Sønderborg weather forecast for 5 days

Sønderborg weather forecast for 5 days. ℃ 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


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.

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