Koper Weather: September
 |
Average Day Temperature: | 77.8°F |
|
Average Night Temperature: | 60.8°F |
|
Sea Water Temperature: | 76.4°F |
|
Number of Sunny Days: | 18 days |
| Sunshine Hours: | 11.8 - 13.3 hours | |
|
Number of Rainy Days: | 6 days |
| Precipitation Totals: | 4.3 in | |
| detailed information | ||
forecast
| Koper |
Temperature
| Koper |
Air Temperature in September, °F
The highest day temperature in September 2024 was 95°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 76.3°F и 62.1°F respectivly.
Koper Water Sea Temperature in September, °F
The average sea surface temperature in September 2024 for Koper was 78.3°F. The maximum and minimum values were 71.0°F and 86.2°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Koper is 4.3 in. It makes september one of the most rainy months of the year.
The average wind speed in September is 5.7 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Koper in September is 8.9 hours.
Koper on the Weather Map
| Bled |  |
+28 |
| Bohinjsko Jezero | |
+28 |
| Bovec | |
+32 |
| Cerkno | |
+28 |
| Dolenjske Toplice | |
+42 |
| Isola |  |
+42 |
| Koper | |
+42 |
| Kranjska Gora | |
+28 |
| Ljubljana | |
+38 |
| Maribor | |
+40 |
| Piran | |
+42 |
| Portoroz | |
+42 |
| Rogaska Slatina | |
+38 |
| Rogla | |
+36 |
| Strunjan | |
+42 |
| 1200 |  |
42°F | N 6 mph |
| 1500 | |
44°F | N 6 mph |
| 1800 |  |
40°F | SW 3 mph |
| 2100 | |
38°F | NW 13 mph |
| 0000 |  |
34°F | SW 12 mph |
| 0300 | |
34°F | SW 17 mph |
| 0600 | |
34°F | SW 16 mph |
| 0900 | |
34°F | S 7 mph |