The highest day temperature in January 2026 was 57°F. The lowest night temperature was 26°F. The average values for day and night temperatures during January were 49.1°F и 42.7°F respectivly.

The average sea surface temperature in January 2026 for Split was 57.0°F. The maximum and minimum values were 55.2°F and 59.0°F respectively.

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

Precipitation total in January for Split is 2.8 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 9.2 mph. It makes January one of the most windy months of the year for Split.

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 Split in January is 5.3 hours.