Average sea water temperature in September:
+73.7°F
| Minimum sea water temperature in September: | 82.6°F |
| Maximum sea water temperature in September: | 68.9°F |
Daily sea water temperature in September, °F
Show year:
2024
2023
2022
The average sea water temperature in September of 2024 was 75.5°F. The highest and lowest sea temperatures during the month were 82.6°F and 68.9°F.
Monthly sea water temperature in Koper, °F
Which Slovenia resorts have warmest sea in September?
| Place name | September 2024 | September 2023 |
|---|---|---|
| Portoroz | 75.9°F | 75.5°F |
| Piran | 75.9°F | 75.5°F |
| Strunjan | 75.8°F | 75.4°F |
| Isola | 75.6°F | 75.3°F |
| Koper | 75.5°F | 75.5°F |
| Cerkno | 74.6°F | 74.3°F |
| Bohinjsko Jezero | 74.5°F | 74.1°F |
| Dolenjske Toplice | 72.0°F | 73.8°F |
Best time for vacation in Koper
Koper on a weather map
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 02:50
December 22, sunday
0300
32°F
NW
2 mph
2 mph
0600
32°F
NW
4 mph
4 mph
0900
34°F
NW
4 mph
4 mph
1200
45°F
N
6 mph
6 mph
1500
45°F
N
6 mph
6 mph
1800
41°F
S
3 mph
3 mph
2100
37°F
NW
10 mph
10 mph
December 23, monday
0000
36°F
SW
15 mph
15 mph
