Sønderborg monthly weather forecast
Monthly weather forecast for Sønderborg. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed
21 October 2026, Wednesday
+9°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
16.2
84%
1011
01:00
+10°C
20.2
83%
1010
02:00
+10°C
22.7
72%
1010
03:00
+9°C
14
73%
1009
04:00
+9°C
15.8
83%
1008
05:00
+9°C
16.9
87%
1008
06:00
+9°C
17.6
80%
1007
07:00
+9°C
19.1
74%
1007
08:00
+10°C
24.1
76%
1006
09:00
+10°C
27.4
83%
1006
10:00
+10°C
27.4
82%
1006
11:00
+9°C
24.1
86%
1006
12:00
+9°C
21.2
88%
1007
13:00
+10°C
19.1
92%
1006
14:00
+10°C
17.3
93%
1006
15:00
+10°C
14.4
94%
1006
16:00
+10°C
12.2
95%
1006
17:00
+10°C
10.4
96%
1006
18:00
+11°C
12.2
96%
1005
19:00
+11°C
17.6
95%
1005
20:00
+11°C
16.6
95%
1005
21:00
+10°C
15.8
95%
1005
22:00
+10°C
15.1
95%
1005
23:00
+10°C
13.7
96%
1005
22 October 2026, Thursday
+9°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
12.6
97%
1004
01:00
+10°C
11.2
96%
1005
02:00
+10°C
16.2
95%
1005
03:00
+10°C
18.4
95%
1005
04:00
+10°C
19.4
95%
1005
05:00
+10°C
22
93%
1005
06:00
+10°C
22.7
92%
1005
07:00
+10°C
24.8
91%
1005
08:00
+9°C
26.6
90%
1006
09:00
+9°C
25.6
89%
1007
10:00
+9°C
27
89%
1007
11:00
+10°C
25.6
89%
1007
12:00
+10°C
25.9
88%
1008
13:00
+11°C
25.2
85%
1008
14:00
+12°C
25.9
83%
1009
15:00
+12°C
20.2
80%
1009
16:00
+12°C
22.7
81%
1009
17:00
+11°C
23.4
84%
1010
18:00
+11°C
22.7
87%
1010
19:00
+10°C
22.7
88%
1010
20:00
+10°C
22.7
90%
1010
21:00
+10°C
22
92%
1011
22:00
+10°C
22.3
94%
1011
23:00
+10°C
20.5
95%
1011
23 October 2026, Friday
+8°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
15.1
96%
1012
01:00
+9°C
11.9
97%
1012
02:00
+9°C
12.2
98%
1012
03:00
+8°C
10.8
99%
1012
04:00
+8°C
6.8
100%
1012
05:00
+8°C
9.4
100%
1012
06:00
+8°C
9.7
100%
1012
07:00
+8°C
5.8
100%
1011
08:00
+8°C
10.4
100%
1011
09:00
+8°C
14
100%
1011
10:00
+8°C
12.2
100%
1011
11:00
+9°C
15.1
99%
1010
12:00
+10°C
18.4
97%
1010
13:00
+10°C
22
94%
1009
14:00
+11°C
26.6
86%
1008
15:00
+11°C
27.4
87%
1007
16:00
+11°C
28.3
86%
1006
17:00
+11°C
27.1
88%
1005
18:00
+11°C
26.6
90%
1004
19:00
+11°C
26
91%
1003
20:00
+11°C
25.8
90%
1002
21:00
+11°C
23.2
91%
1001
22:00
+11°C
23.8
88%
1001
23:00
+11°C
24.3
90%
1000
24 October 2026, Saturday
+9°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
26.9
90%
999
01:00
+11°C
28.2
85%
999
02:00
+11°C
24.9
85%
998
03:00
+11°C
23.3
84%
997
04:00
+11°C
19.4
83%
997
05:00
+11°C
16.7
85%
997
06:00
+11°C
13.8
85%
997
07:00
+10°C
8.2
93%
997
08:00
+10°C
5.2
95%
997
09:00
+10°C
2.3
93%
998
10:00
+10°C
1.8
94%
998
11:00
+11°C
10.1
95%
999
12:00
+11°C
14.2
89%
1000
13:00
+12°C
14
78%
1000
14:00
+13°C
15.9
77%
1000
15:00
+12°C
24.8
87%
1001
16:00
+12°C
26.5
86%
1001
17:00
+11°C
25.9
83%
1002
18:00
+11°C
22.4
78%
1003
19:00
+11°C
23.3
72%
1003
20:00
+10°C
25.3
76%
1003
21:00
+10°C
26.2
76%
1002
22:00
+10°C
28.1
77%
1001
23:00
+9°C
30.5
78%
1000
25 October 2026, Sunday
+8°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
32.6
78%
998
01:00
+9°C
34.6
77%
997
02:00
+9°C
36.9
79%
994
03:00
+9°C
41
82%
991
04:00
+9°C
45.5
87%
988
05:00
+8°C
46.6
92%
986
06:00
+9°C
41.4
94%
984
07:00
+9°C
34.4
96%
983
08:00
+9°C
30.8
95%
983
09:00
+10°C
31.1
90%
983
10:00
+10°C
32.6
84%
984
11:00
+11°C
34
80%
984
12:00
+11°C
34.4
81%
984
13:00
+11°C
34
85%
984
14:00
+11°C
33.2
86%
984
15:00
+11°C
32.7
78%
986
16:00
+11°C
34.2
69%
987
17:00
+11°C
35.1
63%
989
18:00
+11°C
31.8
65%
991
19:00
+9°C
26.5
71%
992
20:00
+9°C
23.3
75%
994
21:00
+8°C
22.8
77%
995
22:00
+9°C
23.3
77%
996
23:00
+9°C
23.7
76%
997
26 October 2026, Monday
+7°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
23.3
76%
998
01:00
+9°C
22.9
76%
999
02:00
+9°C
22.2
76%
1000
03:00
+8°C
21.7
78%
1001
04:00
+8°C
20.9
80%
1002
05:00
+8°C
19.8
81%
1003
06:00
+7°C
17.9
81%
1004
07:00
+7°C
15.8
81%
1005
08:00
+8°C
14.4
79%
1006
09:00
+9°C
14.5
75%
1007
10:00
+10°C
15.2
70%
1008
11:00
+11°C
16.3
66%
1009
12:00
+12°C
18
64%
1009
13:00
+12°C
19.9
64%
1010
14:00
+12°C
20.8
65%
1010
15:00
+12°C
19.1
69%
1011
16:00
+12°C
16.7
74%
1011
17:00
+11°C
15.9
78%
1011
18:00
+11°C
17.2
80%
1012
19:00
+11°C
19.3
80%
1012
20:00
+10°C
20.6
80%
1013
21:00
+10°C
20.5
82%
1013
22:00
+10°C
20
84%
1012
23:00
+10°C
19.7
85%
1012
27 October 2026, Tuesday
+10°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
21.3
83%
1012
01:00
+10°C
22.2
84%
1012
02:00
+10°C
23
84%
1011
03:00
+10°C
23.6
86%
1011
04:00
+10°C
23.8
87%
1011
05:00
+10°C
23.7
88%
1011
06:00
+10°C
23.6
89%
1010
07:00
+10°C
23.8
90%
1010
08:00
+11°C
24
90%
1010
09:00
+11°C
24.6
89%
1010
10:00
+12°C
25.5
87%
1009
11:00
+13°C
26.7
84%
1009
12:00
+14°C
27.9
82%
1009
13:00
+14°C
28.9
81%
1009
14:00
+15°C
29.3
80%
1009
15:00
+15°C
29.3
81%
1009
16:00
+15°C
29.1
83%
1009
17:00
+14°C
28.6
86%
1009
18:00
+14°C
27.9
89%
1009
19:00
+14°C
27.1
92%
1009
20:00
+13°C
26.4
93%
1009
21:00
+13°C
25.3
94%
1009
22:00
+13°C
23.8
92%
1010
23:00
+12°C
22.1
91%
1010
28 October 2026, Wednesday
+10°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
20.5
90%
1011
01:00
+11°C
19.3
88%
1011
02:00
+11°C
18.6
87%
1012
03:00
+11°C
18.5
87%
1012
04:00
+11°C
19
87%
1012
05:00
+10°C
19.7
87%
1013
06:00
+10°C
20.5
87%
1013
07:00
+10°C
21.4
87%
1013
08:00
+10°C
22
87%
1013
09:00
+10°C
22.6
87%
1014
10:00
+11°C
23
88%
1014
11:00
+11°C
23.6
89%
1014
12:00
+12°C
23.9
90%
1014
13:00
+12°C
24.3
91%
1014
14:00
+12°C
24
90%
1015
15:00
+12°C
23.3
89%
1015
16:00
+12°C
22.6
86%
1016
17:00
+12°C
21.6
84%
1017
18:00
+11°C
20.6
81%
1018
19:00
+11°C
19.5
80%
1019
20:00
+11°C
18.5
79%
1020
21:00
+10°C
17.2
79%
1020
22:00
+10°C
15.5
82%
1021
23:00
+10°C
13.8
84%
1022
29 October 2026, Thursday
+8°C / +13°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
12.4
87%
1022
01:00
+9°C
11.1
90%
1023
02:00
+9°C
10.2
92%
1024
03:00
+8°C
9.6
92%
1024
04:00
+8°C
9.4
93%
1024
05:00
+8°C
9.3
94%
1025
06:00
+8°C
9
93%
1025
07:00
+8°C
9.2
92%
1026
08:00
+8°C
9.2
91%
1026
09:00
+9°C
9.4
88%
1026
10:00
+10°C
9.9
84%
1027
11:00
+11°C
10.5
80%
1027
12:00
+12°C
11
76%
1027
13:00
+13°C
11.4
73%
1028
14:00
+13°C
11.4
72%
1028
15:00
+13°C
10.8
73%
1028
16:00
+13°C
9.8
76%
1028
17:00
+12°C
8.7
80%
1029
18:00
+11°C
7.3
84%
1029
19:00
+11°C
6.3
89%
1029
20:00
+10°C
5.4
92%
1029
21:00
+9°C
4.8
94%
1029
22:00
+9°C
4.5
95%
1029
23:00
+8°C
4.3
97%
1030
30 October 2026, Friday
+6°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
4.1
98%
1030
01:00
+7°C
4
98%
1030
02:00
+7°C
3.9
99%
1030
03:00
+7°C
3.8
99%
1030
04:00
+6°C
3.6
100%
1030
05:00
+6°C
3.4
100%
1030
06:00
+6°C
3.4
100%
1030
07:00
+6°C
3.5
100%
1030
08:00
+6°C
3.8
98%
1030
09:00
+7°C
4.4
95%
1030
10:00
+8°C
5.6
91%
1030
11:00
+9°C
6.8
86%
1030
12:00
+10°C
8.2
81%
1030
13:00
+11°C
9.5
78%
1030
14:00
+12°C
10.7
76%
1030
15:00
+12°C
11.9
76%
1030
16:00
+12°C
13
78%
1030
17:00
+11°C
14.2
80%
1030
18:00
+11°C
15.3
83%
1030
19:00
+10°C
16
86%
1029
20:00
+10°C
16.5
87%
1029
21:00
+10°C
16.5
89%
1029
22:00
+10°C
16.1
90%
1029
23:00
+9°C
15.6
91%
1029
31 October 2026, Saturday
+8°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
14.8
91%
1029
01:00
+9°C
14.4
92%
1029
02:00
+9°C
14.2
92%
1029
03:00
+9°C
14.4
92%
1029
04:00
+9°C
15
93%
1028
05:00
+9°C
15.3
94%
1028
06:00
+8°C
16
94%
1028
07:00
+8°C
16.5
94%
1028
08:00
+8°C
16.8
93%
1028
09:00
+8°C
16.8
92%
1027
10:00
+9°C
16.6
90%
1027
11:00
+9°C
16.3
88%
1027
12:00
+10°C
15.9
86%
1027
13:00
+10°C
15.5
84%
1027
14:00
+10°C
14.9
84%
1027
15:00
+10°C
14.3
84%
1027
16:00
+10°C
13.6
85%
1027
17:00
+10°C
12.8
86%
1027
18:00
+10°C
12.1
88%
1027
19:00
+9°C
11.2
89%
1027
20:00
+9°C
10.4
91%
1027
21:00
+9°C
9.5
92%
1027
22:00
+8°C
8.6
93%
1027
23:00
+8°C
7.7
94%
1027
01 November 2026, Sunday
+5°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
7.1
95%
1028
01:00
+6°C
6.7
97%
1028
02:00
+6°C
6.1
97%
1028
03:00
+6°C
5.3
97%
1028
04:00
+6°C
4
97%
1028
05:00
+5°C
2.7
96%
1028
06:00
+5°C
1.3
95%
1028
07:00
+6°C
0.4
94%
1028
08:00
+6°C
0
94%
1028
09:00
+6°C
0.5
93%
1028
10:00
+7°C
1.8
92%
1029
11:00
+8°C
3.6
92%
1029
12:00
+9°C
5.1
91%
1029
13:00
+10°C
6.4
91%
1029
14:00
+11°C
7
91%
1029
15:00
+11°C
6.8
91%
1030
16:00
+11°C
6.1
91%
1030
17:00
+10°C
5.5
91%
1030
18:00
+10°C
5.5
92%
1030
19:00
+10°C
6.3
92%
1030
20:00
+9°C
7.2
92%
1030
21:00
+9°C
8.3
93%
1031
22:00
+9°C
9.3
93%
1031
23:00
+8°C
10.3
93%
1031
02 November 2026, Monday
+6°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
11.2
93%
1031
01:00
+7°C
11.9
94%
1031
02:00
+7°C
12.3
94%
1031
03:00
+7°C
12.3
95%
1031
04:00
+6°C
12
95%
1031
05:00
+6°C
11.3
96%
1031
06:00
+6°C
10.8
97%
1031
07:00
+6°C
10.6
97%
1031
08:00
+6°C
10.6
95%
1031
09:00
+6°C
11.3
93%
1031
10:00
+8°C
12.5
89%
1031
11:00
+9°C
14.2
85%
1031
12:00
+10°C
15.6
81%
1031
13:00
+11°C
16.6
78%
1031
14:00
+12°C
16.7
77%
1031
15:00
+12°C
15.6
77%
1031
16:00
+12°C
13.5
79%
1030
17:00
+11°C
11.1
81%
1030
18:00
+11°C
8.7
83%
1030
19:00
+10°C
6.6
86%
1030
20:00
+10°C
5.2
87%
1030
21:00
+10°C
4.5
88%
1030
22:00
+10°C
3.8
88%
1030
23:00
+9°C
3.2
89%
1030
03 November 2026, Tuesday
+9°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
2.8
88%
1029
01:00
+9°C
2.5
89%
1029
02:00
+9°C
2.3
89%
1029
03:00
+9°C
2.2
89%
1029
04:00
+9°C
2.4
91%
1028
05:00
+9°C
3.2
92%
1028
06:00
+9°C
4.2
93%
1028
07:00
+9°C
5.1
93%
1027
08:00
+9°C
5.7
93%
1027
09:00
+9°C
6.1
92%
1027
10:00
+9°C
6.4
89%
1026
11:00
+10°C
6.4
85%
1026
12:00
+10°C
6.1
82%
1026
13:00
+10°C
5.9
80%
1026
14:00
+10°C
5.5
79%
1026
15:00
+10°C
4.6
78%
1025
16:00
+10°C
3.3
79%
1025
17:00
+10°C
1.9
80%
1025
18:00
+9°C
1.2
82%
1024
19:00
+9°C
1.8
83%
1024
20:00
+9°C
2.3
84%
1024
21:00
+9°C
2.6
85%
1023
22:00
+9°C
3.2
86%
1023
23:00
+9°C
4.3
87%
1023
Climate Characteristics of Sønderborg
General Overview
Sønderborg features a temperate oceanic climate. Due to its relatively southern location and its position on the Baltic Sea (which is more sheltered than the North Sea), the climate here is considered one of the mildest and most pleasant in Denmark. The city enjoys less freezing winters and slightly warmer summers than the north of the country.
Summer Season (June to August)
Summer in Sønderborg is the most popular time for visiting. Daytime temperatures range between 20°C and 23°C (68-73°F). This is a perfect time for visiting Sønderborg Castle or sailing in the bay, as the water here tends to be calmer and warmer than the Danish average. The Baltic Sea breeze is soft and very pleasant.
Winter Season (December to February)
Winter is relatively mild but humid and grey. Daytime temperatures range around 3°C to 5°C (37-41°F). Due to the proximity to water, snow falls but rarely accumulates in large amounts for long. Southerly and easterly winds can occasionally bring piercing cold from the European continent.
Precipitation and Wind
Precipitation is distributed throughout the year, with autumn typically being the wettest season. Winds in Sønderborg are calmer than in West Coast cities (like Esbjerg), making outdoor activities more enjoyable during transition months.
Weather in Sønderborg by Month
January
The coldest but relatively mild month. 3°C (37°F) daytime. Cloudy skies and high humidity.
February
Wintry and cool (3°C/37°F daytime). Short days and chance of light snow or sleet.
March
Start of spring. 7°C (45°F) daytime. Temperatures rise, and the city starts coming to life.
April
Volatile (12°C/54°F daytime). Sunny days alongside sudden showers. Blooming in gardens begins.
May
A lovely month. 16°C (61°F) daytime. Temperatures are comfortable for walking, and the air is fresh.
June
Incredibly long days. 20°C (68°F) daytime. Ideal time for tours in the historical harbor and nearby beaches.
July
The warmest month. 22°C (72°F) daytime. Perfect for outdoor activities and picnics in green areas around the city.
August
Warm and pleasant (21°C/70°F daytime). Relatively rainy month but sea temperatures are at their highest.
September
Start of autumn. 17°C (63°F) daytime. Weather remains very comfortable for walking tours.
October
Autumnal and colorful. 12°C (54°F) daytime. Beautiful fall foliage around the castle and in parks.
November
Grey, humid, and cool. 7°C (45°F) daytime. Darkness falls early, and rain is more frequent.
December
Wintry and festive. 4°C (39°F) daytime. Christmas atmosphere in the old town offsets the cold.