Svendborg weather in September

In September, Svendborg sees average daytime highs of 16°C and overnight lows near 13°C, with 63 mm of rain across 11.1 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 15°C by the end. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Svendborg's 6th-clearest and 7th-windiest month. For the whole year in context, see Svendborg's year-round climate.

Daytime high
16°
4th warmest
Overnight low
13°
10th coldest
Rainfall
63 mm
11.1 wet days
Daylight
12 h 24 min
5:59 AM – 6:25 PM
Cloud cover
66%
6th clearest
Wind
23 km/h
7th windiest
Solar energy
2.99 kWh/m²
Travel score
4.8
out of 10

Svendborg is town on the south coast of Funen, Denmark.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 15°C by the end.

A typical September day in Svendborg reaches about 16°C in the afternoon and slips back to 13°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11815
21815
31814
41814
51714
61714
71714
81714
91714
101714
111714
121714
131714
141613
151613
161613
171613
181613
191613
201613
211613
221513
231513
241512
251512
261512
271512
281512
291412
301412

How September really feels in Svendborg

Once humidity and wind are folded in, September 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Svendborg weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6612.93.67.50.0
Feb / 4910.53.59.30.0
Mar / 4710.11.911.40.2
Apr / 358.10.113.81.7
May13° / 10°509015.83.8
Jun17° / 13°6110.10175.3
Jul19° / 15°6410.8016.56.1
Aug19° / 16°7311.7014.75.9
Sep16° / 13°6311.1012.54.8
Oct12° / 10°7013.1010.22.9
Nov / 6212.60.58.11.1
Dec / 6813.32.270.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34357
44456
54357
64357
74357
84258
94159
104159
114060
124159
134060
144060
153961
163961
173862
183862
193862
203763
213763
223763
233664
243664
253565
263565
273565
283565
293565
303466

Chance of precipitation in September

Any precipitation

Svendborg gets around 63 mm of rain over 11.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
341
441
541
640
740
839
939
1039
1138
1238
1338
1437
1537
1636
1736
1836
1936
2036
2136
2236
2336
2437
2537
2638
2738
2839
2939
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1523891
2543781
3553771
4563671
5573661
6593560
7603460
8613360
9633250
10643150
11662950
12682840
13692740
14702640
15722530
16732430
17752320
18762220
19762220
20782110
21782110
22792010
23792010
24811900
25811900
26821800
27821800
28831700
29841600
30851500

Wind in September

Winds average 23 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 36 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 132 minutes over September. Sunrise moves from 5:30 AM to 6:26 AM, and sunset from 7:05 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:307:05
213.55:327:02
313.45:347:00
413.45:356:57
513.35:376:54
613.25:396:52
713.15:416:49
813.15:436:47
913.05:456:44
1012.95:476:41
1112.85:496:39
1212.75:516:36
1312.75:536:33
1412.65:556:31
1512.55:576:28
1612.45:596:25
1712.46:016:22
1812.36:026:20
1912.26:046:17
2012.16:066:14
2112.16:086:12
2212.06:106:09
2311.96:126:06
2411.86:146:04
2511.76:166:01
2611.76:185:58
2711.66:205:56
2811.56:225:53
2911.46:245:50
3011.46:265:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.99 kWh/m².

For context, solar energy here swings from a low near 0.41 kWh/m² to a high of 5.86 kWh/m² in June across the year — September's 2.99 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.4Moderate
83.4Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.0Moderate
153.0Moderate
163.0Moderate
172.9Moderate
182.9Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.6Moderate
232.6Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.4Moderate
282.4Moderate
292.3Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Svendborg?

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

4.8
Sightseeing
4th-best month of the year
0.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Svendborg for sightseeing.

What to pack for Svendborg in September

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

In September, Svendborg sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer, rain gear and a windbreaker. About 11 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Svendborg in September

The nearest coast averages about 16°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 18°C and coldest in February near 2°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan3Bracing
Feb2Bracing
Mar3Bracing
Apr5Bracing
May11Bracing
Jun15Bracing
Jul18Cool
Aug18Cool
Sep16Cool
Oct12Bracing
Nov8Bracing
Dec5Bracing

UV index in Svendborg in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Svendborg peaks around June 20 at about 6 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 20UV 6Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Svendborg?

Svendborg sits at 55.1°N, 10.6°E, 14 m above sea level, in Denmark. The nearest listed city is Nyborg, 30 km away.

NyborgOdenseSønderborgSlagelseKlinteby FrihedHaderslevMiddelfartKalundborg

Topography around Svendborg

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

Within 3 km, the terrain around Svendborg has only modest variations in elevation — a maximum elevation change of 85 m around an average of 30 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 133 m; within 80 km, only modest variations in elevation — a maximum elevation change of 151 m.

The land around Svendborg is covered by trees (33%) and artificial surfaces (25%) within 3 km, water (39%) and cropland (29%) within 16 km, and water (55%) and cropland (28%) within 80 km.

3 km
85 m
16 km
133 m
80 km
151 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Nyborg 30 km · Odense 40 km · Sønderborg 55 km · Slagelse 61 km · Klinteby Frihed 65 km · Haderslev 74 km · Middelfart 74 km · Kalundborg 75 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
Evangelical Lutheran 71%other/none/unspecified 24%Muslim 4%

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 Svendborg (55.0598°, 10.6068°, elevation 14 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).