Sønderborg monthly weather forecast
Monthly weather forecast for Sønderborg. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed
22 May 2026, Friday
+12°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
13
86%
1025
01:00
+13°C
9
88%
1025
02:00
+13°C
7.6
92%
1024
03:00
+12°C
9
94%
1024
04:00
+12°C
11.2
95%
1024
05:00
+13°C
11.2
90%
1025
06:00
+13°C
9
89%
1025
07:00
+13°C
11.2
89%
1025
08:00
+14°C
11.5
87%
1025
09:00
+15°C
11.5
86%
1026
10:00
+16°C
15.1
85%
1026
11:00
+17°C
14.8
77%
1026
12:00
+19°C
15.1
73%
1026
13:00
+20°C
15.1
69%
1026
14:00
+21°C
14.4
67%
1026
15:00
+22°C
13.3
65%
1026
16:00
+22°C
13.7
64%
1026
17:00
+22°C
13
63%
1026
18:00
+22°C
10.8
62%
1026
19:00
+22°C
11.2
63%
1026
20:00
+21°C
8.6
66%
1026
21:00
+19°C
4.7
74%
1026
22:00
+16°C
5
86%
1026
23:00
+15°C
4
89%
1026
23 May 2026, Saturday
+12°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
3.6
91%
1026
01:00
+13°C
4
91%
1026
02:00
+13°C
3.6
91%
1026
03:00
+13°C
4
93%
1026
04:00
+12°C
5.8
94%
1025
05:00
+12°C
6.8
94%
1025
06:00
+13°C
8.6
92%
1025
07:00
+15°C
7.2
88%
1025
08:00
+17°C
8.6
82%
1025
09:00
+19°C
15.1
75%
1025
10:00
+21°C
14.8
71%
1025
11:00
+23°C
15.5
66%
1024
12:00
+24°C
16.6
60%
1024
13:00
+24°C
18.4
51%
1024
14:00
+24°C
15.1
54%
1024
15:00
+24°C
16.6
56%
1024
16:00
+24°C
19.1
58%
1024
17:00
+24°C
17.6
61%
1024
18:00
+23°C
16.6
64%
1024
19:00
+22°C
14
67%
1024
20:00
+21°C
13.3
67%
1024
21:00
+19°C
11.5
70%
1024
22:00
+18°C
12.2
74%
1025
23:00
+16°C
13.3
82%
1025
24 May 2026, Sunday
+11°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
13.3
86%
1025
01:00
+13°C
12.6
86%
1025
02:00
+13°C
12.6
90%
1026
03:00
+12°C
11.9
91%
1026
04:00
+12°C
10.4
92%
1026
05:00
+11°C
9.4
93%
1026
06:00
+11°C
9
93%
1027
07:00
+12°C
10.8
90%
1027
08:00
+13°C
11.2
83%
1028
09:00
+15°C
11.2
75%
1028
10:00
+17°C
11.2
67%
1029
11:00
+18°C
11.5
62%
1029
12:00
+19°C
13.3
58%
1029
13:00
+20°C
14.4
56%
1029
14:00
+21°C
16.2
53%
1029
15:00
+21°C
17.6
52%
1029
16:00
+22°C
18
52%
1029
17:00
+21°C
18.4
49%
1029
18:00
+21°C
17.3
51%
1028
19:00
+20°C
17.3
58%
1028
20:00
+19°C
17.3
65%
1029
21:00
+17°C
16.2
68%
1029
22:00
+15°C
12.3
77%
1029
23:00
+13°C
11.4
87%
1029
25 May 2026, Monday
+11°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
11.5
93%
1029
01:00
+11°C
10.9
95%
1029
02:00
+11°C
10
95%
1029
03:00
+11°C
9.7
95%
1029
04:00
+11°C
10.3
95%
1029
05:00
+11°C
10.3
95%
1029
06:00
+11°C
10.4
94%
1029
07:00
+12°C
8.7
90%
1029
08:00
+14°C
8.9
83%
1029
09:00
+16°C
10.1
75%
1029
10:00
+18°C
11.8
70%
1029
11:00
+19°C
15.1
65%
1029
12:00
+20°C
18.3
60%
1028
13:00
+21°C
20.9
57%
1028
14:00
+22°C
22.5
58%
1028
15:00
+22°C
22.4
57%
1027
16:00
+22°C
22.2
56%
1027
17:00
+22°C
22.2
58%
1027
18:00
+21°C
22.3
63%
1026
19:00
+19°C
20.9
70%
1026
20:00
+18°C
17.6
77%
1026
21:00
+16°C
15.2
78%
1026
22:00
+15°C
14.4
83%
1026
23:00
+14°C
14.2
86%
1026
26 May 2026, Tuesday
+10°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+13°C
14.2
88%
1026
01:00
+13°C
14.2
89%
1026
02:00
+12°C
13.3
91%
1025
03:00
+12°C
13.5
91%
1025
04:00
+12°C
13.7
91%
1025
05:00
+12°C
13.7
90%
1024
06:00
+12°C
13.3
87%
1024
07:00
+13°C
12.8
84%
1024
08:00
+15°C
12.8
81%
1024
09:00
+16°C
12.7
76%
1024
10:00
+17°C
12.9
71%
1024
11:00
+18°C
13.8
66%
1024
12:00
+19°C
16.6
61%
1023
13:00
+19°C
20.4
57%
1023
14:00
+19°C
23.7
54%
1023
15:00
+19°C
26
55%
1023
16:00
+18°C
27.6
58%
1023
17:00
+16°C
28.7
60%
1022
18:00
+15°C
28.7
62%
1022
19:00
+14°C
28
64%
1022
20:00
+13°C
27.3
65%
1022
21:00
+12°C
26.6
68%
1022
22:00
+11°C
25.8
71%
1022
23:00
+10°C
25.2
74%
1022
27 May 2026, Wednesday
+9°C / +16°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
24.9
76%
1022
01:00
+10°C
24.7
78%
1022
02:00
+10°C
24.6
79%
1022
03:00
+9°C
24.1
80%
1022
04:00
+9°C
23.5
80%
1022
05:00
+9°C
23.5
79%
1022
06:00
+9°C
24.7
77%
1022
07:00
+10°C
26.9
74%
1022
08:00
+11°C
28.2
70%
1022
09:00
+12°C
27.3
63%
1022
10:00
+13°C
25.3
56%
1023
11:00
+14°C
23.5
51%
1023
12:00
+15°C
22.6
49%
1023
13:00
+16°C
22.1
48%
1023
14:00
+16°C
22.1
48%
1022
15:00
+16°C
22.8
49%
1022
16:00
+16°C
24
51%
1022
17:00
+15°C
24.6
54%
1022
18:00
+14°C
24.7
57%
1022
19:00
+13°C
24.3
60%
1022
20:00
+12°C
23.6
64%
1021
21:00
+11°C
22.1
68%
1021
22:00
+10°C
20.2
73%
1021
23:00
+10°C
18.7
77%
1021
28 May 2026, Thursday
+8°C / +16°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
18
80%
1021
01:00
+9°C
17.7
83%
1021
02:00
+8°C
17.8
84%
1021
03:00
+8°C
18
86%
1020
04:00
+8°C
18.3
87%
1020
05:00
+8°C
19
86%
1020
06:00
+9°C
20.5
81%
1020
07:00
+10°C
22.9
75%
1020
08:00
+10°C
24.9
70%
1020
09:00
+11°C
18.8
73%
1019
10:00
+12°C
18.9
69%
1019
11:00
+13°C
19.2
65%
1019
12:00
+14°C
19.5
61%
1019
13:00
+15°C
19.7
58%
1019
14:00
+16°C
19.4
56%
1019
15:00
+16°C
19
56%
1019
16:00
+16°C
18.4
57%
1019
17:00
+15°C
17.7
58%
1019
18:00
+15°C
16.8
61%
1019
19:00
+14°C
16
63%
1019
20:00
+14°C
15.3
66%
1019
21:00
+13°C
14.5
69%
1019
22:00
+12°C
13.7
74%
1019
23:00
+11°C
12.8
80%
1019
29 May 2026, Friday
+8°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
12
85%
1020
01:00
+9°C
11.4
90%
1020
02:00
+8°C
10.7
93%
1020
03:00
+8°C
10.3
94%
1021
04:00
+8°C
10.1
94%
1021
05:00
+9°C
9.8
92%
1021
06:00
+9°C
9.7
90%
1021
07:00
+10°C
9.5
87%
1022
08:00
+11°C
9.1
84%
1022
09:00
+12°C
8.6
80%
1022
10:00
+13°C
7.9
74%
1022
11:00
+15°C
7.6
69%
1022
12:00
+16°C
7.6
64%
1023
13:00
+17°C
7.8
61%
1023
14:00
+18°C
8.3
59%
1023
15:00
+18°C
8.7
59%
1023
16:00
+18°C
9.7
60%
1023
17:00
+17°C
11.2
63%
1023
18:00
+16°C
12.8
65%
1022
19:00
+15°C
14.3
68%
1022
20:00
+15°C
15.2
71%
1022
21:00
+14°C
15.4
72%
1022
22:00
+13°C
14.7
74%
1022
23:00
+12°C
13.9
77%
1022
30 May 2026, Saturday
+10°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
12.8
78%
1022
01:00
+10°C
11.8
80%
1022
02:00
+10°C
11.2
81%
1022
03:00
+10°C
11
82%
1022
04:00
+10°C
10.8
82%
1022
05:00
+11°C
10.9
82%
1021
06:00
+11°C
11.2
81%
1021
07:00
+12°C
11.5
80%
1021
08:00
+13°C
12.1
78%
1020
09:00
+14°C
12.8
75%
1020
10:00
+15°C
13.8
70%
1020
11:00
+17°C
14.8
65%
1019
12:00
+18°C
16
61%
1019
13:00
+19°C
17.2
58%
1019
14:00
+20°C
17.8
57%
1019
15:00
+20°C
18.3
57%
1019
16:00
+19°C
18.7
59%
1018
17:00
+18°C
18.8
61%
1018
18:00
+17°C
18.8
65%
1018
19:00
+16°C
18.8
68%
1018
20:00
+15°C
18.4
71%
1018
21:00
+14°C
17.8
75%
1017
22:00
+13°C
16.9
79%
1017
23:00
+11°C
15.7
83%
1017
31 May 2026, Sunday
+9°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+10°C
14.4
87%
1017
01:00
+10°C
13.4
90%
1017
02:00
+9°C
12.6
92%
1017
03:00
+9°C
12.2
93%
1017
04:00
+9°C
12
92%
1017
05:00
+10°C
12.1
90%
1017
06:00
+11°C
12.1
87%
1017
07:00
+11°C
11.9
85%
1017
08:00
+12°C
11.5
81%
1017
09:00
+14°C
10.8
77%
1017
10:00
+15°C
9.9
71%
1017
11:00
+17°C
8.6
66%
1017
12:00
+19°C
7.4
61%
1017
13:00
+21°C
6.5
57%
1017
14:00
+22°C
5.8
55%
1017
15:00
+22°C
5.4
55%
1016
16:00
+22°C
5.3
55%
1016
17:00
+22°C
5.3
56%
1016
18:00
+22°C
5.4
58%
1016
19:00
+21°C
5.5
60%
1016
20:00
+21°C
5.3
63%
1016
21:00
+20°C
5.1
66%
1016
22:00
+18°C
4.8
71%
1016
23:00
+16°C
4.8
77%
1016
01 June 2026, Monday
+11°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
4.4
83%
1017
01:00
+13°C
4.2
89%
1017
02:00
+12°C
3.6
92%
1017
03:00
+11°C
3.1
94%
1017
04:00
+12°C
2.4
94%
1017
05:00
+12°C
1.9
94%
1017
06:00
+13°C
1.7
92%
1017
07:00
+14°C
2.2
89%
1017
08:00
+14°C
3.3
85%
1017
09:00
+15°C
4.8
80%
1017
10:00
+17°C
6.6
74%
1017
11:00
+18°C
8.7
68%
1017
12:00
+19°C
10.6
62%
1017
13:00
+20°C
12.4
58%
1017
14:00
+21°C
13.5
55%
1017
15:00
+22°C
14.2
54%
1016
16:00
+22°C
14.4
54%
1016
17:00
+22°C
14.5
54%
1016
18:00
+21°C
14.5
55%
1015
19:00
+21°C
14.6
56%
1015
20:00
+21°C
15.1
57%
1015
21:00
+20°C
16
58%
1014
22:00
+19°C
17.3
60%
1014
23:00
+19°C
18.8
62%
1014
02 June 2026, Tuesday
+17°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+18°C
20.1
64%
1014
01:00
+17°C
21.2
65%
1013
02:00
+17°C
22.1
67%
1013
03:00
+17°C
22.4
67%
1012
04:00
+17°C
22.4
68%
1012
05:00
+17°C
22.3
69%
1011
06:00
+17°C
22.1
69%
1011
07:00
+18°C
21.8
68%
1010
08:00
+18°C
21.8
67%
1010
09:00
+19°C
21.9
64%
1009
10:00
+20°C
22.4
60%
1008
11:00
+22°C
22.9
55%
1008
12:00
+23°C
23.1
52%
1007
13:00
+24°C
22.9
50%
1006
14:00
+24°C
21.9
50%
1006
15:00
+24°C
19.8
53%
1006
16:00
+23°C
17.1
59%
1006
17:00
+22°C
14.6
67%
1006
18:00
+21°C
12.7
77%
1006
19:00
+19°C
11.7
87%
1007
20:00
+18°C
11.8
94%
1007
21:00
+18°C
11.8
98%
1006
22:00
+18°C
11.8
100%
1006
23:00
+17°C
11.4
100%
1006
03 June 2026, Wednesday
+16°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
11.1
99%
1006
01:00
+17°C
10.7
98%
1006
02:00
+17°C
10.8
97%
1006
03:00
+16°C
11.4
96%
1006
04:00
+16°C
12
96%
1006
05:00
+16°C
12.8
94%
1006
06:00
+16°C
13.8
93%
1007
07:00
+16°C
14.7
90%
1007
08:00
+16°C
15.1
87%
1007
09:00
+16°C
15.5
83%
1008
10:00
+17°C
15.9
77%
1008
11:00
+17°C
16
71%
1008
12:00
+18°C
15.9
65%
1009
13:00
+19°C
15.7
61%
1009
14:00
+19°C
15.1
59%
1009
15:00
+19°C
14
58%
1009
16:00
+19°C
12.5
58%
1009
17:00
+19°C
10.9
59%
1010
18:00
+19°C
9.1
61%
1010
19:00
+18°C
7.9
63%
1010
20:00
+18°C
7.2
66%
1010
21:00
+17°C
7.2
69%
1010
22:00
+17°C
7.6
74%
1010
23:00
+16°C
8.1
79%
1010
04 June 2026, Thursday
+14°C / +18°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
8.8
85%
1010
01:00
+14°C
9.5
90%
1010
02:00
+14°C
9.8
93%
1010
03:00
+14°C
10.1
94%
1010
04:00
+14°C
10.3
93%
1010
05:00
+14°C
10.8
91%
1010
06:00
+14°C
11.3
88%
1010
07:00
+15°C
12.1
85%
1010
08:00
+15°C
12.7
82%
1011
09:00
+16°C
13.5
79%
1011
10:00
+16°C
14.3
75%
1011
11:00
+17°C
15.3
70%
1011
12:00
+17°C
15.9
67%
1012
13:00
+17°C
16.1
63%
1012
14:00
+18°C
15.7
62%
1012
15:00
+18°C
14.6
61%
1012
16:00
+18°C
12.6
62%
1013
17:00
+18°C
10.4
63%
1013
18:00
+18°C
8.2
64%
1013
19:00
+18°C
6.6
66%
1013
20:00
+17°C
5.3
68%
1013
21:00
+17°C
4.5
70%
1014
22:00
+16°C
3.8
73%
1014
23:00
+15°C
3
77%
1014
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.