Sønderborg weather in October

In October, Sønderborg sees average daytime highs of 12°C and overnight lows near 8°C, with 58 mm of rain across 11.9 wet days and about 10.2 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 10°C by the end. The sky is clear or mostly clear about 15% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of October to 9 h 06 min by month's end. Set against the rest of the year, October is Sønderborg's 8th-clearest and 6th-windiest month. For the whole year in context, see Sønderborg's year-round climate.

Daytime high: 12°; 6th warmest
Overnight low: 8°; 7th coldest
Rainfall: 58 mm; 11.9 wet days
Daylight: 10 h 12 min; 7:01 AM – 5:11 PM
Cloud cover: 72%; 8th clearest
Wind: 18 km/h; 6th windiest
Solar energy: 1.54 kWh/m²
Travel score: 3.1; out of 10

Sønderborg is town in Denmark.

Density: 2,072/km²; people per km²
Founded: 1256

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← September Sønderborg year-round climate November →Best places to visit in October

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 14°C in the first days to 10°C by the end.

A typical October day in Sønderborg reaches about 12°C in the afternoon and slips back to 8°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 16°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	15	15	14	14	14	14	14	14	13	13	13	13	13	13	12	12	12	12	12	12	12	11	11	11	11	11	11	11	10	10	10
Avg low (°C)	10	10	9	9	9	9	9	9	9	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	6	6	6

	Avg high (°C)	Avg low (°C)
1	15	10
2	15	10
3	14	9
4	14	9
5	14	9
6	14	9
7	14	9
8	14	9
9	13	9
10	13	8
11	13	8
12	13	8
13	13	8
14	13	8
15	12	8
16	12	8
17	12	8
18	12	7
19	12	7
20	12	7
21	12	7
22	11	7
23	11	7
24	11	7
25	11	7
26	11	7
27	11	7
28	11	7
29	10	6
30	10	6
31	10	6

How October really feels in Sønderborg

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sønderborg weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	4° / 0°	56	11.6	3	7.6	0.0
Feb	4° / 0°	43	9.5	3.2	9.3	0.0
Mar	7° / 2°	46	10.1	1.8	11.4	0.7
Apr	11° / 4°	39	9.3	0.3	13.8	2.7
May	15° / 8°	51	10.3	0	15.8	4.7
Jun	19° / 11°	61	11.4	0	17	5.7
Jul	21° / 14°	63	12.1	0	16.5	6.1
Aug	21° / 14°	67	11.8	0	14.7	6.1
Sep	17° / 11°	55	10.2	0	12.5	5.2
Oct	12° / 8°	58	11.9	0	10.2	3.1
Nov	8° / 4°	51	11.1	0.6	8.1	1.1
Dec	5° / 1°	56	11.6	2.1	7	0.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 72%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	32	31	31	31	31	31	31	31	31	32	31	30	30	29	29	28	28	27	27	27	26	26	25	25	25	25	25	24	24	24	24
Cloudier (%)	68	69	69	69	69	69	69	69	69	68	69	70	70	71	71	72	72	73	73	73	74	74	75	75	75	75	75	76	76	76	76

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	31	69
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	32	68
11	31	69
12	30	70
13	30	70
14	29	71
15	29	71
16	28	72
17	28	72
18	27	73
19	27	73
20	27	73
21	26	74
22	26	74
23	25	75
24	25	75
25	25	75
26	25	75
27	25	75
28	24	76
29	24	76
30	24	76
31	24	76

Chance of precipitation in October

Any precipitation

Sønderborg gets around 58 mm of rain over 11.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	37	38	38	38	38	38	37	37	37	37	37	38	38	38	39	39	39	39	39	40	40	40	40	40	40	40	40	40	39	39	39

	Rain chance (%)
1	37
2	38
3	38
4	38
5	38
6	38
7	37
8	37
9	37
10	37
11	37
12	38
13	38
14	38
15	39
16	39
17	39
18	39
19	39
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	40
28	40
29	39
30	39
31	39

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	89	90	90	91	92	92	93	94	94	95	95	95	95	96	96	96	96	97	97	97	97	98	98	98	98	98	99	99	99	99	99
Comfortable (%)	11	10	10	9	8	8	7	6	6	5	5	5	5	4	4	4	4	3	3	3	3	2	2	2	2	2	1	1	1	1	1

	Dry (%)	Comfortable (%)
1	89	11
2	90	10
3	90	10
4	91	9
5	92	8
6	92	8
7	93	7
8	94	6
9	94	6
10	95	5
11	95	5
12	95	5
13	95	5
14	96	4
15	96	4
16	96	4
17	96	4
18	97	3
19	97	3
20	97	3
21	97	3
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

Wind in October

Winds average 18 km/h in October.

Across October, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18	19	19	19	19	19	19
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	17	light breeze
7	17	light breeze
8	17	light breeze
9	17	light breeze
10	17	light breeze
11	17	light breeze
12	17	light breeze
13	17	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	18	light breeze
18	18	light breeze
19	18	light breeze
20	18	light breeze
21	18	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	19	light breeze
27	19	light breeze
28	19	light breeze
29	19	light breeze
30	19	light breeze
31	19	light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 18 min at the start of October to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 132 minutes over October. Sunrise moves from 6:31 AM to 7:32 AM, and sunset from 5:49 PM to 4:37 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	11.3	11.2	11.1	11.1	11.0	10.9	10.8	10.8	10.7	10.6	10.5	10.5	10.4	10.3	10.2	10.2	10.1	10.0	9.9	9.9	9.8	9.7	9.6	9.6	9.5	9.4	9.4	9.3	9.2	9.2	9.1
Sunrise (AM)	6:31	6:33	6:35	6:37	6:39	6:41	6:43	6:45	6:47	6:49	6:51	6:53	6:55	6:57	6:59	7:01	7:03	7:05	7:07	7:09	7:11	7:13	7:15	7:17	7:19	7:22	7:24	7:26	7:28	7:30	7:32
Sunset (PM)	5:49	5:46	5:43	5:41	5:38	5:36	5:33	5:31	5:28	5:26	5:23	5:21	5:18	5:16	5:13	5:11	5:08	5:06	5:04	5:01	4:59	4:57	4:54	4:52	4:50	4:48	4:45	4:43	4:41	4:39	4:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	6:31	5:49
2	11.2	6:33	5:46
3	11.1	6:35	5:43
4	11.1	6:37	5:41
5	11.0	6:39	5:38
6	10.9	6:41	5:36
7	10.8	6:43	5:33
8	10.8	6:45	5:31
9	10.7	6:47	5:28
10	10.6	6:49	5:26
11	10.5	6:51	5:23
12	10.5	6:53	5:21
13	10.4	6:55	5:18
14	10.3	6:57	5:16
15	10.2	6:59	5:13
16	10.2	7:01	5:11
17	10.1	7:03	5:08
18	10.0	7:05	5:06
19	9.9	7:07	5:04
20	9.9	7:09	5:01
21	9.8	7:11	4:59
22	9.7	7:13	4:57
23	9.6	7:15	4:54
24	9.6	7:17	4:52
25	9.5	7:19	4:50
26	9.4	7:22	4:48
27	9.4	7:24	4:45
28	9.3	7:26	4:43
29	9.2	7:28	4:41
30	9.2	7:30	4:39
31	9.1	7:32	4:37

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.54 kWh/m².

For context, solar energy here swings from a low near 0.4 kWh/m² to a high of 5.62 kWh/m² in June across the year — October's 1.54 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.1	2.0	2.0	2.0	1.9	1.9	1.9	1.8	1.8	1.8	1.7	1.7	1.6	1.6	1.6	1.5	1.5	1.5	1.4	1.4	1.4	1.3	1.3	1.3	1.2	1.2	1.2	1.1	1.1	1.1	1.0
Level	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.1	Moderate
2	2.0	Moderate
3	2.0	Moderate
4	2.0	Dim
5	1.9	Dim
6	1.9	Dim
7	1.9	Dim
8	1.8	Dim
9	1.8	Dim
10	1.8	Dim
11	1.7	Dim
12	1.7	Dim
13	1.6	Dim
14	1.6	Dim
15	1.6	Dim
16	1.5	Dim
17	1.5	Dim
18	1.5	Dim
19	1.4	Dim
20	1.4	Dim
21	1.4	Dim
22	1.3	Dim
23	1.3	Dim
24	1.3	Dim
25	1.2	Dim
26	1.2	Dim
27	1.2	Dim
28	1.1	Dim
29	1.1	Dim
30	1.1	Dim
31	1.0	Dim

Planning a trip in October

Is October a good time to visit Sønderborg?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.1

Sightseeing

6th-best month of the year

0.0

Beach & pool

6th-best month of the year

October is a weaker month for outdoor sightseeing in Sønderborg.

What to pack for Sønderborg in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Sønderborg sees daytime highs around 12°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Sønderborg in October

The nearest coast averages about 12°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in August at about 19°C and coldest in February near 2°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	3	2	3	5	11	15	18	19	16	12	9	4
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	3	Bracing
Feb	2	Bracing
Mar	3	Bracing
Apr	5	Bracing
May	11	Bracing
Jun	15	Cool
Jul	18	Cool
Aug	19	Cool
Sep	16	Cool
Oct	12	Bracing
Nov	9	Bracing
Dec	4	Bracing

UV index in Sønderborg in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sønderborg peaks around July 17 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	5	5	5	5	4	2	1	0
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Moderate
Apr	3	Moderate
May	5	High
Jun	5	High
Jul	5	High
Aug	5	High
Sep	4	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Sønderborg?

Sønderborg sits at 54.9°N, 9.8°E, 15 m above sea level, in Denmark. The nearest listed city is Flensburg, 26 km away.

Topography around Sønderborg

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sønderborg.

Within 3 km, the terrain around Sønderborg has only modest variations in elevation — a maximum elevation change of 66 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, only modest variations in elevation — a maximum elevation change of 147 m.

The land around Sønderborg is covered by water (31%), grassland (23%) and artificial surfaces (22%) within 3 km, water (39%) and cropland (34%) within 16 km, and cropland (35%) and water (33%) within 80 km.

3 km

66 m

water 31%

16 km

92 m

water 39%

80 km

147 m

cropland 35%

treesgrasslandcroplandartificial surfaceswater

← September Sønderborg year-round climate November →Best places to visit in October

October weather nearby: Flensburg 26 km · Aabenraa 28 km · Haderslev 42 km · Schleswig 46 km · Eckernförde 49 km · Svendborg 55 km · Tønder 59 km · Odense 66 km

Denmark travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E / F / K; 230 V · 50 Hz
Prices: ≈ 92% of US; price level, 2025
GDP per capita: $76,970; 2025
Happiness: 7.5 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 0.8; per 100k, 2023
Road deaths: 3.7; per 100k/yr, 2019
Income group: High; World Bank
English: Very high; EF EPI 611
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sønderborg (54.909°, 9.7892°, elevation 15 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	15	10
2	15	10
3	14	9
4	14	9
5	14	9
6	14	9
7	14	9
8	14	9
9	13	9
10	13	8
11	13	8
12	13	8
13	13	8
14	13	8
15	12	8
16	12	8
17	12	8
18	12	7
19	12	7
20	12	7
21	12	7
22	11	7
23	11	7
24	11	7
25	11	7
26	11	7
27	11	7
28	11	7
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	31	69
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	32	68
11	31	69
12	30	70
13	30	70
14	29	71
15	29	71
16	28	72
17	28	72
18	27	73
19	27	73
20	27	73
21	26	74
22	26	74
23	25	75
24	25	75
25	25	75
26	25	75
27	25	75
28	24	76
29	24	76
30	24	76
31	24	76

	Rain chance (%)
1	37
2	38
3	38
4	38
5	38
6	38
7	37
8	37
9	37
10	37
11	37
12	38
13	38
14	38
15	39
16	39
17	39
18	39
19	39
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	40
28	40
29	39
30	39
31	39

	Dry (%)	Comfortable (%)
1	89	11
2	90	10
3	90	10
4	91	9
5	92	8
6	92	8
7	93	7
8	94	6
9	94	6
10	95	5
11	95	5
12	95	5
13	95	5
14	96	4
15	96	4
16	96	4
17	96	4
18	97	3
19	97	3
20	97	3
21	97	3
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	15	10
2	15	10
3	14	9
4	14	9
5	14	9
6	14	9
7	14	9
8	14	9
9	13	9
10	13	8
11	13	8
12	13	8
13	13	8
14	13	8
15	12	8
16	12	8
17	12	8
18	12	7
19	12	7
20	12	7
21	12	7
22	11	7
23	11	7
24	11	7
25	11	7
26	11	7
27	11	7
28	11	7
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	31	69
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	32	68
11	31	69
12	30	70
13	30	70
14	29	71
15	29	71
16	28	72
17	28	72
18	27	73
19	27	73
20	27	73
21	26	74
22	26	74
23	25	75
24	25	75
25	25	75
26	25	75
27	25	75
28	24	76
29	24	76
30	24	76
31	24	76

	Rain chance (%)
1	37
2	38
3	38
4	38
5	38
6	38
7	37
8	37
9	37
10	37
11	37
12	38
13	38
14	38
15	39
16	39
17	39
18	39
19	39
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	40
28	40
29	39
30	39
31	39

	Dry (%)	Comfortable (%)
1	89	11
2	90	10
3	90	10
4	91	9
5	92	8
6	92	8
7	93	7
8	94	6
9	94	6
10	95	5
11	95	5
12	95	5
13	95	5
14	96	4
15	96	4
16	96	4
17	96	4
18	97	3
19	97	3
20	97	3
21	97	3
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1

	Avg high (°C)	Avg low (°C)
1	15	10
2	15	10
3	14	9
4	14	9
5	14	9
6	14	9
7	14	9
8	14	9
9	13	9
10	13	8
11	13	8
12	13	8
13	13	8
14	13	8
15	12	8
16	12	8
17	12	8
18	12	7
19	12	7
20	12	7
21	12	7
22	11	7
23	11	7
24	11	7
25	11	7
26	11	7
27	11	7
28	11	7
29	10	6
30	10	6
31	10	6

	Clearer (%)	Cloudier (%)
1	32	68
2	31	69
3	31	69
4	31	69
5	31	69
6	31	69
7	31	69
8	31	69
9	31	69
10	32	68
11	31	69
12	30	70
13	30	70
14	29	71
15	29	71
16	28	72
17	28	72
18	27	73
19	27	73
20	27	73
21	26	74
22	26	74
23	25	75
24	25	75
25	25	75
26	25	75
27	25	75
28	24	76
29	24	76
30	24	76
31	24	76

	Rain chance (%)
1	37
2	38
3	38
4	38
5	38
6	38
7	37
8	37
9	37
10	37
11	37
12	38
13	38
14	38
15	39
16	39
17	39
18	39
19	39
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	40
28	40
29	39
30	39
31	39

	Dry (%)	Comfortable (%)
1	89	11
2	90	10
3	90	10
4	91	9
5	92	8
6	92	8
7	93	7
8	94	6
9	94	6
10	95	5
11	95	5
12	95	5
13	95	5
14	96	4
15	96	4
16	96	4
17	96	4
18	97	3
19	97	3
20	97	3
21	97	3
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	99	1
28	99	1
29	99	1
30	99	1
31	99	1