Average sea water temperature in September:
+73.9°F
| Minimum sea water temperature in September: | 82.6°F |
| Maximum sea water temperature in September: | 68.7°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 77.1°F. The highest and lowest sea temperatures during the month were 81.7°F and 72.9°F.
Monthly sea water temperature in Trieste, °F
Which Italy resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Cefalu | 82.7°F | 79.9°F |
| Sicily | 82.7°F | 79.6°F |
| Mondello | 82.4°F | 80.1°F |
| Avola | 82.1°F | 79.7°F |
| Letojanni | 82.1°F | 78.9°F |
| Taormina | 82.1°F | 79.1°F |
| Giardini Naxos | 82.0°F | 79.1°F |
| Catania | 82.0°F | 79.5°F |
| Soverato | 81.9°F | 79.2°F |
| Fontane Bianche | 81.9°F | 79.6°F |
| Catanzaro | 81.8°F | 78.9°F |
| Sirakuzy | 81.8°F | 79.7°F |
| San Vito Lo Capo | 81.7°F | 79.0°F |
| Santa Maria al Bagno | 81.7°F | 78.3°F |
| Gallipoli | 81.7°F | 78.3°F |
| Tropea | 81.6°F | 79.4°F |
| Santa Maria di Leuca | 81.5°F | 78.2°F |
| Pizzo | 81.4°F | 79.0°F |
| Palermo | 81.4°F | 79.5°F |
| Capo Vaticano | 81.3°F | 79.2°F |
Best time for vacation in Trieste
Trieste on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Trieste
Local time: 21:18
October 05, monday
0000

55°F
W
7 mph
7 mph
0300

54°F
W
6 mph
6 mph
0600

52°F
W
6 mph
6 mph
0900

59°F
W
6 mph
6 mph
1200

70°F
W
1 mph
1 mph
1500

72°F
E
4 mph
4 mph
1800

64°F
S
2 mph
2 mph
2100

57°F
SW
5 mph
5 mph



























