Jelcz weather in September

In September, Jelcz sees average daytime highs of 19°C and overnight lows near 10°C, with 60 mm of rain across 9.5 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 30 min by month's end. Set against the rest of the year, September is Jelcz's 4th-clearest and 8th-windiest month. For the whole year in context, see Jelcz's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
9th coldest
Rainfall
60 mm
9.5 wet days
Daylight
12 h 24 min
5:34 AM – 5:57 PM
Cloud cover
63%
4th clearest
Wind
12 km/h
8th windiest
Solar energy
3.14 kWh/m²
Travel score
6.1
out of 10

Jelcz is district of Jelcz-Laskowice, Lower Silesia Voivodeship, Poland.

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 Jelcz 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
141910
151910
161910
171910
181910
191910
20189
21189
22189
23189
24189
25189
26179
27179
28179
29178
30178

How September really feels in Jelcz

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.

Jelcz 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°42115.28.20.0
Feb / -2°359.14.39.60.0
Mar / 4711.23.111.51.4
Apr14° / 409.30.613.54.2
May19° / 6111.30.115.35.9
Jun22° / 12°7411.7016.26.3
Jul24° / 14°9312.8015.86.5
Aug24° / 14°6410.4014.36.8
Sep19° / 10°609.5012.46.1
Oct14° / 489.60.110.43.8
Nov / 409.11.78.71.1
Dec / -1°41103.87.80.0

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 18% of September, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24258
34258
44357
54357
64357
74258
84258
94258
104258
114357
124357
134357
144357
154258
164258
174258
184258
194159
204159
214159
224159
234159
244159
254159
264060
273961
283961
293961
303862

Chance of precipitation in September

Any precipitation

Jelcz gets around 60 mm of rain over 9.5 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
636
735
835
934
1033
1133
1232
1331
1431
1530
1629
1729
1829
1929
2029
2129
2229
2329
2430
2530
2631
2731
2832
2932
3033

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
165278
267267
368266
469256
570255
671245
772244
873234
974224
1075214
1176213
1277203
1378193
1480182
1581172
1682162
1783152
1884142
1986131
2087121
2188111
2289101
239091
249190
259280
269280
279280
289370
299370
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
2712light breeze
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 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over September. Sunrise moves from 5:09 AM to 5:56 AM, and sunset from 6:31 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:096:31
213.35:116:29
313.25:136:27
413.25:146:25
513.15:166:22
613.05:176:20
713.05:196:18
812.95:216:15
912.85:226:13
1012.85:246:11
1112.75:266:08
1212.65:276:06
1312.65:296:04
1412.55:306:01
1512.45:325:59
1612.45:345:57
1712.35:355:54
1812.25:375:52
1912.25:385:49
2012.15:405:47
2112.05:425:45
2212.05:435:42
2311.95:455:40
2411.95:475:38
2511.85:485:35
2611.75:505:33
2711.75:525:31
2811.65:535:28
2911.55:555:26
3011.55:565:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.14 kWh/m².

For context, solar energy here swings from a low near 0.67 kWh/m² to a high of 5.43 kWh/m² in June across the year — September's 3.14 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Jelcz?

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

September is a reasonable time to visit Jelcz for sightseeing.

What to pack for Jelcz in September

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

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

rain gear

UV index in Jelcz 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 Jelcz 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 Jelcz 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 Jelcz 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 Jelcz?

Jelcz sits at 51.0°N, 17.3°E, 128 m above sea level, in Poland. The nearest listed city is Jelcz Laskowice, 0.0 km away.

Topography around Jelcz

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

Within 3 km, the terrain around Jelcz has only modest variations in elevation — a maximum elevation change of 36 m around an average of 133 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 77 m; within 80 km, large variations in elevation — a maximum elevation change of 935 m.

The land around Jelcz is covered by trees (40%), cropland (24%) and grassland (20%) within 3 km, cropland (48%) and trees (33%) within 16 km, and cropland (53%) and trees (33%) within 80 km.

3 km
36 m
16 km
77 m
80 km
935 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Jelcz Laskowice 0.0 km · Oława 9.0 km · Biskupin-Sępolno-Dąbie-Bartoszowice 19 km · Śródmieście 20 km · Psie Pole Zawidawie 20 km · Brzeg 21 km · Gaj 21 km · Huby 21 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 Jelcz (51.021°, 17.3209°, elevation 128 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).