Erfurt weather in September

In September, Erfurt sees average daytime highs of 18°C and overnight lows near 10°C, with 52 mm of rain across 9.4 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-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 30 min by month's end. Set against the rest of the year, September is Erfurt's 4th-clearest and 8th-windiest month. For the whole year in context, see Erfurt's year-round climate.

Daytime high
18°
4th warmest
Overnight low
10°
9th coldest
Rainfall
52 mm
9.4 wet days
Daylight
12 h 24 min
5:59 AM – 6:22 PM
Cloud cover
66%
4th clearest
Wind
11 km/h
8th windiest
Solar energy
3.08 kWh/m²
Travel score
5.8
out of 10

Erfurt is city in Erfurt, Germany.

Air quality
Good
PM2.5 9.5 µg/m³ · 2019

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 Erfurt reaches about 18°C in the afternoon and slips back to 10°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 25°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)
12111
22111
32011
42011
52011
62011
72011
82010
92010
101910
111910
121910
131910
141910
151910
16189
17189
18189
19189
20189
21189
22179
23179
24178
25178
26178
27178
28168
29168
30168

How September really feels in Erfurt

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.

Erfurt weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°43114.58.20.0
Feb / -1°359.14.39.70.0
Mar / 4711.52.711.51.4
Apr13° / 419.40.413.53.7
May18° / 6311015.35.4
Jun21° / 11°5811.3016.26.1
Jul23° / 13°7011.8015.86.5
Aug23° / 13°6010.6014.36.7
Sep18° / 10°529.4012.45.8
Oct13° / 4610.40.110.43.5
Nov / 4910.41.88.70.9
Dec / -1°4911.63.87.80.0

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 14% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33466
43565
53565
63664
73664
83664
93763
103664
113664
123664
133763
143763
153763
163664
173565
183565
193565
203565
213565
223466
233367
243367
253268
263268
273070
283070
292872
302872

Chance of precipitation in September

Any precipitation

Erfurt gets around 52 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 (%)
134
234
334
434
535
635
735
835
934
1034
1134
1233
1333
1432
1532
1631
1731
1830
1930
2030
2129
2229
2330
2430
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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
175205
276204
377194
479183
579183
681172
781172
882162
983152
1084151
1185141
1286131
1387121
1487121
1588111
1689101
179190
189280
199280
209370
219460
229460
239460
249550
259550
269550
279550
289550
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 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 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over September. Sunrise moves from 5:35 AM to 6:22 AM, and sunset from 6:57 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:356:57
213.35:366:54
313.25:386:52
413.25:396:50
513.15:416:47
613.05:436:45
713.05:446:43
812.95:466:40
912.85:476:38
1012.85:496:36
1112.75:516:33
1212.65:526:31
1312.65:546:29
1412.55:566:26
1512.45:576:24
1612.45:596:22
1712.36:006:19
1812.26:026:17
1912.26:046:15
2012.16:056:12
2112.06:076:10
2212.06:086:07
2311.96:106:05
2411.96:126:03
2511.86:136:00
2611.76:155:58
2711.76:175:56
2811.66:185:53
2911.56:205:51
3011.56:225:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.08 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.38 kWh/m² in June across the year — September's 3.08 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
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 Erfurt?

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

5.8
Sightseeing
4th-best month of the year
2.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Erfurt for sightseeing.

What to pack for Erfurt in September

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

In September, Erfurt sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Erfurt 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 Erfurt peaks around July 13 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 13UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Erfurt?

Erfurt sits at 51.0°N, 11.0°E, 194 m above sea level, in Germany. The nearest listed city is Arnstadt, 16 km away.

Topography around Erfurt

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

Within 3 km, the terrain around Erfurt has only modest variations in elevation — a maximum elevation change of 159 m around an average of 217 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 364 m; within 80 km, large variations in elevation — a maximum elevation change of 962 m.

The land around Erfurt is covered by artificial surfaces (45%) and trees (36%) within 3 km, cropland (61%) within 16 km, and trees (41%) and cropland (40%) within 80 km.

3 km
159 m
16 km
364 m
80 km
962 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Arnstadt 16 km · Weimar 21 km · Sömmerda 21 km · Gotha 24 km · Bad Langensalza 31 km · Ilmenau 34 km · Apolda 34 km · Rudolstadt 36 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 Erfurt (50.9773°, 11.0354°, elevation 194 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).