Oleśnica weather in September

In September, Oleśnica sees average daytime highs of 19°C and overnight lows near 10°C, with 57 mm of rain across 9.4 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 23% 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 Oleśnica's 4th-clearest and 8th-windiest month. For the whole year in context, see Oleśnica's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
9th coldest
Rainfall
57 mm
9.4 wet days
Daylight
12 h 24 min
5:33 AM – 5:56 PM
Cloud cover
63%
4th clearest
Wind
12 km/h
8th windiest
Solar energy
3.12 kWh/m²
Travel score
6.0
out of 10

Oleśnica is city and urban gmina in Lower Silesian Voivodeship, Poland.

Air quality
Good
PM10 23.3 µg/m³ · 2019
Density
1,763/km²
people per km²
Founded
1189

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 Oleśnica 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 13°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
22112
32112
42112
52111
62111
72111
82011
92011
102011
112011
122010
132010
141910
151910
161910
171910
181910
19189
20189
21189
22189
23189
24189
25179
26179
27178
28178
29178
30178

How September really feels in Oleśnica

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.

Oleśnica 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 / -3°4411.15.98.20.0
Feb / -2°389.24.69.60.0
Mar / 4911.23.311.51.2
Apr14° / 3890.613.54.2
May19° / 5811.10.115.35.9
Jun22° / 12°7211.5016.36.3
Jul24° / 14°9312.7015.96.5
Aug24° / 14°6110.2014.46.8
Sep19° / 10°579.4012.46.0
Oct13° / 489.10.210.43.7
Nov / 419.328.71.0
Dec / -2°4410.44.27.70.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34258
44258
54357
64357
74258
84258
94258
104258
114258
124258
134159
144159
154159
164159
174258
184159
194060
203961
213862
223862
233862
243862
253763
263763
273862
283862
293763
303664

Chance of precipitation in September

Any precipitation

Oleśnica gets around 57 mm of rain over 9.4 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 32% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
635
735
834
934
1033
1133
1232
1331
1430
1530
1629
1729
1829
1928
2028
2128
2229
2329
2429
2529
2630
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 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
169247
270237
371236
472226
573225
674215
775214
876204
977194
1078193
1179183
1280173
1381172
1482162
1583152
1684142
1786131
1886131
1987121
2088111
2190100
229190
239280
249280
259370
269370
279370
289370
299460
309460

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 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2713light breeze
2813light breeze
2913light breeze
3013light 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 5:09 AM to 5:56 AM, and sunset from 6:31 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:096:31
213.35:106:29
313.25:126:27
413.25:146:25
513.15:156:22
613.05:176:20
713.05:196:18
812.95:206:15
912.95:226:13
1012.85:236:11
1112.75:256:08
1212.75:276:06
1312.65:286:03
1412.55:306:01
1512.55:325:59
1612.45:335:56
1712.35:355:54
1812.35:365:52
1912.25:385:49
2012.15:405:47
2112.15:415:44
2212.05:435:42
2311.95:455:40
2411.85:465:37
2511.85:485:35
2611.75:505:33
2711.65:515:30
2811.65:535:28
2911.55:555:26
3011.45:565:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.12 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.42 kWh/m² in June across the year — September's 3.12 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Oleśnica?

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
2.7
Beach & pool
4th-best month of the year

September is a reasonable time to visit Oleśnica for sightseeing.

What to pack for Oleśnica in September

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

In September, Oleśnica 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 Oleśnica 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 Oleśnica peaks around June 19 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 19UV 7Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun7High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Oleśnica 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 Oleśnica is worst in June — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1715 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar14Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Oleśnica?

Oleśnica sits at 51.2°N, 17.4°E, 153 m above sea level, in Poland. The nearest listed city is Psie Pole Zawidawie, 21 km away.

Topography around Oleśnica

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

Within 3 km, the terrain around Oleśnica has only modest variations in elevation — a maximum elevation change of 42 m around an average of 154 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 159 m; within 80 km, large variations in elevation — a maximum elevation change of 627 m.

The land around Oleśnica is covered by cropland (40%), grassland (20%) and artificial surfaces (20%) within 3 km, cropland (50%) and trees (35%) within 16 km, and cropland (56%) and trees (31%) within 80 km.

3 km
42 m
16 km
159 m
80 km
627 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Psie Pole Zawidawie 21 km · Jelcz 22 km · Jelcz Laskowice 22 km · Biskupin-Sępolno-Dąbie-Bartoszowice 24 km · Śródmieście 24 km · Rejon placu Grunwaldzkiego 25 km · Ołbin 26 km · Karłowice-Różanka 26 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 Oleśnica (51.2134°, 17.3899°, elevation 153 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).