Zamość weather in September

In September, Zamość sees average daytime highs of 19°C and overnight lows near 9°C, with 69 mm of rain across 9.6 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 4th-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 24% 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 Zamość's 5th-clearest and 8th-windiest month. For the whole year in context, see Zamość's year-round climate.

Daytime high
19°
5th warmest
Overnight low
9th coldest
Rainfall
69 mm
9.6 wet days
Daylight
12 h 24 min
5:10 AM – 5:33 PM
Cloud cover
63%
5th clearest
Wind
12 km/h
8th windiest
Solar energy
3.11 kWh/m²
Travel score
5.8
out of 10

Zamość is historical city in the Lublin Voivodeship of southeastern Poland.

Air quality
Elevated
PM2.5 18.4 µg/m³ · 2019
Density
2,176/km²
people per km²
Founded
1580

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 Zamość reaches about 19°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
42111
52111
62011
72010
82010
92010
102010
111910
121910
13199
14199
15199
16189
17189
18189
19189
20188
21178
22178
23178
24178
25178
26168
27168
28167
29167
30167

How September really feels in Zamość

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.

Zamość weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°3910.27.18.20.0
Feb / -4°379.97.19.70.0
Mar / -1°4510.33.811.50.7
Apr14° / 5010.21.113.53.8
May19° / 7512.8015.25.7
Jun22° / 12°8013016.26.1
Jul24° / 14°9013.6015.86.4
Aug24° / 13°6510.6014.36.8
Sep19° / 699.6012.45.8
Oct13° / 509.20.510.43.4
Nov / 409.338.70.7
Dec / -3°389.45.77.80.0

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 18% of September, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44555
54555
64456
74555
84456
94456
104357
114456
124357
134258
144357
154159
164159
174159
184060
193961
203961
213961
223862
233862
243862
253862
263862
273862
283862
293862
303862

Chance of precipitation in September

Any precipitation

Zamość gets around 69 mm of rain over 9.6 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 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
332
432
532
632
732
832
932
1032
1132
1232
1332
1432
1532
1632
1732
1832
1932
2032
2132
2232
2332
2431
2531
2631
2730
2830
2930
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 (%)
169247
271236
373225
473225
575214
676204
776204
877203
978193
1078193
1180182
1280182
1381172
1482162
1583161
1684151
1784151
1885141
1986131
2086131
2187121
2288111
2389101
2489101
259091
269091
279280
289280
299280
309280

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

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312light breeze
2412light breeze
2512light breeze
2612light breeze
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 4:46 AM to 5:33 AM, and sunset from 6:07 PM to 5:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.44:466:07
213.34:486:05
313.24:496:03
413.24:516:00
513.14:525:58
613.04:545:56
713.04:565:54
812.94:575:51
912.84:595:49
1012.85:005:47
1112.75:025:44
1212.65:045:42
1312.65:055:40
1412.55:075:37
1512.45:085:35
1612.45:105:33
1712.35:125:30
1812.25:135:28
1912.25:155:26
2012.15:165:23
2112.05:185:21
2212.05:205:19
2311.95:215:16
2411.95:235:14
2511.85:245:12
2611.75:265:09
2711.75:285:07
2811.65:295:05
2911.55:315:02
3011.55:335:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.11 kWh/m².

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.6 kWh/m² in June across the year — September's 3.11 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
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 Zamość?

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
2.3
Beach & pool
5th-best month of the year

September is a reasonable time to visit Zamość for sightseeing.

What to pack for Zamość in September

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

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

rain gear

UV index in Zamość in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Zamość peaks around July 17 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 17UV 7Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May5High
Jun6High
Jul7High
Aug6High
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Zamość 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 Zamość is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Zamość's WHO annual average of 18.4 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1224 µg/m³Dec 1711 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar22Moderate
Apr22Moderate
May21Moderate
Jun23Moderate
Jul24Moderate
Aug21Moderate
Sep18Moderate
Oct14Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Zamość?

Zamość sits at 50.7°N, 23.3°E, 213 m above sea level, in Poland. The nearest listed city is Krasnystaw, 30 km away.

BiłgorajHrubieszówChełmNovovolynskŚwidnikŁęczna

Topography around Zamość

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

Within 3 km, the terrain around Zamość has only modest variations in elevation — a maximum elevation change of 40 m around an average of 214 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 167 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.

The land around Zamość is covered by artificial surfaces (31%), grassland (24%) and trees (23%) within 3 km, cropland (57%) and trees (26%) within 16 km, and cropland (48%) and trees (36%) within 80 km.

3 km
40 m
16 km
167 m
80 km
260 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Krasnystaw 30 km · Tomaszów Lubelski 33 km · Biłgoraj 43 km · Hrubieszów 46 km · Chełm 49 km · Novovolynsk 64 km · Świdnik 67 km · Łęczna 69 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 Zamość (50.7231°, 23.252°, elevation 213 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).