Forst weather in September

In September, Forst sees average daytime highs of 19°C and overnight lows near 11°C, with 54 mm of rain across 9.9 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 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 22% 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 24 min by month's end. Set against the rest of the year, September is Forst's 4th-clearest and 8th-windiest month. For the whole year in context, see Forst's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
54 mm
9.9 wet days
Daylight
12 h 24 min
5:44 AM – 6:08 PM
Cloud cover
64%
4th clearest
Wind
12 km/h
8th windiest
Solar energy
3.04 kWh/m²
Travel score
6.0
out of 10

Forst is municipality seat 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 21°C in the first days to 17°C by the end.

A typical September day in Forst reaches about 19°C in the afternoon and slips back to 11°C overnight — a 9°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 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12213
22212
32112
42112
52112
62112
72112
82112
92012
102011
112011
122011
132011
142011
151911
161911
171910
181910
191910
201910
211810
221810
231810
24189
25189
26189
27179
28179
29179
30179

How September really feels in Forst

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.

Forst 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 / -2°5111.74.58.10.0
Feb / -1°4093.99.60.1
Mar / 4911.12.611.51.5
Apr14° / 388.80.413.64.4
May19° / 5511015.46.0
Jun22° / 13°6011.2016.36.4
Jul25° / 15°8112.10166.6
Aug24° / 14°6610.7014.46.7
Sep19° / 11°549.9012.46.0
Oct14° / 479.70.110.43.8
Nov / 4610.31.38.61.1
Dec / -0°4911.63.77.60.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23862
33961
43961
53961
64060
74060
84060
94060
104060
114060
124159
134159
144159
154258
164159
174159
184159
194159
204060
214060
224060
233961
243862
253763
263763
273664
283565
293565
303565

Chance of precipitation in September

Any precipitation

Forst gets around 54 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
636
736
835
935
1034
1133
1233
1332
1432
1531
1631
1730
1830
1930
2030
2130
2230
2331
2431
2531
2632
2732
2833
2933
3034

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
166277
267267
369256
470246
572235
672235
773225
875214
976204
1077194
1179183
1280173
1381163
1482153
1584142
1685132
1785132
1887121
1988111
2089101
2189101
229091
239190
249190
259280
269280
279280
289280
299280
309370

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 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
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over September. Sunrise moves from 5:19 AM to 6:08 AM, and sunset from 6:43 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:196:43
213.35:216:41
313.35:226:39
413.25:246:36
513.15:266:34
613.15:276:32
713.05:296:29
812.95:316:27
912.95:326:24
1012.85:346:22
1112.75:366:20
1212.75:376:17
1312.65:396:15
1412.55:416:12
1512.55:426:10
1612.45:446:08
1712.35:466:05
1812.35:476:03
1912.25:496:00
2012.15:515:58
2112.15:525:55
2212.05:545:53
2311.95:565:51
2411.85:575:48
2511.85:595:46
2611.76:015:43
2711.66:035:41
2811.66:045:39
2911.56:065:36
3011.46:085:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.04 kWh/m².

For context, solar energy here swings from a low near 0.59 kWh/m² to a high of 5.3 kWh/m² in June across the year — September's 3.04 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.1Moderate
153.1Moderate
163.0Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.6Moderate
262.6Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Forst?

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

6.0
Sightseeing
4th-best month of the year
2.8
Beach & pool
5th-best month of the year

September is a reasonable time to visit Forst for sightseeing.

What to pack for Forst in September

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

In September, Forst sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Forst 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 Forst peaks around June 18 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 18UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Forst?

Forst sits at 51.7°N, 14.6°E, 80 m above sea level, in Germany. The nearest listed city is Cottbus, 22 km away.

Żagań

Topography around Forst

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

Within 3 km, the terrain around Forst has only modest variations in elevation — a maximum elevation change of 33 m around an average of 78 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 178 m; within 80 km, significant variations in elevation — a maximum elevation change of 593 m.

The land around Forst is covered by trees (37%) and grassland (28%) within 3 km, trees (56%) and grassland (20%) within 16 km, and trees (57%) and cropland (23%) within 80 km.

3 km
33 m
16 km
178 m
80 km
593 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Cottbus 22 km · Guben 24 km · Gubin 25 km · Weißwasser 26 km · Żary 36 km · Hoyerswerda 43 km · Eisenhüttenstadt 46 km · Żagań 48 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 Forst (51.7354°, 14.6397°, elevation 80 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).