The highest day temperature in January 2025 was 60°F. The lowest night temperature was 32°F. The average values for day and night temperatures during January were 51.1°F и 42.9°F respectivly.

The average sea surface temperature in January 2025 for Thessaloniki was 52.7°F. The maximum and minimum values were 51.2°F and 54.6°F respectively.

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

Precipitation total in January for Thessaloniki is 1.5 in.

The average wind speed in January is 5.7 mph. This value is relatively stable throughout the year.

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 Thessaloniki in January is 6.2 hours.