Köthen weather in September

In September, Köthen sees average daytime highs of 19°C and overnight lows near 11°C, with 51 mm of rain across 8.7 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°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 24 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Köthen's 5th-clearest and 8th-windiest month. For the whole year in context, see Köthen's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
51 mm
8.7 wet days
Daylight
12 h 24 min
5:55 AM – 6:18 PM
Cloud cover
65%
5th clearest
Wind
11 km/h
8th windiest
Solar energy
3.07 kWh/m²
Travel score
6.1
out of 10

Köthen is wikimedia duplicate ?.

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 21°C in the first days to 17°C by the end.

A typical September day in Köthen reaches about 19°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12213
22212
32112
42112
52112
62112
72112
82112
92012
102011
112011
122011
132011
142011
152011
161911
171910
181910
191910
201910
211910
221810
231810
241810
251810
26189
27179
28179
29179
30179

How September really feels in Köthen

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.

Köthen weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°4411.22.88.10.0
Feb / -0°329.13.29.60.2
Mar / 4310.81.711.51.7
Apr14° / 348.50.213.64.3
May19° / 569.9015.46.0
Jun22° / 12°5110016.36.4
Jul24° / 14°7011.70166.6
Aug24° / 14°5710.4014.46.8
Sep19° / 11°518.7012.46.1
Oct14° / 439.30.110.44.0
Nov / 4610.20.88.61.2
Dec / 4711.72.87.60.0

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 17% of September, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23763
33763
43763
53763
63862
73862
83961
93961
103961
113961
124159
134159
144060
154060
163862
173862
183862
193763
203763
213763
223664
233664
243664
253664
263466
273367
283367
293367
303169

Chance of precipitation in September

Any precipitation

Köthen gets around 51 mm of rain over 8.7 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 30% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
133
233
333
433
533
633
733
832
932
1032
1131
1231
1330
1429
1529
1628
1728
1827
1927
2027
2127
2227
2327
2427
2528
2629
2730
2831
2931
3032

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
170237
271236
372226
473225
574215
676204
776204
878193
978193
1079183
1181172
1282162
1383152
1484142
1585141
1686131
1787121
1888111
1988111
2089101
2190100
229190
239190
249190
259280
269280
279280
289280
299370
309370

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 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 120 minutes over September. Sunrise moves from 5:30 AM to 6:18 AM, and sunset from 6:54 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:306:54
213.35:316:52
313.35:336:49
413.25:356:47
513.15:366:45
613.15:386:42
713.05:406:40
812.95:416:37
912.95:436:35
1012.85:456:33
1112.75:466:30
1212.75:486:28
1312.65:506:25
1412.55:516:23
1512.55:536:21
1612.45:556:18
1712.35:566:16
1812.35:586:13
1912.26:006:11
2012.16:016:09
2112.16:036:06
2212.06:056:04
2311.96:066:01
2411.86:085:59
2511.86:105:56
2611.76:115:54
2711.66:135:52
2811.66:155:49
2911.56:175:47
3011.46:185:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.07 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.45 kWh/m² in June across the year — September's 3.07 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
93.4Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.6Moderate
262.6Moderate
272.5Moderate
282.5Moderate
292.4Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Köthen?

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

6.1
Sightseeing
4th-best month of the year
2.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Köthen for sightseeing.

What to pack for Köthen in September

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

In September, Köthen sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Köthen 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 Köthen peaks around June 23 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug5High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Köthen?

Köthen sits at 51.8°N, 12.0°E, 83 m above sea level, in Germany. The nearest listed city is Bernburg, 17 km away.

Topography around Köthen

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

Within 3 km, the terrain around Köthen has only modest variations in elevation — a maximum elevation change of 38 m around an average of 83 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 136 m; within 80 km, large variations in elevation — a maximum elevation change of 640 m.

The land around Köthen is covered by cropland (51%) and artificial surfaces (20%) within 3 km, cropland (67%) within 16 km, and cropland (51%) and trees (29%) within 80 km.

3 km
38 m
16 km
136 m
80 km
640 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Bernburg 17 km · Dessau 21 km · Wolfen 23 km · Zerbst 25 km · Bitterfeld-Wolfen 28 km · Staßfurt 29 km · Halle (Saale) 30 km · Halle-Neustadt 31 km

Germany travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 80% of US
price level, 2025
GDP per capita
$60,496
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
3.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 615
Religion
none 44%Roman Catholic 25%Protestant 23%other 5%

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 Köthen (51.7518°, 11.9709°, elevation 83 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. 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).