Ettlingen weather in September

In September, Ettlingen sees average daytime highs of 20°C and overnight lows near 12°C, with 62 mm of rain across 9.9 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 18°C by the end. The sky is clear or mostly clear about 26% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Ettlingen's 3rd-clearest and 9th-windiest month. For the whole year in context, see Ettlingen's year-round climate.

Daytime high
20°
4th warmest
Overnight low
12°
9th coldest
Rainfall
62 mm
9.9 wet days
Daylight
12 h 24 min
6:10 AM – 6:31 PM
Cloud cover
60%
3rd clearest
Wind
9 km/h
9th windiest
Solar energy
3.39 kWh/m²
Travel score
6.2
out of 10

Ettlingen is human settlement in 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 22°C in the first days to 18°C by the end.

A typical September day in Ettlingen reaches about 20°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°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
22213
32213
42213
52213
62213
72113
82112
92112
102112
112112
122112
132012
142012
152011
162011
172011
182011
192011
201911
211911
221911
231911
241911
251910
261810
271810
281810
291810
301810

How September really feels in Ettlingen

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.

Ettlingen weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6812.53.68.50.0
Feb / 60113.59.80.4
Mar11° / 6812.41.711.62.4
Apr15° / 5210.80.113.44.5
May19° / 10°7912.80155.7
Jun23° / 13°6712.2015.96.4
Jul25° / 15°7012.2015.56.6
Aug25° / 15°6211.1014.26.7
Sep20° / 12°629.9012.46.2
Oct15° / 6711.30.110.54.1
Nov / 7011.61.28.91.5
Dec / 8314.33.68.10.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 57%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34555
44555
54555
64456
74456
84555
94555
104555
114456
124456
134456
144456
154555
164555
174555
184555
194555
204456
214456
224357
234357
244159
254159
264060
273862
283763
293664
303466

Chance of precipitation in September

Any precipitation

Ettlingen gets around 62 mm of rain over 9.9 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 35% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
434
534
634
735
835
935
1035
1135
1235
1335
1435
1535
1635
1735
1835
1934
2034
2134
2234
2334
2434
2535
2636
2737
2838
2939
3039

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
163298
265287
367276
468266
569265
670255
771254
872244
972244
1073243
1174233
1275223
1375223
1477212
1577212
1678202
1779192
1880191
1981181
2081181
2182171
2282171
2383161
2484160
2585150
2685150
2785150
2885150
2986140
3086140

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 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 108 minutes over September. Sunrise moves from 5:48 AM to 6:31 AM, and sunset from 7:04 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:487:04
213.25:497:02
313.15:517:00
413.15:526:58
513.05:546:56
613.05:556:53
712.95:576:51
812.85:586:49
912.86:006:47
1012.76:016:45
1112.76:036:42
1212.66:046:40
1312.56:066:38
1412.56:076:36
1512.46:096:34
1612.46:106:31
1712.36:126:29
1812.26:136:27
1912.26:146:25
2012.16:166:22
2112.06:176:20
2212.06:196:18
2311.96:206:16
2411.96:226:14
2511.86:236:11
2611.76:256:09
2711.76:266:07
2811.66:286:05
2911.66:296:03
3011.56:316:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.39 kWh/m².

For context, solar energy here swings from a low near 0.78 kWh/m² to a high of 5.61 kWh/m² in June across the year — September's 3.39 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Moderate
33.9Moderate
43.9Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.7Moderate
93.7Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.4Moderate
163.4Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.2Moderate
213.1Moderate
223.1Moderate
233.0Moderate
243.0Moderate
252.9Moderate
262.9Moderate
272.8Moderate
282.8Moderate
292.7Moderate
302.7Moderate
Planning a trip in September

Is September a good time to visit Ettlingen?

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

6.2
Sightseeing
4th-best month of the year
3.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Ettlingen for sightseeing.

What to pack for Ettlingen in September

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

In September, Ettlingen sees daytime highs around 20°C and nights near 12°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Ettlingen 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 Ettlingen peaks around July 14 at about 8 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Ettlingen?

Ettlingen sits at 48.9°N, 8.4°E, 139 m above sea level, in Germany. The nearest listed city is Karlsruhe, 8.0 km away.

Topography around Ettlingen

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

Within 3 km, the terrain around Ettlingen has significant variations in elevation — a maximum elevation change of 286 m around an average of 187 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 666 m; within 80 km, large variations in elevation — a maximum elevation change of 1,076 m.

The land around Ettlingen is covered by trees (58%) within 3 km, trees (54%) within 16 km, and trees (51%) and cropland (24%) within 80 km.

3 km
286 m
16 km
666 m
80 km
1,076 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Karlsruhe 8.0 km · Rheinstetten 8.0 km · Wörth am Rhein 16 km · Gaggenau 17 km · Eggenstein-Leopoldshafen 17 km · Rastatt 17 km · Pforzheim 22 km · Baden-Baden 24 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 Ettlingen (48.9409°, 8.4076°, elevation 139 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).