Measurements:
°C
°F
Trieste
50°F
W 7 mph
Feels like: 48°F
Precip: 4%
World Resorts Italy Trieste Weather

Trieste Sea Water Temperature

Current Sea Water Temperature:
+75.6°F
Maximum Sea Water Temperature in October: 78.6°F
Minimum Sea Water Temperature in October: 62.2°F
Average water temperature in October: 69.2°F

Sea Water Temperature for the Last 10 Days:

October 03 75.6°F September 28 75.8°F
October 02 76.2°F September 27 75.4°F
October 01 76.4°F September 26 76.0°F
September 30 76.8°F September 25 77.0°F
September 29 76.2°F September 24 76.0°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Trieste was 84.8°F. The maximum and minimum values were 83.0°F and 88.2°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Trieste was 80.2°F. The maximum and minimum values were 75.4°F and 85.2°F respectively.

Best Time to Visit Trieste
The most sunny months:
August 22 days
July 21 days
June 19 days
The most warm months:
August 88.2 °F
July 87.7 °F
June 82.3 °F
Warmest sea temperature:
August 81.7 °F
July 81.3 °F
September 76.6 °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
F°
Amalfi +62
Bari +72
Bibione +54
Catania +68
Florence +64
Genoa +50
Lido di Jesolo +58
Naples +72
Palermo +58
Rimini +58
Rome +64
Scalea +48
Sicily +64
Tropea +68
Venice +58
24 Hours Weather Forecast
Trieste
Local time: 04:56
04 oct, sunday
0600 50°F
W
7 mph
0900 60°F
W
6 mph
1200 74°F
E
1 mph
1500 74°F
E
5 mph
1800 64°F
E
2 mph
2100 58°F
SW
5 mph
05 oct, monday
0000 54°F
W
6 mph
0300 54°F
W
6 mph