Sønderborg hourly weather forecast

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

31 August 2026, Monday
+15°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
9
91%
1008
01:00
+16°C
10.4
92%
1008
02:00
+16°C
7.2
95%
1008
03:00
+16°C
9.7
94%
1007
04:00
+17°C
11.5
94%
1007
05:00
+17°C
11.5
97%
1006
06:00
+17°C
15.8
100%
1006
07:00
+16°C
16.2
99%
1005
08:00
+17°C
13.7
93%
1005
09:00
+17°C
13.3
95%
1005
10:00
+17°C
19.4
93%
1004
11:00
+17°C
20.5
87%
1004
12:00
+17°C
20.2
86%
1004
13:00
+18°C
23
85%
1004
14:00
+18°C
23.4
85%
1004
15:00
+19°C
22.7
90%
1004
16:00
+19°C
23.8
84%
1004
17:00
+18°C
21.6
92%
1004
18:00
+18°C
11.5
84%
1004
19:00
+18°C
9.7
85%
1005
20:00
+17°C
11.2
93%
1005
21:00
+17°C
9.4
94%
1005
22:00
+16°C
10.4
95%
1006
23:00
+15°C
9.4
96%
1006
01 September 2026, Tuesday
+15°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
10.1
97%
1006
01:00
+15°C
11.2
97%
1007
02:00
+15°C
13.3
97%
1007
03:00
+16°C
14.8
96%
1007
04:00
+16°C
15.5
95%
1008
05:00
+16°C
15.1
94%
1008
06:00
+16°C
13
93%
1009
07:00
+16°C
11.5
93%
1009
08:00
+16°C
13
92%
1009
09:00
+16°C
16.6
93%
1009
10:00
+17°C
19.4
91%
1010
11:00
+18°C
23
87%
1010
12:00
+19°C
20.5
82%
1011
13:00
+19°C
21.2
80%
1011
14:00
+20°C
20.5
79%
1012
15:00
+20°C
18
75%
1012
16:00
+20°C
22.3
82%
1012
17:00
+19°C
21.2
82%
1012
18:00
+19°C
20.9
82%
1013
19:00
+18°C
23
80%
1013
20:00
+17°C
20.9
77%
1013
21:00
+16°C
18
81%
1014
22:00
+15°C
17.3
83%
1014
23:00
+15°C
13.3
84%
1015
02 September 2026, Wednesday
+15°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
10.8
85%
1015
01:00
+15°C
10.8
85%
1014
02:00
+15°C
10.8
85%
1014
03:00
+15°C
11.5
85%
1014
04:00
+15°C
12.6
86%
1014
05:00
+15°C
11.5
89%
1014
06:00
+15°C
12.2
90%
1014
07:00
+15°C
14.4
89%
1014
08:00
+16°C
16.6
88%
1014
09:00
+17°C
19.1
86%
1014
10:00
+18°C
21.6
84%
1014
11:00
+19°C
22.3
89%
1014
12:00
+19°C
27.7
89%
1014
13:00
+19°C
27.4
83%
1015
14:00
+20°C
25.2
79%
1014
15:00
+20°C
19.4
81%
1014
16:00
+20°C
20.2
77%
1014
17:00
+20°C
21.6
75%
1014
18:00
+19°C
19.8
75%
1014
19:00
+18°C
17.1
81%
1014
20:00
+17°C
13.9
87%
1014
21:00
+16°C
13.4
93%
1014
22:00
+15°C
12.2
95%
1014
23:00
+15°C
13.2
95%
1014
03 September 2026, Thursday
+14°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
13.4
95%
1014
01:00
+14°C
13.8
96%
1014
02:00
+15°C
15.4
97%
1014
03:00
+15°C
15.7
96%
1013
04:00
+15°C
13.9
96%
1013
05:00
+15°C
15.2
96%
1012
06:00
+15°C
18.6
95%
1011
07:00
+15°C
19.8
96%
1011
08:00
+15°C
20
97%
1010
09:00
+15°C
23.5
95%
1010
10:00
+16°C
27
95%
1009
11:00
+17°C
23.3
95%
1008
12:00
+19°C
20.5
90%
1008
13:00
+18°C
22.5
90%
1008
14:00
+20°C
26
82%
1008
15:00
+20°C
25.3
79%
1008
16:00
+19°C
25.8
79%
1008
17:00
+20°C
23.5
83%
1008
18:00
+19°C
22.8
79%
1008
19:00
+18°C
21.9
83%
1009
20:00
+17°C
19.6
89%
1009
21:00
+17°C
18.6
89%
1009
22:00
+16°C
17.5
90%
1010
23:00
+16°C
16.9
90%
1010
04 September 2026, Friday
+15°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
16.3
91%
1010
01:00
+16°C
16.1
91%
1010
02:00
+16°C
15.9
91%
1010
03:00
+16°C
16.2
90%
1010
04:00
+16°C
16.8
88%
1009
05:00
+16°C
17.1
87%
1009
06:00
+16°C
16.2
89%
1008
07:00
+16°C
16.9
91%
1007
08:00
+16°C
20
93%
1005
09:00
+17°C
27.6
95%
1004
10:00
+18°C
38.8
97%
1002
11:00
+19°C
43.8
95%
1001
12:00
+19°C
35.6
87%
1001
13:00
+20°C
24.7
78%
1002
14:00
+20°C
22.9
71%
1004
15:00
+20°C
22.4
68%
1004
16:00
+20°C
21.4
65%
1005
17:00
+19°C
21.3
66%
1006
18:00
+18°C
19.3
69%
1006
19:00
+18°C
16.4
76%
1006
20:00
+17°C
14.7
82%
1007
21:00
+16°C
15.1
86%
1007
22:00
+16°C
16.6
88%
1007
23:00
+15°C
17.5
89%
1008


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.

Sønderborg weather forecast for tomorrow
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