Traunstein weather in September

In September, Traunstein sees average daytime highs of 17°C and overnight lows near 8°C, with 169 mm of precipitation across 15.7 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 25% 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 Traunstein's 3rd-clearest and 9th-windiest month. For the whole year in context, see Traunstein's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Precipitation
169 mm
15.7 wet days
Daylight
12 h 18 min
5:53 AM – 6:14 PM
Cloud cover
63%
3rd clearest
Wind
6 km/h
9th windiest
Solar energy
3.42 kWh/m²
Travel score
4.7
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 Traunstein reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°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 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
11910
21910
31910
41910
5189
6189
7189
8189
9189
10189
11189
12189
13178
14178
15178
16178
17178
18178
19178
20178
21167
22167
23167
24167
25167
26167
27167
28167
29157
30157

How September really feels in Traunstein

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.

Traunstein 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 / -6°11513.912.18.60.0
Feb / -5°10413.1129.90.0
Mar / -2°14017.111.811.60.8
Apr12° / 12315.96.613.42.7
May17° / 20220.31.714.94.1
Jun20° / 10°22220.40.215.74.7
Jul22° / 12°22320.5015.45.1
Aug21° / 12°19918.50.114.15.3
Sep17° / 16915.70.512.44.7
Oct13° / 12213.93.210.63.1
Nov / -1°10912.97.69.10.7
Dec / -5°1201511.98.30.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24258
34357
44357
54357
64357
74357
84258
94258
104258
114258
124258
134258
144258
154159
164159
174159
184060
194060
204060
213961
223961
233961
243961
253961
263961
273862
283763
293763
303664

Chance of precipitation in September

Any precipitationSnow

Traunstein gets around 169 mm of rain and snow over 15.7 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 54% and peaks near 59% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1591
2591
3591
4591
5581
6581
7582
8572
9572
10562
11562
12552
13552
14541
15541
16531
17521
18522
19512
20512
21502
22502
23492
24492
25492
26492
27492
28493
29493
30494

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 (%)
167303
269283
372262
473252
575232
677221
778211
880191
981181
1082171
1185150
1286140
1387130
1488120
1589110
1690100
179190
189280
199370
209460
219460
229550
239640
249640
259730
269730
279820
289820
299820
309910

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 5:32 AM to 6:13 AM, and sunset from 6:46 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:326:46
213.25:346:44
313.15:356:42
413.05:376:40
513.05:386:37
612.95:396:35
712.95:416:33
812.85:426:31
912.85:446:29
1012.75:456:27
1112.65:466:25
1212.65:486:23
1312.55:496:20
1412.55:516:18
1512.45:526:16
1612.35:536:14
1712.35:556:12
1812.25:566:10
1912.25:586:08
2012.15:596:05
2112.06:016:03
2212.06:026:01
2311.96:035:59
2411.96:055:57
2511.86:065:55
2611.76:085:53
2711.76:095:50
2811.66:115:48
2911.66:125:46
3011.56:135:44

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 5.36 kWh/m² in June 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
43.8Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.7Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.4Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.2Moderate
223.2Moderate
233.2Moderate
243.1Moderate
253.1Moderate
263.0Moderate
273.0Moderate
283.0Moderate
292.9Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Traunstein?

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

4.7
Sightseeing
3rd-best month of the year
1.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Traunstein for sightseeing.

What to pack for Traunstein in September

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

In September, Traunstein sees daytime highs around 17°C and nights near 8°C. Pack rain gear. About 16 days see rain.

rain gear

UV index in Traunstein 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 Traunstein peaks around July 10 at about 8 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 10UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May7High
Jun8Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Traunstein 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 Traunstein is worst in June — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJun 1515 µg/m³Oct 2010 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb12Moderate
Mar15Moderate
Apr15Moderate
May14Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct10Good
Nov11Good
Dec12Good
Location & terrain

Where is Traunstein?

Traunstein sits at 47.9°N, 12.6°E, 597 m above sea level, in Germany. The nearest listed city is Traunreut, 11 km away.

Topography around Traunstein

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

Within 3 km, the terrain around Traunstein has only modest variations in elevation — a maximum elevation change of 205 m around an average of 623 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,300 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,161 m.

The land around Traunstein is covered by trees (50%) and grassland (30%) within 3 km, trees (45%) and grassland (34%) within 16 km, and trees (49%) and grassland (28%) within 80 km.

3 km
205 m
16 km
1,300 m
80 km
3,161 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Traunreut 11 km · Bad Reichenhall 23 km · Freilassing 25 km · Salzburg 31 km · Burghausen 36 km · Rosenheim 39 km · Waldkraiburg 42 km · Mühldorf 43 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 Traunstein (47.8683°, 12.6433°, elevation 597 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).