Climate and average weather in Zamość

In Zamość, the summers are warm, showery, and partly cloudy and the winters are very cold, snowy, and mostly cloudy.

Best: late May to late September

Over the course of the year, the temperature in Zamość typically varies from -5°C to 24°C, and is rarely below -15°C or above 31°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Zamość for warm-weather activities is from late May to late September.

Hottest
Jul
24°
Coldest
Jan
-5°
Wettest
Jul
90 mm
Driest
Feb
37 mm
Rain / yr
677 mm
128 wet days
Daylight
7.7–16.3 h
shortest–longest
Elevation
213 m
50.7°N
Clearest
Aug
56% cloud

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.

Zamość weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Zamość, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.0 months, from May 15 to September 14, with daily high temperatures above 19°C. The hottest month of the year in Zamość is July, with an average high of 24°C and low of 14°C.

The cool season lasts 3.4 months, from November 22 to March 5, with daily high temperatures below 5°C. The coldest month of the year in Zamość is January, with an average low of -5°C and high of 0°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 11°C) in August.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan0-5
Feb2-4
Mar7-1
Apr144
May199
Jun2212
Jul2414
Aug2413
Sep199
Oct135
Nov61
Dec1-3

How hot and cold Zamość really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -11°C (around January 27), with roughly 166 freezing days a year (feels-like at or below 0°C) 22 of them bitterly cold — worst in January.

-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan00-10-5
Feb22-9-4
Mar67-5-1
Apr141414
May191979
Jun22221212
Jul24241414
Aug24241313
Sep181989
Oct131325
Nov66-31
Dec11-8-3

Average hourly temperature in Zamość

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 24°C, and coldest before dawn in January, near -5°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Zamość weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Zamość gets about 677 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.5 months, from around Apr 30 to Aug 13, peaking in June at about 46% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 1.

July is the wettest month by volume, with 90 mm over about 14 wet days; February is the driest, with 37 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 20 · 46%Dec 1 · 27%
Rain on a day (%)Rain days
Jan3210
Feb3510
Mar3310
Apr3410
May4113
Jun4413
Jul4314
Aug3511
Sep3110
Oct309
Nov319
Dec319

Monthly rainfall

Over a full year, Zamość collects about 677 mm of rain across 128 wet days — roughly 56 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 90 mm, while February is the driest at just 37 mm. The three wettest months alone bring about 36% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec393745507580906569504038
Rainfall (mm)Rain daysSnow days
Jan39107
Feb37107
Mar45104
Apr50101
May75130
Jun80130
Jul90140
Aug65110
Sep69100
Oct5091
Nov4093
Dec3896

Snow in Zamość

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Zamość averages about 28 snowy days a year. Snow season runs roughly Oct 17 to Apr 24 — about 6.2 months.

February is snowiest, with roughly 7 days of snow and an estimated 29 cm of snowfall. Over the year that adds up to an estimated 114 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonFeb 14
Snow daysSnowfall (cm)
Jan722
Feb729
Mar420
Apr17
May00
Jun00
Jul00
Aug00
Sep00
Oct13
Nov313
Dec621

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Zamość, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around March 31 and lasts for 6.6 months, ending around October 17. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 53% of the time on average.

The cloudier part of the year begins around October 18 and lasts for 5.4 months, ending around March 30. The cloudiest month is December, when it is overcast or mostly cloudy 82% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 9 · 55%Dec 14 · 16%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2179
Feb2377
Mar3070
Apr4060
May4258
Jun4555
Jul4753
Aug5347
Sep4159
Oct3565
Nov2476
Dec1882

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 18, brings about 16 h 18 min of light; the shortest, around December 18, only 7 h 42 min — a swing of roughly 8 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.27:303:42
Feb9.76:514:32
Mar11.55:515:22
Apr13.54:416:14
May15.23:457:01
Jun16.23:207:34
Jul15.83:377:28
Aug14.34:216:41
Sep12.45:105:33
Oct10.45:594:25
Nov8.76:523:32
Dec7.87:303:16

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Zamość averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 10 days.

The sunnier stretch runs 4.1 months, from around Jun 26 to Oct 27. The sunniest month is August, with roughly 10 sunny days (mixed).

The greyest month is December, down near 3 sunny days — about 68% fewer than the August peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 1510 daysDec 143 days
Sunny daysSky
Jan4Gloomy
Feb4Gloomy
Mar5Gloomy
Apr7Gloomy
May8Gloomy
Jun7Gloomy
Jul8Gloomy
Aug10Mixed
Sep7Gloomy
Oct7Gloomy
Nov4Gloomy
Dec3Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Zamość, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.1 months, from around June 1 to September 2. The muggiest month is July, when the air feels humid, muggy or worse about 30% of the time.

The most comfortable stretch runs from around September 3 to May 31, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 21 · 100%Jul 28 · 62%humiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May871210
Jun5727141
Jul3733246
Aug4631203
Sep821520
Oct97200
Nov100000
Dec100000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Zamość is typically light breeze, near 13 km/h, and varies little with the seasons.

The windier part of the year lasts 6.1 months, from around Oct 6 to Apr 9. The windiest month is January, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Apr 10 to Oct 5, with August the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 30 · 15 km/hAug 2 · 10 km/h
Wind speed (km/h)Feels
Jan15light breeze
Feb14light breeze
Mar14light breeze
Apr12light breeze
May11calm
Jun11calm
Jul11calm
Aug10calm
Sep12calm
Oct13light breeze
Nov14light breeze
Dec15light breeze

Best time to visit Zamość

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Zamość throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, Zamość is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Zamość for general outdoor tourist activities is from early May to late September, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 19 · 7.0

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.8poor
Apr3.8fair
May5.6good
Jun6.1good
Jul6.4good
Aug6.8good
Sep5.8good
Oct3.4poor
Nov0.7poor
Dec0.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Zamość for hot-weather activities is from late June to late August, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 9 · 5.9

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Zamość, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 24°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 0°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Zamość sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 14 days see rain.

UV index (midday) in Zamość by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Zamość

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 3 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar1.50
Apr50
May6.50
Jun7.52.5
Jul7.53
Aug72
Sep4.50
Oct00
Nov00
Dec00

Air quality in Zamość by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Zamość typically lasts about 243 days, from around March 24 to November 21 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 21 to October 13.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2450%Apr 2190%Oct 1390%Nov 2150%
Frost-free chance (%)Frost nights
Jan2131
Feb2528
Mar4431
Apr8421
May990
Jun1000
Jul1000
Aug1000
Sep990
Oct8820
Nov5930
Dec2931

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Zamość banks about 999 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02505007501,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr9
May116
Jun211
Jul280
Aug263
Sep114
Oct6
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Zamość receives about 3.1 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.6 and 5.6 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Mar 22 to Sep 16. The brightest month is June, averaging about 5.5 kWh/m² (bright).

The dimmest month is December, down near 0.7 kWh/m² — roughly 88% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 95.6 kWhDec 190.6 kWh
Solar energy (kWh/m²)Level
Jan0.9Dim
Feb1.6Dim
Mar2.9Moderate
Apr4.4Bright
May5.2Bright
Jun5.6Bright
Jul5.3Bright
Aug4.7Bright
Sep3.1Moderate
Oct1.9Dim
Nov1.0Dim
Dec0.7Dim

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
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).