The highest day temperature in January 2025 was 66°F. The lowest night temperature was 58°F. The average values for day and night temperatures during January were 61.7°F и 61.4°F respectivly.

The average sea surface temperature in January 2025 for Santorini was 65.8°F. The maximum and minimum values were 65.2°F and 67.0°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Santorini is 2.2 in. It makes january the most rainy month of the year.

The average wind speed in January is 17.5 mph. It makes January the most windy month of the year for Santorini.

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 Santorini in January is 5.7 hours.