Triest Weather & Climate: Best Time to Visit
The climate in Triest, Friuli Venezia Giulia, Italy, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in August to 8°C (46°F) in January.
The city receives considerable rain/snowfall, with around 1484 mm (58 in) annually. November is the wettest month. The most sunshine falls in July, with an average of 9.7 hours of daily sunshine.
Monthly Temperature in Triest
In Triest, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in August to a chilly 8°C (46°F) in the coolest month, January.
Nights vary from 19°C (66°F) in August to around 2°C (36°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Triest
Triest experiences significant rain/snowfall throughout the year, averaging 1484 mm (58 in) of precipitation annually. The climate in Triest shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 189 mm (7.4 in) of precipitation over 13 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 81 mm (3.2 in) of rainfall over 12 rainy days. For more details, please visit our Triest Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Triest
For those who appreciate different seasons, Triest serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.7 hours of sunshine daily, and embrace the darker days in December, offering only 2.8 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Triest
The mean water temperature over the year ranges from 9°C (48°F) in February to 24°C (75°F) in August.
Water temperature over the year
Humidity in Triest by Month
The relative humidity is high throughout the year in Triest.
The city experiences its highest humidity in October, reaching 69%. In March, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Triest 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Triest
The best time to visit Triest is during May, June, July and August, when the weather provides comfortable temperatures between 21°C (70°F) and 28°C (82°F). With rainfall of 81 mm (3.2 in) to 119 mm (4.7 in), you can expect pleasant weather during your visit in these months.Be prepared for heavier rainfall during September, October and November, the wettest period of the year. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
