Wyszków weather in September

In September, Wyszków sees average daytime highs of 18°C and overnight lows near 9°C, with 59 mm of rain across 9.8 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 16°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 Wyszków's 6th-clearest and 8th-windiest month. For the whole year in context, see Wyszków's year-round climate.

Daytime high
18°
5th warmest
Overnight low
9th coldest
Rainfall
59 mm
9.8 wet days
Daylight
12 h 24 min
5:16 AM – 5:41 PM
Cloud cover
65%
6th clearest
Wind
12 km/h
8th windiest
Solar energy
2.96 kWh/m²
Travel score
5.8
out of 10

Wyszków is city of Poland.

Air quality
Good
PM10 18.3 µg/m³ · 2013
Density
1,262/km²
people per km²
Founded
1203

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 16°C by the end.

A typical September day in Wyszków reaches about 18°C in the afternoon and slips back to 9°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 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)
12111
22111
32111
42011
52011
62011
72011
82010
92010
101910
111910
121910
131910
14199
15189
16189
17189
18189
19189
20189
21178
22178
23178
24178
25178
26168
27168
28168
29167
30167

How September really feels in Wyszków

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.

Wyszków 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 / -4°4110.2680.0
Feb / -4°389.55.99.50.0
Mar / -1°4210.43.311.50.8
Apr13° / 469.7113.63.8
May19° / 67120.115.55.8
Jun22° / 12°7011.5016.56.3
Jul24° / 14°8212.3016.16.6
Aug24° / 13°6510.2014.56.8
Sep18° / 599.8012.45.8
Oct12° / 469.20.310.33.2
Nov / 409.32.58.50.5
Dec / -2°4410.357.50.0

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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34258
44159
54159
64060
74060
84060
94060
104060
114060
124060
133961
144060
153961
163961
174060
183961
194060
204060
214159
224060
234060
243961
253961
263961
273763
283763
293664
303664

Chance of precipitation in September

Any precipitation

Wyszków gets around 59 mm of rain over 9.8 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 37% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
337
437
537
637
736
836
936
1035
1134
1234
1333
1432
1532
1631
1731
1830
1930
2029
2129
2229
2329
2429
2529
2629
2729
2829
2929
3029

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 (%)
170255
270255
372244
472244
573234
674233
775223
876213
976213
1077203
1178193
1280182
1381172
1482162
1582162
1683152
1784142
1886131
1987121
2088111
2189101
229091
239181
249280
259370
269370
279370
289460
299460
309460

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

051015151015202530
Wind speed (km/h)Feels
111calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light 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 4:50 AM to 5:41 AM, and sunset from 6:17 PM to 5:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.44:506:17
213.44:526:15
313.34:546:13
413.24:566:10
513.24:576:08
613.14:596:05
713.05:016:03
813.05:036:00
912.95:045:58
1012.85:065:55
1112.85:085:53
1212.75:095:51
1312.65:115:48
1412.55:135:46
1512.55:155:43
1612.45:165:41
1712.35:185:38
1812.35:205:36
1912.25:225:33
2012.15:235:31
2112.15:255:28
2212.05:275:26
2311.95:295:23
2411.85:305:21
2511.85:325:18
2611.75:345:16
2711.65:365:13
2811.65:375:11
2911.55:395:09
3011.45:415:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.96 kWh/m².

For context, solar energy here swings from a low near 0.51 kWh/m² to a high of 5.47 kWh/m² in June across the year — September's 2.96 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.3Moderate
93.3Moderate
103.2Moderate
113.2Moderate
123.1Moderate
133.1Moderate
143.0Moderate
153.0Moderate
163.0Moderate
172.9Moderate
182.9Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.6Moderate
252.6Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Wyszków?

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

5.8
Sightseeing
4th-best month of the year
2.2
Beach & pool
5th-best month of the year

September is a reasonable time to visit Wyszków for sightseeing.

What to pack for Wyszków in September

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

In September, Wyszków sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Wyszków 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 Wyszków peaks around June 20 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 20UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Wyszków?

Wyszków sits at 52.6°N, 21.5°E, 92 m above sea level, in Poland. The nearest listed city is Pułtusk, 28 km away.

MarkiSulejówekWesoła

Topography around Wyszków

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

Within 3 km, the terrain around Wyszków has only modest variations in elevation — a maximum elevation change of 44 m around an average of 96 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, only modest variations in elevation — a maximum elevation change of 173 m.

The land around Wyszków is covered by trees (42%) and grassland (25%) within 3 km, trees (48%), grassland (28%) and cropland (21%) within 16 km, and trees (39%), cropland (33%) and grassland (25%) within 80 km.

3 km
44 m
16 km
67 m
80 km
173 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Pułtusk 28 km · Wołomin 32 km · Kobyłka 33 km · Ostrów Mazowiecka 38 km · Zielonka 38 km · Marki 39 km · Sulejówek 40 km · Wesoła 41 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 Wyszków (52.5928°, 21.4584°, elevation 92 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).