Trieste weather live forecast

Today's maximum temperature in Trieste is expected to be 21°C. Select a day from the live weather forecast for Trieste, Italy for more weather parameters.

Friday
11th Sep
21

20

5

3
Saturday
12th Sep
24

19

12

5
Sunday
13th Sep
24

19

9

5
Monday
14th Sep
25

20

10

5
Tuesday
15th Sep
25

21

9

5

5-day weather forecast updated at 04:00 on Thursday 10th September 2026 GMT

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The 5-day weather forecast for Italy (Trieste) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Trieste weather forecast by day

Below are the detailed weather forecasts for Trieste for the next 5 days.

Trieste weather for Friday 11th September 2026

Expect isolated thunderstorms in Trieste, Italy with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 16 kph from the north-east.

21
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
3
UV index (Moderate)
74
% chance of some rain
<20
mm of rainfall expected
21
°C wind chill
16
kph wind from NE

Trieste weather for Saturday 12th September 2026

Expect scattered clouds in Trieste, Italy with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-east.

24
°C maximum temperature
19
°C minimum temperature
scattered clouds
12
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
15
kph wind from NE

Trieste weather for Sunday 13th September 2026

Expect scattered clouds in Trieste, Italy with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the east.

24
°C maximum temperature
19
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
24
°C wind chill
9
kph wind from E

Trieste weather for Monday 14th September 2026

Expect scattered clouds in Trieste, Italy with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the east.

25
°C maximum temperature
20
°C minimum temperature
scattered clouds
10
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
6
kph wind from E

Trieste weather for Tuesday 15th September 2026

Expect scattered clouds in Trieste, Italy with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the east.