Sønderborg monthly weather forecast

Monthly weather forecast for Sønderborg. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

20 February 2026, Friday
--2°C / +1°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
-1
22
78%
1018
01:00
-1
22.7
77%
1018
02:00
-1
24.1
78%
1019
03:00
-2
24.1
81%
1019
04:00
-2
23
80%
1019
05:00
-2
23
81%
1019
06:00
-2
24.1
81%
1019
07:00
-2
26.3
82%
1020
08:00
-2
28.4
82%
1020
09:00
-2
29.9
80%
1020
10:00
-1
31
76%
1020
11:00
-1
29.9
75%
1019
12:00
-0
31
74%
1018
13:00
0
29.9
71%
1017
14:00
+1°C
29.5
69%
1016
15:00
+1°C
28.8
69%
1016
16:00
+1°C
29.9
69%
1015
17:00
+1°C
25.9
74%
1014
18:00
+1°C
23
80%
1014
19:00
+1°C
27
82%
1013
20:00
+1°C
26.3
84%
1012
21:00
+1°C
27
90%
1011
22:00
+1°C
25.2
94%
1011
23:00
+1°C
23.4
97%
1010
21 February 2026, Saturday
+2°C / +5°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+2°C
22.7
98%
1009
01:00
+2°C
23.8
97%
1007
02:00
+2°C
24.8
97%
1006
03:00
+3°C
24.1
97%
1005
04:00
+3°C
24.5
99%
1004
05:00
+3°C
23
100%
1004
06:00
+4°C
22
100%
1005
07:00
+4°C
22
100%
1005
08:00
+4°C
22.3
98%
1006
09:00
+4°C
20.9
97%
1007
10:00
+4°C
21.6
97%
1008
11:00
+5°C
21.6
97%
1008
12:00
+5°C
20.2
96%
1009
13:00
+5°C
19.1
96%
1009
14:00
+5°C
18.4
96%
1010
15:00
+5°C
17.3
96%
1010
16:00
+5°C
19.1
97%
1010
17:00
+5°C
18.4
97%
1011
18:00
+4°C
15.8
98%
1011
19:00
+4°C
16.6
98%
1011
20:00
+4°C
15.5
99%
1011
21:00
+3°C
16.5
99%
1011
22:00
+3°C
18.6
99%
1010
23:00
+3°C
19.5
98%
1010
22 February 2026, Sunday
+2°C / +8°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+2°C
16.7
99%
1009
01:00
+3°C
16.8
99%
1008
02:00
+3°C
18.6
98%
1008
03:00
+4°C
18
98%
1007
04:00
+4°C
20.3
98%
1005
05:00
+4°C
20.1
98%
1004
06:00
+5°C
20.2
98%
1004
07:00
+5°C
22.1
98%
1003
08:00
+6°C
22.6
98%
1003
09:00
+6°C
22.6
98%
1003
10:00
+7°C
24
97%
1003
11:00
+7°C
25.1
96%
1003
12:00
+7°C
23.2
96%
1003
13:00
+7°C
23.8
95%
1003
14:00
+7°C
23.5
95%
1003
15:00
+8°C
24.4
92%
1003
16:00
+8°C
24.5
89%
1004
17:00
+7°C
20
89%
1004
18:00
+5°C
18.1
93%
1004
19:00
+4°C
17.5
95%
1004
20:00
+4°C
16.4
96%
1004
21:00
+4°C
17.1
98%
1004
22:00
+4°C
16.9
98%
1004
23:00
+3°C
15.3
97%
1004
23 February 2026, Monday
+3°C / +7°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
15
98%
1003
01:00
+3°C
15.1
98%
1002
02:00
+3°C
15.6
98%
1002
03:00
+3°C
16.6
99%
1001
04:00
+3°C
17.5
99%
1000
05:00
+3°C
18.1
98%
1000
06:00
+3°C
18.6
98%
1000
07:00
+3°C
18.9
97%
999
08:00
+4°C
18.5
97%
999
09:00
+4°C
17.8
96%
1000
10:00
+5°C
18
95%
1000
11:00
+6°C
19.6
92%
1000
12:00
+7°C
21.9
89%
1000
13:00
+7°C
23.5
87%
1000
14:00
+7°C
23.4
88%
1000
15:00
+6°C
22.6
90%
1000
16:00
+6°C
21.5
92%
1000
17:00
+5°C
20.1
93%
1000
18:00
+5°C
18.3
94%
1000
19:00
+5°C
16.7
95%
1001
20:00
+4°C
15.5
95%
1002
21:00
+4°C
14.8
95%
1003
22:00
+4°C
14.1
96%
1004
23:00
+4°C
13.1
96%
1005
24 February 2026, Tuesday
+2°C / +7°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+4°C
12.5
97%
1006
01:00
+4°C
11.7
97%
1007
02:00
+3°C
11.1
97%
1008
03:00
+3°C
10.7
97%
1009
04:00
+3°C
10
98%
1010
05:00
+3°C
8.6
98%
1011
06:00
+2°C
7.4
99%
1012
07:00
+2°C
6.9
99%
1013
08:00
+2°C
7.8
99%
1014
09:00
+3°C
9.8
99%
1014
10:00
+3°C
11.6
99%
1015
11:00
+4°C
13.2
97%
1016
12:00
+5°C
14.5
93%
1016
13:00
+5°C
15.5
90%
1016
14:00
+6°C
15.6
88%
1016
15:00
+7°C
15
85%
1016
16:00
+7°C
14.9
84%
1015
17:00
+7°C
15.9
85%
1015
18:00
+7°C
17.2
87%
1015
19:00
+7°C
18.3
90%
1015
20:00
+7°C
19
92%
1015
21:00
+7°C
19.6
94%
1015
22:00
+7°C
19.5
95%
1015
23:00
+7°C
18.5
96%
1015
25 February 2026, Wednesday
+4°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
17.4
96%
1014
01:00
+7°C
16.6
96%
1014
02:00
+6°C
16.8
96%
1014
03:00
+6°C
17.6
96%
1013
04:00
+5°C
18.2
95%
1013
05:00
+5°C
18.3
95%
1013
06:00
+4°C
18.2
95%
1013
07:00
+4°C
18
95%
1013
08:00
+7°C
16.6
95%
1012
09:00
+8°C
16.7
92%
1012
10:00
+9°C
17
88%
1012
11:00
+10°C
17.3
85%
1011
12:00
+11°C
17.7
82%
1011
13:00
+11°C
18
81%
1010
14:00
+11°C
17.9
81%
1010
15:00
+11°C
17.8
81%
1009
16:00
+11°C
17.4
83%
1009
17:00
+10°C
17
85%
1008
18:00
+10°C
16.6
87%
1008
19:00
+9°C
16
88%
1007
20:00
+9°C
15.2
89%
1007
21:00
+9°C
14.4
90%
1007
22:00
+8°C
13.8
90%
1006
23:00
+8°C
13.7
91%
1006
26 February 2026, Thursday
+6°C / +12°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+8°C
14.1
91%
1006
01:00
+7°C
14.6
92%
1006
02:00
+7°C
15
93%
1006
03:00
+7°C
15.1
95%
1005
04:00
+7°C
15.5
96%
1005
05:00
+6°C
16.1
97%
1004
06:00
+6°C
16.6
97%
1004
07:00
+7°C
17.1
96%
1004
08:00
+7°C
17.6
93%
1003
09:00
+8°C
18.3
90%
1003
10:00
+10°C
19.4
85%
1002
11:00
+11°C
20
82%
1002
12:00
+12°C
20.6
79%
1001
13:00
+12°C
20.2
78%
1001
14:00
+12°C
18.7
79%
1000
15:00
+11°C
16.4
81%
1000
16:00
+10°C
14.1
85%
999
17:00
+9°C
12.8
89%
998
18:00
+8°C
12.9
92%
998
19:00
+8°C
13.6
95%
997
20:00
+7°C
14.4
96%
996
21:00
+7°C
15.4
96%
995
22:00
+7°C
16.3
95%
994
23:00
+7°C
17.1
94%
993
27 February 2026, Friday
+4°C / +10°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+7°C
17.9
93%
992
01:00
+7°C
18.5
93%
991
02:00
+7°C
19
93%
990
03:00
+7°C
19.6
94%
989
04:00
+6°C
19.9
95%
988
05:00
+6°C
20
96%
988
06:00
+6°C
20.1
96%
987
07:00
+7°C
19.8
96%
987
08:00
+7°C
19.1
93%
986
09:00
+8°C
18.4
89%
986
10:00
+9°C
17.7
85%
986
11:00
+9°C
17.1
81%
986
12:00
+10°C
16.7
78%
986
13:00
+10°C
16.3
77%
986
14:00
+10°C
15.5
77%
987
15:00
+9°C
14.4
80%
987
16:00
+9°C
13.1
83%
987
17:00
+8°C
12.1
87%
987
18:00
+7°C
11.6
90%
987
19:00
+6°C
11.1
93%
987
20:00
+6°C
10.8
95%
987
21:00
+5°C
10.5
96%
988
22:00
+5°C
10.5
97%
988
23:00
+4°C
10.4
97%
988
28 February 2026, Saturday
+4°C / +6°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+4°C
10.3
97%
988
01:00
+4°C
10.2
98%
988
02:00
+4°C
10
98%
988
03:00
+4°C
9.8
99%
988
04:00
+4°C
9.4
99%
989
05:00
+4°C
9
99%
989
06:00
+4°C
8.3
99%
989
07:00
+5°C
7.5
98%
989
08:00
+5°C
6.9
97%
990
09:00
+5°C
7.3
95%
990
10:00
+6°C
9.5
93%
991
11:00
+6°C
12.8
90%
991
12:00
+6°C
16
88%
992
13:00
+6°C
18.6
87%
993
14:00
+6°C
20.6
86%
993
15:00
+6°C
22.2
86%
994
16:00
+5°C
23.4
87%
994
17:00
+5°C
24.6
87%
995
18:00
+4°C
25.6
87%
996
19:00
+4°C
26.5
87%
996
20:00
+4°C
27.5
86%
997
21:00
+4°C
28.3
85%
998
22:00
+4°C
29
84%
998
23:00
+4°C
29.6
83%
999
01 March 2026, Sunday
+2°C / +7°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+4°C
30
81%
999
01:00
+3°C
30.4
80%
1000
02:00
+3°C
30.7
79%
1000
03:00
+3°C
30.9
79%
1001
04:00
+3°C
30.9
78%
1002
05:00
+3°C
30.9
77%
1002
06:00
+3°C
30.8
76%
1003
07:00
+4°C
30.5
74%
1003
08:00
+4°C
30.5
70%
1004
09:00
+5°C
30.5
66%
1004
10:00
+5°C
30.4
62%
1005
11:00
+6°C
30.3
58%
1005
12:00
+7°C
29.5
55%
1006
13:00
+7°C
28.3
55%
1006
14:00
+6°C
26.1
57%
1007
15:00
+6°C
23.2
61%
1007
16:00
+5°C
20.3
68%
1008
17:00
+4°C
17.5
75%
1008
18:00
+3°C
15.6
81%
1008
19:00
+3°C
14.8
85%
1008
20:00
+2°C
15.1
86%
1008
21:00
+2°C
16.1
84%
1008
22:00
+2°C
17.6
80%
1008
23:00
+3°C
19
77%
1007
02 March 2026, Monday
+2°C / +6°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
20.4
74%
1007
01:00
+3°C
21.6
73%
1006
02:00
+3°C
22.4
74%
1006
03:00
+2°C
23.1
76%
1005
04:00
+2°C
23.4
79%
1005
05:00
+2°C
23.9
82%
1004
06:00
+2°C
24.2
85%
1004
07:00
+2°C
24.5
87%
1003
08:00
+3°C
25.1
89%
1003
09:00
+3°C
25.8
91%
1002
10:00
+4°C
26.5
93%
1002
11:00
+4°C
27.1
94%
1002
12:00
+5°C
27.2
96%
1002
13:00
+5°C
26.7
97%
1002
14:00
+5°C
25.1
97%
1002
15:00
+6°C
23
97%
1002
16:00
+6°C
20.8
97%
1003
17:00
+6°C
18.8
97%
1004
18:00
+6°C
17.6
96%
1004
19:00
+6°C
16.9
96%
1005
20:00
+6°C
16
97%
1005
21:00
+6°C
15
97%
1006
22:00
+5°C
13.7
98%
1006
23:00
+5°C
12.3
98%
1007
03 March 2026, Tuesday
+3°C / +11°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+5°C
11.4
99%
1007
01:00
+4°C
10.5
99%
1008
02:00
+4°C
9.8
100%
1008
03:00
+4°C
9.5
100%
1008
04:00
+4°C
8.9
100%
1009
05:00
+4°C
8.9
100%
1009
06:00
+4°C
8.9
100%
1009
07:00
+4°C
9.2
99%
1010
08:00
+5°C
10
94%
1010
09:00
+6°C
11.4
87%
1011
10:00
+8°C
13.5
79%
1011
11:00
+9°C
15.9
73%
1012
12:00
+10°C
17.8
68%
1013
13:00
+11°C
18.8
65%
1013
14:00
+10°C
18.8
66%
1014
15:00
+10°C
17.8
68%
1014
16:00
+9°C
16.4
72%
1015
17:00
+8°C
14.9
77%
1015
18:00
+7°C
13.5
81%
1016
19:00
+6°C
12.8
85%
1016
20:00
+5°C
12.8
87%
1017
21:00
+4°C
12.9
88%
1017
22:00
+4°C
13.4
89%
1017
23:00
+3°C
13.9
90%
1018
04 March 2026, Wednesday
+2°C / +8°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+3°C
14.6
90%
1018
01:00
+2°C
15.3
91%
1018
02:00
+2°C
15.8
91%
1019
03:00
+2°C
16.6
92%
1019
04:00
+3°C
17.2
93%
1019
05:00
+3°C
18
93%
1019
06:00
+3°C
18.9
92%
1019
07:00
+4°C
20
90%
1019
08:00
+5°C
21.3
86%
1019
09:00
+6°C
23.4
80%
1019
10:00
+6°C
25.7
73%
1020
11:00
+7°C
28
67%
1020
12:00
+8°C
29.8
63%
1020
13:00
+8°C
30.6
61%
1021
14:00
+8°C
30.1
61%
1021
15:00
+7°C
28.4
63%
1022
16:00
+6°C
26.4
66%
1022
17:00
+5°C
23.8
70%
1022
18:00
+4°C
21.6
74%
1023
19:00
+4°C
19.7
77%
1023
20:00
+3°C
18.3
80%
1023
21:00
+3°C
17.1
83%
1024
22:00
+2°C
15.9
86%
1024
23:00
+2°C
15
89%
1024


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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