The highest day temperature in January 2025 was 56°F. The lowest night temperature was 30°F. The average values for day and night temperatures during January were 46.5°F и 39.2°F respectivly.

The average sea surface temperature in January 2025 for Trieste was 49.9°F. The maximum and minimum values were 48.6°F and 51.0°F respectively.

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

Precipitation total in January for Trieste is 2.6 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 5.5 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 Trieste in January is 5.0 hours.