Zawiercie weather in September

In September, Zawiercie sees average daytime highs of 18°C and overnight lows near 10°C, with 73 mm of rain across 11.3 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 20°C in the first days to 16°C by the end. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Zawiercie's 3rd-clearest and 8th-windiest month. For the whole year in context, see Zawiercie's year-round climate.

Daytime high
18°
4th warmest
Overnight low
10°
9th coldest
Rainfall
73 mm
11.3 wet days
Daylight
12 h 24 min
5:25 AM – 5:48 PM
Cloud cover
63%
3rd clearest
Wind
13 km/h
8th windiest
Solar energy
3.1 kWh/m²
Travel score
5.6
out of 10

Zawiercie is city in southern Poland, in the Silesian Voivodeship.

Air quality
Moderate
PM10 39.6 µg/m³ · 2017
Density
624/km²
people per km²

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 20°C in the first days to 16°C by the end.

A typical September day in Zawiercie reaches about 18°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 12°C and 24°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)
12112
22111
32011
42011
52011
62011
72011
82011
91910
101910
111910
121910
131910
141910
151810
16189
17189
18189
19189
20179
21179
22179
23178
24178
25178
26168
27168
28168
29168
30168

How September really feels in Zawiercie

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.

Zawiercie 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 / -4°4611.67.98.30.0
Feb / -4°4410.77.49.70.0
Mar / -0°5411.84.711.50.8
Apr13° / 5611.21.613.53.6
May18° / 8714.2015.25.3
Jun21° / 12°9014016.15.8
Jul23° / 14°10814.5015.86.2
Aug23° / 13°8211.9014.36.6
Sep18° / 10°7311.3012.45.6
Oct13° / 5710.20.510.43.4
Nov / 4910.538.70.8
Dec / -3°4510.76.27.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 (%)
14555
24555
34456
44456
54456
64456
74357
84357
94357
104258
114159
124159
134159
144159
154060
164060
174060
184060
194060
203961
213961
223961
233961
243961
253961
263862
273862
283763
293763
303763

Chance of precipitation in September

Any precipitation

Zawiercie gets around 73 mm of rain over 11.3 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 37% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1139
1238
1338
1438
1537
1637
1737
1836
1936
2036
2136
2235
2335
2435
2535
2635
2735
2835
2935
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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
171236
271236
373225
474224
575214
675214
776213
877203
978202
1079192
1179192
1280182
1382171
1483161
1583161
1684151
1785141
1886131
1987121
2089110
2190100
229190
239280
249370
259370
269460
279460
289550
299550
309550

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 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 108 minutes over September. Sunrise moves from 5:02 AM to 5:48 AM, and sunset from 6:22 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:026:22
213.35:036:20
313.25:056:18
413.25:076:16
513.15:086:13
613.05:106:11
713.05:116:09
812.95:136:06
912.85:146:04
1012.85:166:02
1112.75:186:00
1212.65:195:57
1312.65:215:55
1412.55:225:53
1512.45:245:50
1612.45:255:48
1712.35:275:46
1812.25:295:43
1912.25:305:41
2012.15:325:39
2112.05:335:36
2212.05:355:34
2311.95:375:32
2411.95:385:29
2511.85:405:27
2611.75:415:25
2711.75:435:22
2811.65:455:20
2911.55:465:18
3011.55:485:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.1 kWh/m².

For context, solar energy here swings from a low near 0.71 kWh/m² to a high of 5.35 kWh/m² in June across the year — September's 3.1 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Zawiercie?

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

5.6
Sightseeing
4th-best month of the year
2.1
Beach & pool
4th-best month of the year

September is a reasonable time to visit Zawiercie for sightseeing.

What to pack for Zawiercie in September

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

In September, Zawiercie sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Zawiercie 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 Zawiercie peaks around June 22 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 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 22UV 7Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Zawiercie 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 Zawiercie is worst in June — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1722 µg/m³Dec 1716 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb18Moderate
Mar21Moderate
Apr21Moderate
May21Moderate
Jun22Moderate
Jul21Moderate
Aug21Moderate
Sep20Moderate
Oct18Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Zawiercie?

Zawiercie sits at 50.5°N, 19.4°E, 332 m above sea level, in Poland. The nearest listed city is Myszków, 12 km away.

Topography around Zawiercie

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

Within 3 km, the terrain around Zawiercie has only modest variations in elevation — a maximum elevation change of 67 m around an average of 336 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 226 m; within 80 km, large variations in elevation — a maximum elevation change of 750 m.

The land around Zawiercie is covered by trees (53%) and artificial surfaces (27%) within 3 km, trees (54%) and grassland (25%) within 16 km, and trees (45%) and cropland (33%) within 80 km.

3 km
67 m
16 km
226 m
80 km
750 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Myszków 12 km · Dąbrowa Górnicza 23 km · Olkusz 25 km · Będzin 27 km · Czeladź 31 km · Sosnowiec 31 km · Siemianowice Śląskie 33 km · Jaworzno 33 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 Zawiercie (50.4877°, 19.4168°, elevation 332 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).