Wachtberg weather in September

In September, Wachtberg sees average daytime highs of 19°C and overnight lows near 11°C, with 62 mm of rain across 10.5 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 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 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 Wachtberg's 4th-clearest and 8th-windiest month. For the whole year in context, see Wachtberg's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
62 mm
10.5 wet days
Daylight
12 h 24 min
6:15 AM – 6:37 PM
Cloud cover
64%
4th clearest
Wind
11 km/h
8th windiest
Solar energy
3.11 kWh/m²
Travel score
5.9
out of 10

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 Wachtberg reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°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 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12113
22112
32112
42112
52012
62012
72012
82012
92012
102012
112011
122011
132011
141911
151911
161911
171911
181911
191911
201911
211810
221810
231810
241810
251810
261810
271710
281710
291710
301710

How September really feels in Wachtberg

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.

Wachtberg 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 / 63132.48.30.1
Feb / 5511.43.39.70.5
Mar10° / 5912.81.111.52.1
Apr14° / 4810.40.213.54.1
May18° / 6111.6015.25.5
Jun21° / 12°7111.8016.26.1
Jul23° / 14°7412.7015.86.4
Aug23° / 14°7811.9014.36.5
Sep19° / 11°6210.5012.45.9
Oct14° / 6511.6010.43.9
Nov / 6612.70.88.71.6
Dec / 7514.937.80.3

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 18% of September, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53763
63763
73862
83961
93961
103961
113961
123961
134060
144060
154060
164159
174159
184060
194060
204060
214060
224060
234060
243961
253763
263664
273664
283565
293367
303268

Chance of precipitation in September

Any precipitation

Wachtberg gets around 62 mm of rain over 10.5 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 36% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
237
337
437
537
637
737
837
937
1036
1136
1236
1335
1435
1535
1634
1734
1834
1934
2034
2134
2234
2334
2434
2535
2635
2736
2837
2938
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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1662581
2662581
3672571
4692461
5692461
6712450
7712450
8722350
9722350
10742240
11752140
12762040
13771940
14791830
15791830
16801730
17811630
18821620
19831520
20831520
21831520
22841510
23851410
24851410
25841510
26841510
27851500
28851500
29851500
30861400

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 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 5:51 AM to 6:37 AM, and sunset from 7:12 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:517:12
213.35:527:10
313.25:547:07
413.25:567:05
513.15:577:03
613.05:597:00
713.06:006:58
812.96:026:56
912.86:046:54
1012.86:056:51
1112.76:076:49
1212.66:086:47
1312.66:106:44
1412.56:116:42
1512.46:136:40
1612.46:156:37
1712.36:166:35
1812.26:186:33
1912.26:196:30
2012.16:216:28
2112.06:236:26
2212.06:246:23
2311.96:266:21
2411.96:276:19
2511.86:296:16
2611.76:316:14
2711.76:326:12
2811.66:346:09
2911.56:356:07
3011.56:376:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.11 kWh/m².

For context, solar energy here swings from a low near 0.62 kWh/m² to a high of 5.33 kWh/m² in June across the year — September's 3.11 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.5Moderate
282.5Moderate
292.4Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Wachtberg?

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

5.9
Sightseeing
4th-best month of the year
2.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Wachtberg for sightseeing.

What to pack for Wachtberg in September

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

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

rain gear

UV index in Wachtberg 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 Wachtberg 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

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1415 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun14Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Wachtberg?

Wachtberg sits at 50.6°N, 7.1°E, 194 m above sea level, in Germany. The nearest listed city is Meckenheim, 5.0 km away.

Topography around Wachtberg

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

Within 3 km, the terrain around Wachtberg has only modest variations in elevation — a maximum elevation change of 181 m around an average of 200 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 494 m; within 80 km, large variations in elevation — a maximum elevation change of 1,018 m.

The land around Wachtberg is covered by trees (52%) and cropland (28%) within 3 km, trees (54%) within 16 km, and trees (52%) and grassland (21%) within 80 km.

3 km
181 m
16 km
494 m
80 km
1,018 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Meckenheim 5.0 km · Königswinter 8.0 km · Bonn Hardtberg 9.0 km · Bad Honnef 9.0 km · Bad Neuenahr-Ahrweiler 10 km · Rheinbach 11 km · Remagen 11 km · Bonn 11 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 Wachtberg (50.6333°, 7.1°, 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. 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).