Climate and average weather in Leamington

In Leamington, the summers are humid, warm, showery, and mostly clear and the winters are very cold, breezy, snowy, and mostly cloudy.

Best: late May to late September

Over the course of the year, the temperature in Leamington typically varies from -6°C to 26°C, and is rarely below -14°C or above 29°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 Leamington for warm-weather activities is from late May to late September.

Hottest
Jul
26°
Coldest
Jan
-5°
Wettest
Jun
101 mm
Driest
Feb
60 mm
Rain / yr
1001 mm
128 wet days
Daylight
8.9–15.1 h
shortest–longest
Elevation
188 m
42.1°N
Clearest
Aug
48% cloud

Leamington is municipality in Essex County, Ontario, Canada.

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

Leamington 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 Leamington, 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 26 to September 25, with daily high temperatures above 19°C. The hottest month of the year in Leamington is July, with an average high of 26°C and low of 22°C.

The cool season lasts 3.6 months, from December 7 to March 26, with daily high temperatures below 4°C. The coldest month of the year in Leamington is January, with an average low of -5°C and high of -1°C.

Days typically run about 4°C warmer than nights year-round.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-1-5
Feb-1-6
Mar2-2
Apr95
May1713
Jun2319
Jul2622
Aug2521
Sep2118
Oct1511
Nov85
Dec3-1

How hot and cold Leamington 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 -14°C (around January 29), with roughly 150 freezing days a year (feels-like at or below 0°C) 69 of them bitterly cold — worst in January.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-1-1-13-5
Feb-1-1-13-6
Mar22-8-2
Apr9915
May17171213
Jun23231919
Jul26262222
Aug25252121
Sep21211818
Oct14151011
Nov8805
Dec23-7-1

Average hourly temperature in Leamington

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 26°C, and coldest before dawn in January, near -5°C.

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

Leamington 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-1° / -5°7411.479.30.0
Feb-1° / -6°608.85.610.30.0
Mar / -2°739.7411.70.0
Apr / 9411.7113.11.6
May17° / 13°9112.1014.35.0
Jun23° / 19°10111.50156.6
Jul26° / 22°9211.1014.76.7
Aug25° / 21°8810.2013.77.1
Sep21° / 18°808.5012.36.9
Oct15° / 11°8410.8010.94.3
Nov / 8410.829.61.2
Dec / -1°7811.55.790.0

Chance of rain

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

Leamington gets about 1001 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 Mar 31 to Jul 3, peaking in May at about 41% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 9.

June is the wettest month by volume, with 101 mm over about 12 wet days; February is the driest, with 60 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 11 · 41%Sep 9 · 26%
Rain on a day (%)Rain days
Jan3611
Feb329
Mar3210
Apr3812
May4012
Jun3812
Jul3611
Aug3310
Sep299
Oct3411
Nov3611
Dec3712

Monthly rainfall

Over a full year, Leamington collects about 1001 mm of rain across 128 wet days — roughly 83 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 101 mm, while February is the driest at just 60 mm. The three wettest months alone bring about 29% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec7460739491101928880848478
Rainfall (mm)Rain daysSnow days
Jan74117
Feb6096
Mar73104
Apr94121
May91120
Jun101120
Jul92110
Aug88100
Sep8090
Oct84110
Nov84112
Dec78126

Snow in Leamington

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.

Leamington averages about 25 snowy days a year. Snow season runs roughly Nov 2 to Apr 22 — about 5.7 months.

January is snowiest, with roughly 7 days of snow and an estimated 30 cm of snowfall. Over the year that adds up to an estimated 116 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonJan 10
Snow daysSnowfall (cm)
Jan730
Feb627
Mar419
Apr14
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov29
Dec627

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Leamington, 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 May 1 and lasts for 5.7 months, ending around October 21. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 63% of the time on average.

The cloudier part of the year begins around October 22 and lasts for 6.3 months, ending around April 30. The cloudiest month is December, when it is overcast or mostly cloudy 80% 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 · 64%Jan 12 · 19%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2179
Feb2971
Mar3565
Apr3862
May4654
Jun5545
Jul6337
Aug6337
Sep5842
Oct4654
Nov3169
Dec2080

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 15 h 06 min of light; the shortest, around December 16, only 8 h 54 min — a swing of roughly 6 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.38:025:17
Feb10.37:365:54
Mar11.76:516:30
Apr13.15:577:05
May14.35:157:38
Jun15.04:598:02
Jul14.75:137:59
Aug13.75:437:26
Sep12.36:166:33
Oct10.96:505:41
Nov9.67:285:03
Dec9.07:584:55

Sunny days

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

Leamington averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 14 days.

The sunnier stretch runs 5.1 months, from around May 20 to Oct 21. The sunniest month is September, with roughly 13 sunny days (mixed).

The greyest month is January, down near 3 sunny days — about 76% fewer than the September peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightSep 114 daysJan 153 days
Sunny daysSky
Jan3Gloomy
Feb5Gloomy
Mar7Gloomy
Apr8Gloomy
May9Mixed
Jun12Mixed
Jul14Mixed
Aug14Mixed
Sep13Mixed
Oct10Mixed
Nov5Gloomy
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 Leamington, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.3 months, from around May 23 to September 29. The muggiest month is July, when the air feels humid, muggy or worse about 73% of the time.

The most comfortable stretch runs from around September 30 to May 22, 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 17 · 100%Jul 25 · 24%oppressivemuggydrycomfortablehumidcomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan10000000
Feb10000000
Mar10000000
Apr9910000
May70159510
Jun23222322100
Jul8192230202
Aug9192630141
Sep3522211740
Oct81134200
Nov9910000
Dec10000000

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 Leamington is typically breezy, near 22 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.2 months, from around Sep 30 to Mar 7. The windiest month is November, averaging about 26 km/h (breezy).

The calmer part of the year runs from around May 1 to Sep 29, with August the calmest month at about 18 km/h.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezywindyNov 27 · 27 km/hAug 7 · 17 km/h
Wind speed (km/h)Feels
Jan25breezy
Feb23breezy
Mar22breezy
Apr23breezy
May21breezy
Jun19light breeze
Jul18light breeze
Aug18light breeze
Sep20breezy
Oct24breezy
Nov26breezy
Dec26breezy

Best time to visit Leamington

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 31 · 7.4

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
Mar0.0poor
Apr1.6poor
May5.0fair
Jun6.6good
Jul6.8good
Aug7.1good
Sep6.8good
Oct4.3fair
Nov1.3poor
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 Leamington for hot-weather activities is from mid June to mid September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 11 · 6.4

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 Leamington, 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 26°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, rain gear and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Leamington sees daytime highs around 26°C and nights near 22°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

Sea temperature near Leamington

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 20 km away) is warmest in August at about 24°C and coldest in February near 1°C.

It's comfortable for a long swim from Jun 23 to Sep 23 — about 3.1 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan1Bracing
Feb1Bracing
Mar2Bracing
Apr6Bracing
May12Bracing
Jun19Cool
Jul24Refreshing
Aug24Warm
Sep21Refreshing
Oct15Cool
Nov9Bracing
Dec4Bracing

UV index (midday) in Leamington 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 Leamington peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 9Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Average hourly UV index in Leamington

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 8.5 hours a day reach index 3 (protection recommended), and 5.5 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
Mar40
Apr60
May7.53.5
Jun8.55.5
Jul85
Aug73
Sep5.50
Oct2.50
Nov00
Dec00

Air quality in Leamington 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 Leamington is worst in June — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1716 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr14Moderate
May16Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Almanac & agriculture

Growing season

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

The growing season in Leamington typically lasts about 259 days, from around March 27 to December 10 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 13 to November 15.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2750%Apr 1390%Nov 1590%Dec 1050%
Frost-free chance (%)Frost nights
Jan1731
Feb1428
Mar3331
Apr9011
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov8817
Dec4331

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. Leamington banks about 1,675 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

05001,0001,500JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr1
May145
Jun333
Jul426
Aug404
Sep280
Oct86
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.

Leamington receives about 4.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.4 and 6.8 kWh/m².

The brighter stretch of the year lasts 6.3 months, from around Mar 16 to Sep 22. The brightest month is June, averaging about 6.7 kWh/m² (intense).

The dimmest month is December, down near 1.5 kWh/m² — roughly 78% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 306.8 kWhDec 151.4 kWh
Solar energy (kWh/m²)Level
Jan1.9Dim
Feb3.0Moderate
Mar4.2Bright
Apr5.2Bright
May6.1Intense
Jun6.7Intense
Jul6.6Intense
Aug5.7Bright
Sep4.5Bright
Oct3.1Moderate
Nov1.9Dim
Dec1.4Dim

Where is Leamington?

Leamington sits at 42.1°N, 82.6°W, 188 m above sea level, in Canada. The nearest listed city is Kingsville, 12 km away.

Topography around Leamington

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

Within 3 km, the terrain around Leamington has only modest variations in elevation — a maximum elevation change of 49 m around an average of 188 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 63 m; within 80 km, only modest variations in elevation — a maximum elevation change of 184 m.

The land around Leamington is covered by cropland (31%), artificial surfaces (30%) and grassland (21%) within 3 km, cropland (42%) and water (40%) within 16 km, and water (53%) and cropland (24%) within 80 km.

3 km
49 m
16 km
63 m
80 km
184 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Kingsville 12 km · Tecumseh 38 km · LaSalle 44 km · Windsor 44 km · Detroit 48 km · Trenton 49 km · Wyandotte 49 km · Grosse Pointe Woods 51 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 2%

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 Leamington (42.0501°, -82.5998°, elevation 188 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).