Trieste Weather and Climate: A Comprehensive Guide
The temperature in Trieste can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It also experiences much rain/snowfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Trieste. Average daytime temperatures reach a comfortable 28°C in August. In January, the coolest month of the year, temperatures drop to a chilly 8°C.
At night, you can expect cooler temperatures, with averages dropping to around 2°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Trieste has a relatively rain/snowy climate with high precipitation levels, averaging 1494 mm of rain/snowfall annually. Trieste can be quite wet during November, receiving approximately 188 mm of precipitation over 13 rainy days. In contrast July, experiences much drier conditions, with 83 mm of rainfall, spread across 12 rainy days. For more details, please visit our Trieste Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Trieste can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.7 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.8 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year ranges from 9°C in February to 24°C in August.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Trieste.
The city experiences its highest humidity in October, reaching 69%. In March, the humidity drops to its lowest level at 61%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
broken clouds and rain broken clouds and small chance of slight rain partly cloudy and no rainForecast for Trieste
5 m/s
3 m/s
3 m/s
The best time of year to visit Trieste in Italy
During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in September, October and November.
August has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 8°C.
November tops the wettest month list with 188 mm of rainfall.
July is the driest month with 83 mm of precipitation.
July is the sunniest month with an average of 290 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
