Weather in Koper in Autumn
| September | October | November | ||||
| Average day temperature: | 75.0°F | 65.5°F | 55.3°F | |||
| Average night temperature: | 59.8°F | 52.8°F | 45.6°F | |||
| Sea water temperature: | 73.7°F | 67.3°F | 61.3°F | |||
| Number of sunny days: | 18 days | 14 days | 12 days | |||
| Day length: | 11.8 - 13.3 h. | 10.2 - 11.7 h. | 9.0 - 10.1 h. | |||
| Number of rainy days: | 6 days | 6 days | 6 days | |||
| Precipitation totals: | 4.3 in. | 3.7 in. | 4.3 in. | |||
Day & Night air temperature, °F
September
October
November
0
12
24
36
48
60
72
84
96
55.0
66.3
75.5
45.5
53.5
60.7
| Day temperature | Night temperature |
Sea water temperature, °F
September
October
November
0
12
24
36
48
60
72
84
96
61.3
67.3
73.7
Precipitation total, in.
September
October
November
0.0
0.8
1.6
2.4
3.2
4.0
4.8
5.5
4.6
3.3
4.6
Sunny, partly cloudy and cloudy days
September
October
November
0
5
10
15
20
25
30
35
13
9
6
7
8
7
10
14
18
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
September
October
November
0.0
1.0
2.0
3.1
4.1
5.1
6.1
7.1
6
5.4
5.5
Average sunny hours
September
October
November
0
1
2
3
4
5
6
7
8
9
5
6.3
8.3
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Koper
Koper on a weather map
Leaflet | Tiles © Esri
Places in Slovenia:
Name
°F
24 Hours Forecast
Koper
Local time: 10:27
April 01, tuesday
1200
57°F
SW
19 mph
19 mph
1500
55°F
SW
22 mph
22 mph
1800
54°F
SW
19 mph
19 mph
2100
54°F
SW
21 mph
21 mph
April 02, wednesday
0000
54°F
SW
19 mph
19 mph
0300
54°F
SW
16 mph
16 mph
0600
52°F
SW
8 mph
8 mph
0900
57°F
SW
11 mph
11 mph
