during January were 32.8°F и 31.5°F respectivly.

The average sea surface temperature in January 2025 for Tallinn was 36.1°F. The maximum and minimum values were 34.8°F and 38.6°F respectively.

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

Precipitation total in January for Tallinn is 1.8 in.

The average wind speed in January is 12.7 mph. It makes January one of the most windy months of the year for Tallinn.

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 Tallinn in January is 1.7 hours.