The highest day temperature in January 2026 was 58°F. The lowest night temperature was 33°F. The average values for day and night temperatures during January were 52.5°F и 45.8°F respectivly.

The average sea surface temperature in January 2026 for Marina di Grosseto was 60.7°F. The maximum and minimum values were 59.0°F and 62.4°F respectively.

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

Precipitation total in January for Marina di Grosseto is 0.9 in.

The average wind speed in January is 9.0 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 Marina di Grosseto in January is 5.2 hours.