Climate and average weather in Penticton

In Penticton, the summers are warm, fairly dry, and mostly clear and the winters are very cold, snowy, and mostly cloudy.

Best: late June to mid September

Over the course of the year, the temperature in Penticton typically varies from -6°C to 24°C, and is rarely below -15°C or above 31°C. July is the hottest month of the year, while December is the coldest.

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

Hottest
Jul
24°
Coldest
Dec
-6°
Wettest
Nov
84 mm
Driest
Aug
22 mm
Rain / yr
622 mm
121 wet days
Daylight
7.9–16.1 h
shortest–longest
Elevation
357 m
49.5°N
Clearest
Aug
43% cloud

Penticton is city in British Columbia, Canada.

Density
802/km²
people per km²
Founded
1908

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

Penticton 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 June to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.1 months, from June 14 to September 15, with daily high temperatures above 19°C. The hottest month of the year in Penticton is July, with an average high of 24°C and low of 11°C.

The cool season lasts 3.7 months, from November 13 to March 5, with daily high temperatures below 4°C. The coldest month of the year in Penticton is December, with an average low of -6°C and high of -1°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 13°C) in July.

-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-1-6
Feb2-5
Mar5-2
Apr101
May165
Jun198
Jul2411
Aug2412
Sep198
Oct103
Nov3-2
Dec-1-6

How hot and cold Penticton 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 -10°C (around January 1), with roughly 181 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)
Jan-1-1-9-6
Feb12-8-5
Mar55-5-2
Apr1010-11
May161645
Jun191978
Jul24241111
Aug24241212
Sep191988
Oct101013
Nov33-5-2
Dec-1-1-9-6

Average hourly temperature in Penticton

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 December, near -6°C.

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

Penticton 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° / -6°5812.612.98.40.0
Feb / -5°4410.49.59.80.0
Mar / -2°6112.28.811.50.4
Apr10° / 5010.23.913.42.4
May16° / 5510.10.815.15.0
Jun19° / 549.80.1166.1
Jul24° / 11°275.1015.67.9
Aug24° / 12°224.8014.28.0
Sep19° / 366.60.112.46.5
Oct10° / 62111.910.52.4
Nov / -2°8414.810.98.90.0
Dec-1° / -6°6713.814.680.0

Chance of rain

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

Penticton gets about 622 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 6.3 months, from around Oct 12 to Apr 20, peaking in November at about 51% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 29.

November is the wettest month by volume, with 84 mm over about 15 wet days; August is the driest, with 22 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetNov 16 · 51%Jul 29 · 12%
Rain on a day (%)Rain days
Jan4113
Feb3810
Mar3912
Apr3410
May3210
Jun3210
Jul175
Aug155
Sep227
Oct3511
Nov4815
Dec4514

Monthly rainfall

Over a full year, Penticton collects about 622 mm of rain across 121 wet days — roughly 52 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 84 mm, while August is the driest at just 22 mm. The three wettest months alone bring about 34% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec584461505554272236628467
Rainfall (mm)Rain daysSnow days
Jan581313
Feb441010
Mar61129
Apr50104
May55101
Jun54100
Jul2750
Aug2250
Sep3670
Oct62112
Nov841511
Dec671415

Snow in Penticton

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.

Penticton averages about 64 snowy days a year. Snow season runs roughly Oct 5 to May 21 — about 7.5 months.

December is snowiest, with roughly 14 days of snow and an estimated 66 cm of snowfall. Over the year that adds up to an estimated 272 cm of snow.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonDec 18
Snow daysSnowfall (cm)
Jan1352
Feb1040
Mar936
Apr413
May12
Jun00
Jul00
Aug00
Sep00
Oct28
Nov1155
Dec1566

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Penticton, 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 June 16 and lasts for 4.0 months, ending around October 14. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 69% of the time on average.

The cloudier part of the year begins around October 15 and lasts for 6.7 months, ending around May 6. 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 1 · 77%Dec 21 · 18%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2674
Feb3367
Mar3268
Apr3367
May4060
Jun4258
Jul6733
Aug6931
Sep5743
Oct4159
Nov2575
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 19, brings about 16 h 06 min of light; the shortest, around December 18, only 7 h 54 min — a swing of roughly 8 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.47:564:19
Feb9.87:195:07
Mar11.56:225:54
Apr13.45:146:43
May15.14:217:28
Jun16.03:588:00
Jul15.64:147:54
Aug14.24:557:10
Sep12.45:426:04
Oct10.56:294:58
Nov8.97:194:08
Dec8.07:563:53

Sunny days

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

Penticton averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 18 days.

The sunnier stretch runs 3.7 months, from around Jun 23 to Oct 14. The sunniest month is July, with roughly 14 sunny days (mixed).

The greyest month is December, down near 3 sunny days — about 81% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 3018 daysDec 172 days
Sunny daysSky
Jan4Gloomy
Feb5Gloomy
Mar5Gloomy
Apr5Gloomy
May7Gloomy
Jun7Gloomy
Jul14Mixed
Aug15Mixed
Sep12Mixed
Oct8Gloomy
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 Penticton, the air stays dry or comfortable essentially all year. Even in June, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdry
Dry (%)Comfortable (%)
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul991
Aug991
Sep1000
Oct1000
Nov1000
Dec1000

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.

Wind in Penticton is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmNov 20 · 7 km/hAug 8 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr6calm
May5calm
Jun5calm
Jul5calm
Aug5calm
Sep5calm
Oct6calm
Nov6calm
Dec6calm

Best time to visit Penticton

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early September, Penticton is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 Penticton for general outdoor tourist activities is from late June to mid September, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 28 · 8.2

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
Mar0.4poor
Apr2.4poor
May5.0fair
Jun6.2good
Jul7.9ideal
Aug7.9ideal
Sep6.4good
Oct2.5poor
Nov0.1poor
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 Penticton for hot-weather activities is from mid July to late August, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 30 · 7.5

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 Penticton, 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 and sun protection. In the cold season around December (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, Penticton sees daytime highs around 24°C and nights near 11°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

UV index (midday) in Penticton 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 Penticton peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 15UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5High
May7High
Jun6High
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Average hourly UV index in Penticton

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 8.5 hours a day reach index 3 (protection recommended), and 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
Mar30
Apr60
May7.52.5
Jun7.52.5
Jul8.55
Aug72.5
Sep40
Oct00
Nov00
Dec00

Air quality in Penticton 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 Penticton is worst in August — around 62 µg/m³ PM2.5 (unhealthy), about 12.8× the cleanest month (January, 5 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModeratePoorAug 1657 µg/m³Jan 215 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb5Good
Mar7Good
Apr7Good
May8Good
Jun8Good
Jul29Moderate
Aug62Unhealthy
Sep22Moderate
Oct39Poor
Nov44Poor
Dec6Good
Almanac & agriculture

Growing season

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

The growing season in Penticton typically lasts about 208 days, from around April 8 to November 1 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 11 to October 9.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonJan 110%Apr 850%May 1190%Oct 990%Nov 150%Dec 1510%
Frost-free chance (%)Frost nights
Jan1331
Feb1528
Mar2631
Apr6130
May939
Jun1000
Jul1000
Aug1000
Sep990
Oct8023
Nov3030
Dec1031

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. Penticton banks about 712 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

0200400600800JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May28
Jun107
Jul234
Aug240
Sep102
Oct0
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.

Penticton receives about 4.0 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.0 and 6.9 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 21 to Sep 21. The brightest month is July, averaging about 6.9 kWh/m² (intense).

The dimmest month is December, down near 1.1 kWh/m² — roughly 84% less than the July peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 166.9 kWhDec 171.0 kWh
Solar energy (kWh/m²)Level
Jan1.3Dim
Feb2.4Moderate
Mar3.7Moderate
Apr5.2Bright
May6.1Intense
Jun6.4Intense
Jul6.9Intense
Aug6.0Bright
Sep4.3Bright
Oct2.6Moderate
Nov1.4Dim
Dec1.1Dim

Where is Penticton?

Penticton sits at 49.5°N, 119.6°W, 357 m above sea level, in Canada. The nearest listed city is Okanagan Mission, 38 km away.

Topography around Penticton

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

Within 3 km, the terrain around Penticton has significant variations in elevation — a maximum elevation change of 439 m around an average of 410 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,680 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,336 m.

The land around Penticton is covered by artificial surfaces (40%) and grassland (34%) within 3 km, trees (66%) and grassland (23%) within 16 km, and trees (75%) and grassland (21%) within 80 km.

3 km
439 m
16 km
1,680 m
80 km
2,336 m
treesgrasslandartificial surfacesbare terrainwatermoss and lichen
Nearby: Okanagan Mission 38 km · West Kelowna 42 km · Kelowna 45 km · Rutland 49 km · Lake Country 60 km · Vernon 90 km · Salmon Arm 137 km · Kamloops 142 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 Penticton (49.4806°, -119.5858°, elevation 357 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).