Koper (Slovenia) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 1° Celsius;
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 1° Celsius; -
Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 2° Celsius; -
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 7° Celsius;
-
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 7° Celsius; -
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 4° Celsius;
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 4° Celsius;
-
Maximum daytime temperature: 7° Celsius; Minimum nighttime temperature: 2° Celsius;
Maximum daytime temperature: 7° Celsius; Minimum nighttime temperature: 2° Celsius;
-
Maximum daytime temperature: 4° Celsius; Minimum nighttime temperature: 1° Celsius;
Maximum daytime temperature: 4° Celsius; Minimum nighttime temperature: 1° Celsius;
Clear changing to partly cloudy by nighttime.
Sunrise:
Sunset:
L UV
No pollution data.
No pollen data.
7 day forecast for Koper
Today (29 December 2025)
| Time |
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
 |
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
6°
|
5°
|
4°
|
4°
|
4°
|
4°
|
3°
|
| Feels like temperature (°C) |
3°
|
2°
|
1°
|
1°
|
1°
|
0°
|
1°
|
| Wind direction and speed |
ENE
9
|
ENE
9
|
E
9
|
E
8
|
E
8
|
ESE
8
|
SE
7
|
| Wind gust (mph) |
17
|
17
|
16
|
16
|
16
|
14
|
13
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
50%
|
55%
|
56%
|
56%
|
57%
|
59%
|
60%
|
| UV | - | - | - | - | - | - | - |
Wednesday (30 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
 |
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
3°
|
3°
|
2°
|
2°
|
2°
|
2°
|
3°
|
3°
|
3°
|
3°
|
4°
|
5°
|
5°
|
5°
|
6°
|
6°
|
5°
|
4°
|
3°
|
3°
|
2°
|
3°
|
3°
|
4°
|
| Feels like temperature (°C) |
1°
|
0°
|
-1°
|
0°
|
-1°
|
0°
|
0°
|
0°
|
0°
|
1°
|
2°
|
3°
|
4°
|
4°
|
4°
|
4°
|
3°
|
2°
|
2°
|
1°
|
1°
|
1°
|
1°
|
2°
|
| Wind direction and speed (mph) |
SE
6
|
SSE
5
|
SSE
5
|
SSE
4
|
ESE
5
|
ESE
5
|
ESE
5
|
SE
6
|
SE
6
|
SE
6
|
SE
6
|
SE
5
|
SSE
4
|
SSE
4
|
SSE
4
|
SSE
4
|
S
4
|
S
4
|
SSW
4
|
SSW
4
|
SSW
4
|
SSW
4
|
SSW
4
|
WSW
4
|
| Wind gust (mph) |
11
|
10
|
10
|
9
|
9
|
10
|
10
|
10
|
10
|
11
|
12
|
12
|
11
|
10
|
9
|
9
|
8
|
8
|
8
|
8
|
8
|
8
|
8
|
8
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
62%
|
66%
|
69%
|
73%
|
73%
|
71%
|
70%
|
70%
|
71%
|
64%
|
61%
|
56%
|
54%
|
56%
|
56%
|
59%
|
74%
|
79%
|
77%
|
82%
|
82%
|
83%
|
81%
|
82%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
Thursday (31 December 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
30%
|
60%
|
60%
|
70%
|
80%
|
| Temperature (°C) |
4°
|
4°
|
5°
|
5°
|
5°
|
4°
|
4°
|
4°
|
4°
|
5°
|
7°
|
8°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
| Feels like temperature (°C) |
2°
|
2°
|
3°
|
3°
|
3°
|
3°
|
2°
|
2°
|
2°
|
4°
|
6°
|
7°
|
7°
|
7°
|
7°
|
7°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
5°
|
| Wind direction and speed (mph) |
W
5
|
W
5
|
W
5
|
W
5
|
WNW
4
|
W
4
|
W
4
|
WSW
4
|
SW
4
|
SW
3
|
WSW
3
|
WSW
4
|
W
4
|
W
5
|
W
5
|
WSW
5
|
WSW
6
|
SW
7
|
SW
8
|
SSW
8
|
SSW
8
|
SSW
9
|
SSW
9
|
SSW
9
|
| Wind gust (mph) |
9
|
9
|
9
|
9
|
8
|
8
|
8
|
7
|
8
|
8
|
9
|
10
|
10
|
11
|
11
|
11
|
13
|
14
|
15
|
15
|
16
|
18
|
17
|
18
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
G
|
G
|
M
|
M
|
M
|
| Humidity |
82%
|
79%
|
79%
|
80%
|
79%
|
79%
|
82%
|
83%
|
84%
|
83%
|
72%
|
65%
|
63%
|
65%
|
62%
|
64%
|
71%
|
74%
|
78%
|
83%
|
87%
|
90%
|
92%
|
93%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
Friday (1 January 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
80%
|
60%
|
60%
|
50%
|
60%
|
60%
|
50%
|
40%
|
40%
|
40%
|
60%
|
60%
|
60%
|
50%
|
50%
|
50%
|
50%
|
50%
|
40%
|
40%
|
40%
|
50%
|
50%
|
40%
|
| Temperature (°C) |
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
9°
|
9°
|
8°
|
9°
|
9°
|
9°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
| Feels like temperature (°C) |
5°
|
5°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
7°
|
7°
|
8°
|
7°
|
8°
|
8°
|
8°
|
7°
|
| Wind direction and speed (mph) |
SW
9
|
SW
9
|
SW
8
|
SW
8
|
SW
6
|
SW
6
|
SW
6
|
SSW
7
|
SW
7
|
SW
7
|
WSW
7
|
WSW
7
|
WSW
6
|
SW
5
|
WSW
5
|
SW
5
|
SW
4
|
SW
4
|
SSW
4
|
S
5
|
SSW
4
|
SSW
4
|
SSW
4
|
SSW
4
|
| Wind gust (mph) |
17
|
17
|
15
|
15
|
13
|
13
|
13
|
12
|
14
|
14
|
15
|
14
|
13
|
13
|
12
|
11
|
10
|
9
|
10
|
10
|
10
|
9
|
9
|
8
|
| Visibility (description) |
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
93%
|
93%
|
93%
|
94%
|
95%
|
95%
|
94%
|
94%
|
94%
|
92%
|
92%
|
92%
|
92%
|
92%
|
92%
|
92%
|
95%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
Saturday (2 January 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
40%
|
40%
|
40%
|
30%
|
30%
|
40%
|
40%
|
40%
|
50%
|
50%
|
50%
|
50%
|
30%
|
40%
|
40%
|
40%
|
40%
|
40%
|
50%
|
40%
|
40%
|
30%
|
30%
|
| Temperature (°C) |
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
| Feels like temperature (°C) |
7°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
7°
|
6°
|
7°
|
6°
|
5°
|
5°
|
4°
|
| Wind direction and speed (mph) |
S
4
|
S
4
|
SSE
4
|
SSE
4
|
SE
4
|
ESE
4
|
ESE
4
|
ESE
5
|
ESE
6
|
ESE
6
|
ESE
7
|
ESE
7
|
E
7
|
NE
6
|
ENE
7
|
ENE
8
|
E
7
|
E
6
|
E
6
|
ENE
6
|
ENE
7
|
ENE
8
|
ENE
8
|
ENE
7
|
| Wind gust (mph) |
8
|
9
|
10
|
9
|
9
|
9
|
9
|
12
|
12
|
13
|
16
|
15
|
15
|
13
|
16
|
15
|
13
|
13
|
13
|
15
|
18
|
18
|
16
|
16
|
| Visibility (description) |
M
|
G
|
G
|
M
|
G
|
M
|
G
|
M
|
M
|
G
|
G
|
G
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
96%
|
96%
|
97%
|
96%
|
96%
|
97%
|
96%
|
96%
|
95%
|
94%
|
92%
|
91%
|
91%
|
88%
|
86%
|
85%
|
89%
|
91%
|
92%
|
90%
|
87%
|
88%
|
84%
|
86%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
Sunday (3 January 2026)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
40%
|
30%
|
40%
|
40%
|
30%
|
30%
|
30%
|
20%
|
| Temperature (°C) |
6°
|
6°
|
5°
|
5°
|
5°
|
7°
|
6°
|
5°
|
4°
|
| Feels like temperature (°C) |
4°
|
3°
|
2°
|
2°
|
2°
|
4°
|
3°
|
2°
|
1°
|
| Wind direction and speed (mph) |
ENE
8
|
ENE
8
|
ENE
9
|
ENE
8
|
ENE
9
|
ENE
8
|
ENE
9
|
NE
8
|
NE
8
|
| Wind gust (mph) |
16
|
19
|
19
|
20
|
19
|
22
|
18
|
18
|
18
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
80%
|
78%
|
78%
|
74%
|
67%
|
71%
|
75%
|
75%
|
| UV | - | - | - | 1 | 1 | 1 | 1 | - | - |
Monday (4 January 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
30%
|
30%
|
20%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
3°
|
3°
|
3°
|
3°
|
4°
|
3°
|
2°
|
2°
|
| Feels like temperature (°C) |
0°
|
-1°
|
-1°
|
-1°
|
0°
|
-1°
|
-2°
|
-2°
|
| Wind direction and speed (mph) |
ENE
8
|
ENE
8
|
ENE
9
|
ENE
11
|
NE
11
|
ENE
12
|
ENE
11
|
ENE
11
|
| Wind gust (mph) |
18
|
23
|
22
|
25
|
26
|
25
|
25
|
22
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
77%
|
80%
|
78%
|
63%
|
58%
|
63%
|
64%
|
63%
|
| UV | - | - | 1 | 1 | 1 | 1 | - | - |
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Forecast for 5pm (UTC+1) Tuesday
Updated 12:27 (UTC) on Tue 30 Dec 2025
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