Measurements:
°C
°F
Trieste
100°F
E 4 mph
Feels like: 102°F
Precip: 1%
World Resorts Italy Trieste Weather

Trieste Sea Water Temperature

Current Sea Water Temperature:
+86.0°F
Maximum Sea Water Temperature in August: 88.8°F
Minimum Sea Water Temperature in August: 76.2°F
Average water temperature in August: 81.4°F

Sea Water Temperature for the Last 10 Days:

August 01 86.0°F July 27 80.6°F
July 31 85.0°F July 26 81.0°F
July 30 83.6°F July 25 80.4°F
July 29 82.8°F July 24 79.6°F
July 28 81.4°F July 23 80.2°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Trieste was 82.8°F. The maximum and minimum values were 79.6°F and 87.4°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 82.3 °F
Warmest sea temperature:
August 81.5 °F
July 81.3 °F
September 76.4 °F
The most cold months:
January 44.1 °F
December 46.9 °F
February 47.5 °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
Baia Domizia +102
Bari +94
Bibione +108
Florence +104
Genoa +90
Lido di Jesolo +98
Naples +92
Palermo +94
Rimini +92
Rome +104
Sanremo +86
Scalea +94
Sicily +104
Tropea +88
Venice +98
24 Hours Weather Forecast
Trieste
Local time: 16:24
01 aug, saturday
1800 96°F
E
3 mph
2100 82°F
SW
4 mph
02 aug, sunday
0000 78°F
W
5 mph
0300 76°F
W
6 mph
0600 74°F
W
10 mph
0900 90°F
SW
9 mph
1200 100°F
SW
9 mph
1500 102°F
SW
6 mph