Measurements:
°C
°F
Trieste
36°F
W 5 mph
Feels like: 30°F
Precip: 0%
World Resorts Italy Trieste Weather

Trieste Sea Water Temperature

Current Sea Water Temperature:
+49.8°F
Maximum Sea Water Temperature in February: 52.0°F
Minimum Sea Water Temperature in February: 42.8°F
Average water temperature in February: 48.5°F

Sea Water Temperature for the Last 10 Days:

February 17 49.8°F February 12 49.8°F
February 16 50.2°F February 11 50.0°F
February 15 49.6°F February 10 49.8°F
February 14 49.6°F February 09 48.8°F
February 13 49.4°F February 08 49.2°F

When is the Warmest Sea for Trieste?

According to our data for the last three years for Trieste the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Trieste was 79.4°F. The maximum and minimum values were 77.0°F and 81.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Trieste was 81.7°F. The maximum and minimum values were 79.2°F and 85.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Trieste was 78.0°F. The maximum and minimum values were 75.4°F and 81.0°F respectively.

Best Time to Visit Trieste
The most sunny months:
August 23 days
July 21 days
June 19 days
The most warm months:
August 88.1 °F
July 87.7 °F
June 82.2 °F
Warmest sea temperature:
August 81.5 °F
July 81.2 °F
September 76.4 °F
The most cold months:
January 44.1 °F
December 46.9 °F
February 47.3 °F
The most rainy months:
May 7 days
November 6 days
September 6 days
The most windy months:
February 6 mph
March 6 mph
November 6 mph

Trieste on the Weather Map

Italy Resorts:
NAME
Amalfi +42
Bari +48
Cagliari +48
Catania +44
Florence +42
Genoa +40
Lido di Jesolo +40
Naples +50
Palermo +52
Reggio di Calabria +52
Rimini +44
Rome +40
Sicily +36
Tropea +50
Venice +40
24 Hours Weather Forecast
Trieste
Local time: 07:20
18 feb, wednesday
0900 42°F
W
4 mph
1200 50°F
W
2 mph
1500 52°F
NE
4 mph
1800 44°F
N
4 mph
2100 42°F
NW
6 mph
19 feb, thursday
0000 44°F
W
3 mph
0300 44°F
W
3 mph
0600 46°F
NW
4 mph