Dillenburg weather in September

In September, Dillenburg sees average daytime highs of 17°C and overnight lows near 9°C, with 70 mm of rain across 11 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 19°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 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 Dillenburg's 4th-clearest and 9th-windiest month. For the whole year in context, see Dillenburg's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Rainfall
70 mm
11 wet days
Daylight
12 h 24 min
6:10 AM – 6:33 PM
Cloud cover
66%
4th clearest
Wind
11 km/h
9th windiest
Solar energy
3.06 kWh/m²
Travel score
5.3
out of 10

Dillenburg is municipality in Giessen Government Region, 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 19°C in the first days to 15°C by the end.

A typical September day in Dillenburg reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
11911
21911
31911
41911
51911
61910
71910
81810
91810
101810
111810
121810
131810
141810
15189
16179
17179
18179
19179
20179
21179
22169
23169
24169
25169
26168
27168
28158
29158
30158

How September really feels in Dillenburg

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.

Dillenburg weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°8113.45.28.20.0
Feb / -2°65115.39.70.0
Mar / 70132.811.51.3
Apr13° / 5811.20.813.53.4
May17° / 6912.4015.24.9
Jun20° / 11°7312.4016.25.8
Jul22° / 13°8113.5015.86.1
Aug22° / 13°7912.1014.36.2
Sep17° / 7011012.45.3
Oct12° / 7112.40.110.42.9
Nov / 7112.51.98.70.7
Dec / -1°9014.45.67.80.0

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 15% of September, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23763
33664
43565
53664
63664
73763
83664
93664
103664
113664
123664
133664
143565
153565
163664
173664
183664
193664
203664
213664
223565
233565
243466
253367
263268
273070
283070
292971
302773

Chance of precipitation in September

Any precipitation

Dillenburg gets around 70 mm of rain over 11 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 43% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
337
437
537
638
738
838
938
1038
1138
1238
1338
1437
1537
1637
1736
1836
1936
2036
2136
2236
2337
2438
2538
2639
2741
2842
2943
3043

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
174215
276204
377203
478193
579192
679192
780182
881181
981181
1082171
1183161
1284151
1385141
1486131
1587121
1688111
1789101
189091
199181
209181
219370
229370
239460
249460
259460
269460
279460
289460
299460
309460

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
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 5:46 AM to 6:32 AM, and sunset from 7:07 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:467:07
213.35:487:05
313.25:497:03
413.25:517:00
513.15:526:58
613.05:546:56
713.05:556:53
812.95:576:51
912.85:596:49
1012.86:006:47
1112.76:026:44
1212.66:036:42
1312.66:056:40
1412.56:076:37
1512.46:086:35
1612.46:106:33
1712.36:116:30
1812.26:136:28
1912.26:156:25
2012.16:166:23
2112.06:186:21
2212.06:196:18
2311.96:216:16
2411.96:236:14
2511.86:246:11
2611.76:266:09
2711.76:286:07
2811.66:296:05
2911.56:316:02
3011.56:326:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.06 kWh/m².

For context, solar energy here swings from a low near 0.59 kWh/m² to a high of 5.36 kWh/m² in June across the year — September's 3.06 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.4Moderate
83.4Moderate
93.3Moderate
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
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Dillenburg?

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

5.3
Sightseeing
4th-best month of the year
1.5
Beach & pool
4th-best month of the year

September is a reasonable time to visit Dillenburg for sightseeing.

What to pack for Dillenburg in September

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

In September, Dillenburg sees daytime highs around 17°C and nights near 9°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Dillenburg 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 Dillenburg peaks around July 14 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Dillenburg?

Dillenburg sits at 50.7°N, 8.3°E, 232 m above sea level, in Germany. The nearest listed city is Haiger, 6.0 km away.

Topography around Dillenburg

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

Within 3 km, the terrain around Dillenburg has significant variations in elevation — a maximum elevation change of 263 m around an average of 318 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 533 m; within 80 km, large variations in elevation — a maximum elevation change of 829 m.

The land around Dillenburg is covered by trees (69%) within 3 km, trees (68%) and grassland (26%) within 16 km, and trees (59%) and grassland (20%) within 80 km.

3 km
263 m
16 km
533 m
80 km
829 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Haiger 6.0 km · Herborn 7.0 km · Wilnsdorf 16 km · Bad Laasphe 23 km · Netphen 24 km · Siegen 24 km · Wetzlar 25 km · Hilchenbach 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 Dillenburg (50.7411°, 8.287°, elevation 232 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).