Weilheim weather in September

In September, Weilheim sees average daytime highs of 17°C and overnight lows near 9°C, with 124 mm of precipitation across 14.3 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 19°C in the first days to 16°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 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Weilheim's 3rd-clearest and 10th-windiest month. For the whole year in context, see Weilheim's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Precipitation
124 mm
14.3 wet days
Daylight
12 h 18 min
5:59 AM – 6:20 PM
Cloud cover
62%
3rd clearest
Wind
6 km/h
10th windiest
Solar energy
3.42 kWh/m²
Travel score
4.9
out of 10

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 16°C by the end.

A typical September day in Weilheim 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 11°C and 23°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11911
21911
31911
41910
51910
61810
71810
81810
91810
101810
11189
12189
13179
14179
15179
16179
17179
18179
19179
20178
21168
22168
23168
24168
25168
26168
27168
28168
29158
30157

How September really feels in Weilheim

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.

Weilheim 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 / -5°8011.99.68.60.0
Feb / -5°7311.69.69.90.0
Mar / -1°9714.78.411.61.1
Apr12° / 10314.85.213.42.9
May17° / 16018.8114.94.3
Jun20° / 11°16918.2015.75.0
Jul22° / 13°16417.1015.45.6
Aug21° / 13°15816.6014.15.6
Sep17° / 12414.30.112.44.9
Oct13° / 9212.81.910.63.3
Nov / 8711.65.79.10.8
Dec / -4°8713.29.28.30.0

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 15% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54357
64357
74357
84357
94357
104357
114357
124258
134159
144159
154159
164159
174060
184060
194060
204060
213961
223961
233961
243961
253961
263862
273862
283763
293664
303565

Chance of precipitation in September

Any precipitationSnow

Weilheim gets around 124 mm of rain and snow over 14.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 48% and peaks near 55% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1550
2550
3550
4540
5540
6530
7530
8520
9510
10510
11500
12490
13490
14480
15470
16470
17460
18460
19450
20450
21440
22440
23440
24441
25441
26441
27441
28441
29451
30452

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
167303
269283
371272
473252
574242
676231
778211
879201
980191
1081181
1183170
1284160
1385150
1486140
1587130
1688120
1789110
1890100
199190
209280
219370
229460
239550
249550
259640
269730
279730
289820
299820
309820

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 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 102 minutes over September. Sunrise moves from 5:38 AM to 6:19 AM, and sunset from 6:52 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:386:52
213.25:406:50
313.15:416:48
413.05:436:45
513.05:446:43
612.95:456:41
712.95:476:39
812.85:486:37
912.85:506:35
1012.75:516:33
1112.65:526:31
1212.65:546:29
1312.55:556:26
1412.55:576:24
1512.45:586:22
1612.35:596:20
1712.36:016:18
1812.26:026:16
1912.26:046:13
2012.16:056:11
2112.06:076:09
2212.06:086:07
2311.96:096:05
2411.96:116:03
2511.86:126:01
2611.76:145:58
2711.76:155:56
2811.66:165:54
2911.66:185:52
3011.56:195:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.42 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.3 kWh/m² in July across the year — September's 3.42 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
14.0Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.4Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.2Moderate
223.2Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.0Moderate
273.0Moderate
282.9Moderate
292.9Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Weilheim?

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

4.9
Sightseeing
4th-best month of the year
1.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Weilheim for sightseeing.

What to pack for Weilheim in September

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

In September, Weilheim sees daytime highs around 17°C and nights near 9°C. Pack rain gear. About 14 days see rain.

rain gear

UV index in Weilheim 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 Weilheim peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1615 µg/m³Nov 139 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar14Moderate
Apr14Moderate
May13Moderate
Jun15Moderate
Jul13Moderate
Aug12Moderate
Sep11Good
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Weilheim?

Weilheim sits at 47.8°N, 11.2°E, 573 m above sea level, in Germany. The nearest listed city is Penzberg, 19 km away.

Topography around Weilheim

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

Within 3 km, the terrain around Weilheim has only modest variations in elevation — a maximum elevation change of 117 m around an average of 581 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 450 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,682 m.

The land around Weilheim is covered by grassland (43%) and trees (30%) within 3 km, trees (44%) and grassland (41%) within 16 km, and trees (47%) and grassland (30%) within 80 km.

3 km
117 m
16 km
450 m
80 km
2,682 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Penzberg 19 km · Wolfratshausen 21 km · Starnberg 23 km · Geretsried 24 km · Gauting 30 km · Landsberg am Lech 31 km · Gilching 31 km · Bad Tölz 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 Weilheim (47.8415°, 11.1548°, elevation 573 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).