Climate and average weather in Łapy

In Łapy, 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 Łapy typically varies from -5°C to 24°C, and is rarely below -15°C or above 30°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 Łapy for warm-weather activities is from early May to late September.

Hottest
Jul
24°
Coldest
Jan
-5°
Wettest
Jul
82 mm
Driest
Feb
37 mm
Rain / yr
641 mm
126 wet days
Daylight
7.3–16.7 h
shortest–longest
Elevation
120 m
53.0°N
Clearest
Aug
59% cloud

Łapy is city of Poland.

Density
1,354/km²
people per km²
Founded
1925

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

Łapy 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 Łapy, 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 12, with daily high temperatures above 18°C. The hottest month of the year in Łapy 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 8, with daily high temperatures below 4°C. The coldest month of the year in Łapy 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 May.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan0-5
Feb1-4
Mar6-1
Apr133
May198
Jun2211
Jul2414
Aug2313
Sep189
Oct114
Nov51
Dec1-3

How hot and cold Łapy 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 29), with roughly 176 freezing days a year (feels-like at or below 0°C) 25 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
Feb11-10-4
Mar66-6-1
Apr131303
May181968
Jun21221111
Jul24241314
Aug23231313
Sep181879
Oct111114
Nov55-31
Dec11-8-3

Average hourly temperature in Łapy

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

Łapy 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-0° / -5°399.977.90.0
Feb / -4°379.26.39.50.0
Mar / -2°4110.33.711.50.5
Apr13° / 469.71.213.63.5
May19° / 6812.20.115.55.6
Jun22° / 11°7412.2016.66.1
Jul24° / 14°8212.3016.26.5
Aug23° / 13°6610.7014.56.7
Sep18° / 589.3012.45.6
Oct11° / 489.70.510.32.9
Nov / 399.638.40.4
Dec / -3°4310.45.87.40.0

Chance of rain

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

Łapy gets about 641 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 3.4 months, from around May 3 to Aug 15, peaking in June at about 44% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 21.

July is the wettest month by volume, with 82 mm over about 12 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 23 · 44%Sep 21 · 29%
Rain on a day (%)Rain days
Jan3110
Feb339
Mar3310
Apr3210
May3912
Jun4112
Jul4012
Aug3511
Sep319
Oct3110
Nov3210
Dec3410

Monthly rainfall

Over a full year, Łapy collects about 641 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 35% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec393741466874826658483943
Rainfall (mm)Rain daysSnow days
Jan39107
Feb3796
Mar41104
Apr46101
May68120
Jun74120
Jul82120
Aug66110
Sep5890
Oct48101
Nov39103
Dec43106

Snow in Łapy

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.

Łapy averages about 28 snowy days a year. Snow season runs roughly Oct 19 to Apr 21 — about 6.1 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 105 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonFeb 17
Snow daysSnowfall (cm)
Jan722
Feb629
Mar415
Apr15
May00
Jun00
Jul00
Aug00
Sep00
Oct12
Nov310
Dec622

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Łapy, 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 24 and lasts for 6.7 months, ending around October 14. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 47% of the time on average.

The cloudier part of the year begins around October 15 and lasts for 5.3 months, ending around March 23. The cloudiest month is December, when it is overcast or mostly cloudy 86% 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 · 49%Dec 11 · 13%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1783
Feb1981
Mar2872
Apr3961
May4456
Jun4357
Jul4555
Aug4753
Sep3961
Oct3169
Nov1783
Dec1486

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 17, brings about 16 h 42 min of light; the shortest, around December 17, only 7 h 18 min — a swing of roughly 9 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan7.97:423:33
Feb9.56:594:28
Mar11.55:545:23
Apr13.64:386:19
May15.53:387:12
Jun16.63:097:48
Jul16.23:287:40
Aug14.54:166:49
Sep12.45:105:35
Oct10.36:054:22
Nov8.47:033:24
Dec7.47:443:05

Sunny days

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

Łapy averages about 5 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 6.9 months, from around Mar 21 to Oct 17. The sunniest month is April, with roughly 7 sunny days (gloomy).

The greyest month is November, down near 3 sunny days — about 65% fewer than the April peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedApr 299 daysNov 222 days
Sunny daysSky
Jan3Gloomy
Feb3Gloomy
Mar5Gloomy
Apr7Gloomy
May7Gloomy
Jun6Gloomy
Jul7Gloomy
Aug8Gloomy
Sep6Gloomy
Oct5Gloomy
Nov3Gloomy
Dec2Gloomy

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 Łapy, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.1 months, from around May 30 to September 1. The muggiest month is July, when the air feels humid, muggy or worse about 23% of the time.

The most comfortable stretch runs from around September 2 to May 29, 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 30 · 72%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May91820
Jun692091
Jul4532184
Aug5429142
Sep861220
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 Łapy 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 Sep 29 to Apr 3. The windiest month is January, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Apr 4 to Sep 28, with August the calmest month at about 11 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 30 · 15 km/hAug 1 · 10 km/h
Wind speed (km/h)Feels
Jan15light breeze
Feb14light breeze
Mar14light breeze
Apr12light breeze
May12calm
Jun11calm
Jul11calm
Aug11calm
Sep12light breeze
Oct13light breeze
Nov14light breeze
Dec14light breeze

Best time to visit Łapy

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid May, Łapy 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 Łapy for general outdoor tourist activities is from early May to late September, with a peak score in the second week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 14 · 6.8

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
Mar0.6poor
Apr3.5fair
May5.6good
Jun6.1good
Jul6.5good
Aug6.7good
Sep5.6good
Oct2.9poor
Nov0.4poor
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 Łapy for hot-weather activities is from early July to late August, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 1 · 5.8

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 Łapy, 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, Łapy sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

UV index (midday) in Łapy 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 Łapy peaks around June 22 at about 6 (high) — a little sun protection helps at midday. 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 22UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low

Average hourly UV index in Łapy

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). 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
Mar00
Apr4.50
May6.50
Jun7.50
Jul70
Aug6.50
Sep40
Oct00
Nov00
Dec00
Almanac & agriculture

Growing season

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

The growing season in Łapy typically lasts about 238 days, from around March 28 to November 20 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 27 to October 10.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2850%Apr 2790%Oct 1090%Nov 2050%
Frost-free chance (%)Frost nights
Jan2131
Feb2228
Mar3831
Apr7827
May980
Jun1000
Jul1000
Aug1000
Sep990
Oct8522
Nov5630
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. Łapy banks about 900 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02004006008001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr4
May97
Jun191
Jul265
Aug246
Sep96
Oct1
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.

Łapy receives about 2.9 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.5 and 5.6 kWh/m².

The brighter stretch of the year lasts 5.8 months, from around Mar 22 to Sep 15. The brightest month is June, averaging about 5.5 kWh/m² (bright).

The dimmest month is December, down near 0.5 kWh/m² — roughly 91% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 65.6 kWhDec 180.5 kWh
Solar energy (kWh/m²)Level
Jan0.7Dim
Feb1.4Dim
Mar2.7Moderate
Apr4.2Bright
May5.2Bright
Jun5.5Bright
Jul5.3Bright
Aug4.4Bright
Sep2.9Moderate
Oct1.6Dim
Nov0.8Dim
Dec0.5Dim

Where is Łapy?

Łapy sits at 53.0°N, 22.9°E, 120 m above sea level, in Poland. The nearest listed city is Białystok, 25 km away.

ZambrówHajnówkaŁomżaSokółkaSiemiatyczeOstrów Mazowiecka

Topography around Łapy

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

Within 3 km, the terrain around Łapy has only modest variations in elevation — a maximum elevation change of 46 m around an average of 123 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 91 m; within 80 km, only modest variations in elevation — a maximum elevation change of 164 m.

The land around Łapy is covered by grassland (39%) and cropland (24%) within 3 km, cropland (38%), trees (30%) and grassland (28%) within 16 km, and trees (39%), cropland (36%) and grassland (23%) within 80 km.

3 km
46 m
16 km
91 m
80 km
164 m
treesgrasslandcroplandartificial surfaceswetland
Nearby: Białystok 25 km · Bielsk Podlaski 32 km · Zambrów 43 km · Hajnówka 54 km · Łomża 59 km · Sokółka 62 km · Siemiatycze 63 km · Ostrów Mazowiecka 70 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 Łapy (52.9911°, 22.8842°, elevation 120 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).