Zielona Góra weather in September

In September, Zielona Góra sees average daytime highs of 19°C and overnight lows near 10°C, with 50 mm of rain across 9 wet days and about 12.4 hours of daylight. It is the 5th-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 Zielona Góra's 4th-clearest and 8th-windiest month. For the whole year in context, see Zielona Góra's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
9th coldest
Rainfall
50 mm
9 wet days
Daylight
12 h 24 min
5:40 AM – 6:04 PM
Cloud cover
64%
4th clearest
Wind
12 km/h
8th windiest
Solar energy
3.02 kWh/m²
Travel score
6.1
out of 10

Zielona Góra is City with powiat rights of Poland.

Air quality
Moderate
PM2.5 13.6 µg/m³ · 2019
Density
426/km²
people per km²
Founded
1250

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 Zielona Góra reaches about 19°C in the afternoon and slips back to 10°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)
12212
22212
32112
42112
52112
62112
72111
82111
92011
102011
112011
122011
132011
142010
151910
161910
171910
181910
191910
201910
21189
22189
23189
24189
25189
26189
27179
28179
29178
30178

How September really feels in Zielona Góra

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.

Zielona Góra weather by month

How September compares with the rest of the year at a glance. September is the 5th-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°4610.94.48.10.0
Feb / -2°368.73.89.60.0
Mar / 4710.72.611.51.4
Apr14° / 358.20.413.64.4
May20° / 5610.6015.46.1
Jun23° / 13°5811016.46.5
Jul25° / 15°8111.70166.6
Aug24° / 14°6410.3014.46.7
Sep19° / 10°509012.46.1
Oct13° / 449.30.210.43.8
Nov / 419.21.48.61.0
Dec / -1°4310.73.37.60.0

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 17% of September, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
33862
43961
53961
63961
73961
84060
94159
104159
114159
124258
134258
144159
154159
164159
174159
184159
194060
204060
214060
223862
233862
243763
253763
263565
273664
283565
293466
303466

Chance of precipitation in September

Any precipitation

Zielona Góra gets around 50 mm of rain over 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 30% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
435
534
634
733
833
932
1031
1130
1230
1329
1428
1528
1628
1727
1827
1927
2027
2127
2227
2328
2428
2529
2629
2730
2831
2931
3032

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
169256
271245
371245
472235
574224
675214
776204
878193
979183
1080173
1181163
1282162
1383152
1484142
1585132
1687121
1788111
1888111
1989101
209091
219190
229190
239280
249280
259280
269280
279280
289280
299280
309370

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812light breeze
2912light breeze
3012light breeze

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 5:15 AM to 6:04 AM, and sunset from 6:40 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:156:40
213.35:176:38
313.35:196:35
413.25:206:33
513.15:226:31
613.15:246:28
713.05:256:26
812.95:276:23
912.95:296:21
1012.85:306:19
1112.75:326:16
1212.75:346:14
1312.65:356:11
1412.55:376:09
1512.55:396:07
1612.45:406:04
1712.35:426:02
1812.35:445:59
1912.25:465:57
2012.15:475:54
2112.15:495:52
2212.05:515:50
2311.95:525:47
2411.85:545:45
2511.85:565:42
2611.75:575:40
2711.65:595:37
2811.66:015:35
2911.56:035:33
3011.46:045:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.02 kWh/m².

For context, solar energy here swings from a low near 0.57 kWh/m² to a high of 5.33 kWh/m² in June across the year — September's 3.02 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.6Moderate
262.6Moderate
272.5Moderate
282.5Moderate
292.4Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Zielona Góra?

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

6.1
Sightseeing
4th-best month of the year
2.8
Beach & pool
5th-best month of the year

September is a reasonable time to visit Zielona Góra for sightseeing.

What to pack for Zielona Góra in September

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

In September, Zielona Góra sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Zielona Góra 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 Zielona Góra 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 21 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 21UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Zielona Góra 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 Zielona Góra is worst in June — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Zielona Góra's WHO annual average of 13.6 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1717 µg/m³Dec 1410 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar16Moderate
Apr16Moderate
May15Moderate
Jun17Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec9Good
Location & terrain

Where is Zielona Góra?

Zielona Góra sits at 51.9°N, 15.5°E, 143 m above sea level, in Poland. The nearest listed city is Sulechów, 18 km away.

ŻaryGłogówGubinGuben

Topography around Zielona Góra

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

Within 3 km, the terrain around Zielona Góra has only modest variations in elevation — a maximum elevation change of 124 m around an average of 150 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, significant variations in elevation — a maximum elevation change of 283 m.

The land around Zielona Góra is covered by trees (58%) and artificial surfaces (38%) within 3 km, trees (64%) within 16 km, and trees (56%) and cropland (27%) within 80 km.

3 km
124 m
16 km
195 m
80 km
283 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Sulechów 18 km · Nowa Sól 21 km · Świebodzin 35 km · Żagań 38 km · Żary 41 km · Głogów 50 km · Gubin 53 km · Guben 55 km

Poland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 52% of US
price level, 2025
GDP per capita
$28,420
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
9.4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 600
Religion
Roman Catholic 71%refused to answer 21%no religion 7%

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 Zielona Góra (51.9355°, 15.5064°, elevation 143 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).