The highest day temperature in January 2026 was 62°F. The lowest night temperature was 46°F. The average values for day and night temperatures during January were 55.9°F и 55.1°F respectivly.

The average sea surface temperature in January 2026 for Ischia was 62.1°F. The maximum and minimum values were 61.0°F and 64.0°F respectively.

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

Precipitation total in January for Ischia is 3.1 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 12.1 mph. It makes January the most windy month of the year for Ischia.

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 Ischia in January is 5.5 hours.