Climate and average weather in Józefów

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

Best: early May to late September

Over the course of the year, the temperature in Józefów typically varies from -4°C to 24°C, and is rarely below -13°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 Józefów for warm-weather activities is from early May to late September.

Hottest
Jul
24°
Coldest
Jan
-4°
Wettest
Jul
82 mm
Driest
Feb
37 mm
Rain / yr
634 mm
126 wet days
Daylight
7.5–16.5 h
shortest–longest
Elevation
93 m
52.1°N
Clearest
Aug
58% cloud

Józefów is city and urban gmina of Poland.

Density
749/km²
people per km²
Founded
1962

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Józefów 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 early May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.9 months, from May 17 to September 12, with daily high temperatures above 19°C. The hottest month of the year in Józefów is July, with an average high of 24°C and low of 14°C.

The cool season lasts 3.6 months, from November 19 to March 7, with daily high temperatures below 5°C. The coldest month of the year in Józefów is January, with an average low of -4°C and high of 1°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 10°C) in May.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1-4
Feb2-3
Mar70
Apr144
May199
Jun2212
Jul2414
Aug2413
Sep199
Oct125
Nov62
Dec2-2

How hot and cold Józefów 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 -9°C (around January 29), with roughly 161 freezing days a year (feels-like at or below 0°C), worst in January.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan11-9-4
Feb22-8-3
Mar77-50
Apr141414
May191979
Jun22221212
Jul24241414
Aug24241313
Sep191989
Oct121225
Nov66-22
Dec22-7-2

Average hourly temperature in Józefów

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 -4°C.

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

Józefów 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 / -4°4010.36.280.0
Feb / -3°379.75.99.50.0
Mar / -1°4210.43.111.50.9
Apr14° / 469.80.813.63.9
May19° / 6711.80.115.45.9
Jun22° / 12°6811.9016.46.3
Jul24° / 14°8212.70166.5
Aug24° / 13°6510.3014.46.8
Sep19° / 589.7012.45.8
Oct12° / 459.60.310.43.3
Nov / 419.32.38.50.6
Dec / -2°4310.14.77.60.0

Chance of rain

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

Józefów gets about 634 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 3.1 months, from around May 6 to Aug 7, peaking in June at about 42% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Nov 27.

July is the wettest month by volume, with 82 mm over about 13 wet days; February is the driest, with 37 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 23 · 42%Nov 27 · 28%
Rain on a day (%)Rain days
Jan3310
Feb3510
Mar3310
Apr3310
May3712
Jun4012
Jul4013
Aug3410
Sep3210
Oct3110
Nov319
Dec3310

Monthly rainfall

Over a full year, Józefów collects about 634 mm of rain across 126 wet days — roughly 53 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 82 mm, while February is the driest at just 37 mm. The three wettest months alone bring about 34% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec403742466768826558454143
Rainfall (mm)Rain daysSnow days
Jan40106
Feb37106
Mar42103
Apr46101
May67120
Jun68120
Jul82130
Aug65100
Sep58100
Oct45100
Nov4192
Dec43105

Snow in Józefów

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.

Józefów averages about 23 snowy days a year. Snow season runs roughly Oct 27 to Apr 20 — about 5.8 months.

February is snowiest, with roughly 6 days of snow and an estimated 25 cm of snowfall. Over the year that adds up to an estimated 86 cm of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonFeb 15
Snow daysSnowfall (cm)
Jan619
Feb625
Mar312
Apr13
May00
Jun00
Jul00
Aug00
Sep00
Oct02
Nov28
Dec517

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Józefów, 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 27 and lasts for 6.5 months, ending around October 11. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 50% of the time on average.

The cloudier part of the year begins around October 12 and lasts for 5.5 months, ending around March 26. 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 16 · 52%Dec 14 · 16%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2179
Feb2179
Mar2971
Apr4060
May4357
Jun4258
Jul4555
Aug5050
Sep3961
Oct3169
Nov1981
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 14, brings about 16 h 30 min of light; the shortest, around December 13, only 7 h 30 min — a swing of roughly 9 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.07:453:44
Feb9.57:034:37
Mar11.56:005:30
Apr13.64:476:24
May15.43:487:15
Jun16.43:217:50
Jul16.03:397:43
Aug14.44:256:53
Sep12.45:175:41
Oct10.46:104:30
Nov8.57:063:35
Dec7.67:463:17

Sunny days

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

Józefów averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 9 days.

The sunnier stretch runs 2.8 months, from around Mar 25 to Jun 18. The sunniest month is April, with roughly 7 sunny days (gloomy).

The greyest month is December, down near 3 sunny days — about 60% fewer than the April peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedApr 289 daysDec 92 days
Sunny daysSky
Jan4Gloomy
Feb3Gloomy
Mar5Gloomy
Apr7Gloomy
May8Gloomy
Jun6Gloomy
Jul7Gloomy
Aug9Mixed
Sep7Gloomy
Oct6Gloomy
Nov3Gloomy
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 Józefów, 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 3. The muggiest month is July, when the air feels humid, muggy or worse about 26% of the time.

The most comfortable stretch runs from around September 4 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 26 · 100%Jul 28 · 68%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May90910
Jun6820111
Jul4331215
Aug4931163
Sep821520
Oct98200
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 Józefów is typically light breeze, near 12 km/h, and varies little with the seasons.

The windier part of the year lasts 6.2 months, from around Oct 2 to Apr 7. The windiest month is January, averaging about 14 km/h (light breeze).

The calmer part of the year runs from around Apr 8 to Oct 1, with August the calmest month at about 11 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 29 · 14 km/hAug 1 · 10 km/h
Wind speed (km/h)Feels
Jan14light breeze
Feb14light breeze
Mar14light breeze
Apr12light breeze
May11calm
Jun11calm
Jul11calm
Aug11calm
Sep12calm
Oct13light breeze
Nov13light breeze
Dec14light breeze

Best time to visit Józefów

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid May, Józefów 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 Józefów 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 17 · 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
Mar0.9poor
Apr3.9fair
May5.9good
Jun6.2good
Jul6.5good
Aug6.8good
Sep5.8good
Oct3.3poor
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 Józefów 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 8 · 6.1

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 Józefów, 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 1°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Józefów sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

UV index (midday) in Józefów 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 Józefów 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 7 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

Average hourly UV index in Józefów

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 June the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 1.5 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
Mar10
Apr4.50
May6.50
Jun7.51.5
Jul70
Aug6.50
Sep4.50
Oct00
Nov00
Dec00

Air quality in Józefów 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 Józefów is worst in March — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2216 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar17Moderate
Apr16Moderate
May15Moderate
Jun16Moderate
Jul15Moderate
Aug15Moderate
Sep14Moderate
Oct12Good
Nov12Good
Dec10Good
Almanac & agriculture

Growing season

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

The growing season in Józefów typically lasts about 250 days, from around March 21 to November 25 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 22 to October 15.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2150%Apr 2290%Oct 1590%Nov 2550%
Frost-free chance (%)Frost nights
Jan2531
Feb2728
Mar4731
Apr8422
May990
Jun1000
Jul1000
Aug1000
Sep1000
Oct8919
Nov6430
Dec3431

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. Józefów banks about 1,021 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
Apr10
May121
Jun213
Jul285
Aug268
Sep118
Oct7
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.

Józefów receives about 3.0 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.5 and 5.5 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 0.5 kWh/m² — roughly 90% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 65.5 kWhDec 170.5 kWh
Solar energy (kWh/m²)Level
Jan0.7Dim
Feb1.4Dim
Mar2.7Moderate
Apr4.2Bright
May5.2Bright
Jun5.5Bright
Jul5.3Bright
Aug4.5Bright
Sep3.0Moderate
Oct1.7Dim
Nov0.8Dim
Dec0.5Dim

Where is Józefów?

Józefów sits at 52.1°N, 21.2°E, 93 m above sea level, in Poland. The nearest listed city is Otwock, 4.0 km away.

Topography around Józefów

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

Within 3 km, the terrain around Józefów has only modest variations in elevation — a maximum elevation change of 39 m around an average of 101 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, only modest variations in elevation — a maximum elevation change of 172 m.

The land around Józefów is covered by trees (88%) within 3 km, trees (60%) and grassland (20%) within 16 km, and trees (43%), cropland (28%) and grassland (25%) within 80 km.

3 km
39 m
16 km
93 m
80 km
172 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Otwock 4.0 km · Wawer 8.0 km · Konstancin-Jeziorna 9.0 km · Kabaty 11 km · Ursynów 13 km · Sulejówek 13 km · Wesoła 13 km · Rembertów 15 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 Józefów (52.1371°, 21.2359°, elevation 93 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).