Mühlhausen weather in September

In September, Mühlhausen sees average daytime highs of 18°C and overnight lows near 9°C, with 51 mm of rain across 9.4 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 16°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 Mühlhausen's 4th-clearest and 8th-windiest month. For the whole year in context, see Mühlhausen's year-round climate.

Daytime high
18°
4th warmest
Overnight low
9th coldest
Rainfall
51 mm
9.4 wet days
Daylight
12 h 24 min
6:01 AM – 6:24 PM
Cloud cover
67%
4th clearest
Wind
11 km/h
8th windiest
Solar energy
3.04 kWh/m²
Travel score
5.6
out of 10

Mühlhausen is quarter of Mühlhausen/Thuringia, district capital of the Unstrut Hainich District in Thuringia, Germany.

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 20°C in the first days to 16°C by the end.

A typical September day in Mühlhausen reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12011
22011
32011
42011
51911
61910
71910
81910
91910
101910
111910
121810
131810
14189
15189
16189
17189
18189
19179
20179
21179
22178
23178
24178
25168
26168
27168
28168
29168
30158

How September really feels in Mühlhausen

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.

Mühlhausen 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 / -2°4911.34.88.20.0
Feb / -2°409.54.49.60.0
Mar / 5011.92.711.51.2
Apr13° / 4310.20.513.53.4
May17° / 6111.5015.35.1
Jun20° / 11°6111.7016.35.9
Jul22° / 13°7011.9015.96.4
Aug22° / 13°6111.1014.46.5
Sep18° / 519.4012.45.6
Oct12° / 4910.90.210.43.2
Nov / 5010.81.78.70.7
Dec / -1°5312.14.47.70.0

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 13% of September, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23268
33268
43268
53367
63367
73367
83367
93466
103466
113565
123565
133565
143565
153466
163466
173565
183565
193466
203367
213367
223466
233466
243466
253367
263268
273169
283070
293070
302872

Chance of precipitation in September

Any precipitation

Mühlhausen gets around 51 mm of rain over 9.4 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
435
535
635
735
835
935
1034
1134
1234
1333
1433
1532
1632
1731
1831
1931
2030
2130
2230
2330
2431
2531
2632
2733
2834
2935
3036

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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
175205
277194
377194
479183
580173
681172
782162
884151
984151
1085141
1186131
1287121
1388111
1488111
1590100
169190
179280
189370
199370
209460
219460
229550
239550
249550
259640
269640
279640
289640
299640
309640

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 12 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
2912calm
3012calm

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 5:37 AM to 6:24 AM, and sunset from 6:59 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:376:59
213.35:386:57
313.25:406:55
413.25:416:52
513.15:436:50
613.05:456:48
713.05:466:45
812.95:486:43
912.95:506:41
1012.85:516:38
1112.75:536:36
1212.75:546:34
1312.65:566:31
1412.55:586:29
1512.55:596:26
1612.46:016:24
1712.36:036:22
1812.36:046:19
1912.26:066:17
2012.16:086:15
2112.16:096:12
2212.06:116:10
2311.96:126:07
2411.86:146:05
2511.86:166:03
2611.76:176:00
2711.66:195:58
2811.66:215:56
2911.56:225:53
3011.46:245:51

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.04 kWh/m².

For context, solar energy here swings from a low near 0.6 kWh/m² to a high of 5.37 kWh/m² in June across the year — September's 3.04 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.6Moderate
252.6Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Mühlhausen?

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

5.6
Sightseeing
4th-best month of the year
1.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Mühlhausen for sightseeing.

What to pack for Mühlhausen in September

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

In September, Mühlhausen sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Mühlhausen 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 Mühlhausen peaks around July 12 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Mühlhausen in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Mühlhausen is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1415 µg/m³Nov 219 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar14Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul12Moderate
Aug13Moderate
Sep12Moderate
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Mühlhausen?

Mühlhausen sits at 51.2°N, 10.5°E, 221 m above sea level, in Germany. The nearest listed city is Bad Langensalza, 18 km away.

Topography around Mühlhausen

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

Within 3 km, the terrain around Mühlhausen has only modest variations in elevation — a maximum elevation change of 85 m around an average of 225 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 360 m; within 80 km, large variations in elevation — a maximum elevation change of 1,040 m.

The land around Mühlhausen is covered by cropland (37%), artificial surfaces (24%) and grassland (21%) within 3 km, cropland (50%) and trees (32%) within 16 km, and trees (45%) and cropland (36%) within 80 km.

3 km
85 m
16 km
360 m
80 km
1,040 m
treesgrasslandcroplandartificial surfaces
September weather nearby: Bad Langensalza 18 km · Eisenach 27 km · Eschwege 28 km · Heilbad Heiligenstadt 29 km · Gotha 34 km · Sondershausen 34 km · Duderstadt 36 km · Nordhausen 40 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 Mühlhausen (51.209°, 10.4527°, elevation 221 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).