Whistler in Summer
In summer (June, July and August), Whistler sees average daytime highs around 16°C and overnight lows near 6°C, with 288 mm of precipitation over about 38 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 12°C in early June to 16°C by late August. The sky is clear or mostly clear about 26% of the time across summer, and the air most often feels dry.
Summer is Whistler's best season of the year to visit on our travel score. For the whole year in context, see Whistler's year-round climate.
- Avg daytime high
- 16°C
- warmest season of the year
- Avg overnight low
- 6°C
- Precipitation
- 288 mm
- 38 wet days
- Avg wind
- 4 km/h
- Travel score
- 4.8
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Whistler in Summer
Over the season highs climb from about 12°C in early June to 16°C by late August.
A typical summer day in Whistler reaches about 16°C and drops to 6°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Whistler
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Whistler weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -3° / -8° | 350 | 19.2 | 19.8 | 8.3 | 0.0 |
| Feb | -1° / -7° | 215 | 15.3 | 15.9 | 9.7 | 0.0 |
| Mar | 1° / -5° | 291 | 19.9 | 19.9 | 11.5 | 0.0 |
| Apr | 5° / -3° | 169 | 16.4 | 15.4 | 13.5 | 0.1 |
| May | 9° / 1° | 125 | 15.8 | 7.5 | 15.2 | 1.6 |
| Jun | 13° / 4° | 122 | 16.9 | 2.1 | 16.1 | 3.0 |
| Jul | 17° / 7° | 80 | 10.8 | 0.1 | 15.7 | 5.6 |
| Aug | 18° / 7° | 85 | 10.3 | 0.1 | 14.3 | 5.7 |
| Sep | 13° / 4° | 135 | 11.8 | 1.9 | 12.4 | 3.6 |
| Oct | 6° / -1° | 273 | 17.3 | 12.3 | 10.5 | 0.5 |
| Nov | -1° / -6° | 391 | 19.8 | 18.9 | 8.8 | 0.0 |
| Dec | -4° / -8° | 342 | 19.1 | 19.7 | 7.9 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 26% of the time across summer.
Chance of precipitation in Summer
Whistler gets around 288 mm of rain and snow over 38 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 48 min in early June to 13 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.6 kWh/m².
Hazard calendar for Whistler
None of Whistler's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Whistler's rainy season runs October–March, when most of the year's rain falls.
Is summer a good time to visit Whistler?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Whistler for sightseeing.
What to pack for Whistler in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Whistler sees daytime highs around 16°C and nights near 6°C. Pack rain gear. Worth having: a warm layer and sun protection. About 38 days see rain.
UV index in Whistler in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Whistler peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 4 | 5 | 8 | 7 | 9 | 7 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | Very high | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Whistler?
Whistler sits at 50.1°N, 123.0°W, 0 m above sea level, in Canada. The nearest listed city is Squamish, 49 km away.
Topography around Whistler
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Whistler.
Within 3 km, the terrain around Whistler has large variations in elevation — a maximum elevation change of 852 m around an average of 826 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,493 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,912 m.
The land around Whistler is covered by trees (79%) within 3 km, trees (70%) within 16 km, and trees (62%) within 80 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
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 Whistler (50.1182°, -122.954°, elevation 0 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.