Squamish in Summer
In summer (June, July and August), Squamish sees average daytime highs around 17°C and overnight lows near 9°C, with 321 mm of precipitation over about 39 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 13°C in early June to 17°C by late August. The sky is clear or mostly clear about 29% of the time across summer, and the air most often feels dry.
Summer is Squamish's best season of the year to visit on our travel score. For the whole year in context, see Squamish's year-round climate.
- Avg daytime high
- 17°C
- warmest season of the year
- Avg overnight low
- 9°C
- Precipitation
- 321 mm
- 39 wet days
- Avg wind
- 4 km/h
- Travel score
- 5.0
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Squamish in Summer
Over the season highs climb from about 13°C in early June to 17°C by late August.
A typical summer day in Squamish reaches about 17°C and drops to 9°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Squamish
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.
Squamish 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 | 0° / -3° | 380 | 19.3 | 19 | 8.4 | 0.0 |
| Feb | 2° / -3° | 235 | 15.3 | 15.1 | 9.8 | 0.0 |
| Mar | 4° / -2° | 308 | 19.4 | 18.5 | 11.5 | 0.0 |
| Apr | 7° / 0° | 192 | 16.5 | 13.3 | 13.4 | 0.6 |
| May | 11° / 3° | 132 | 15.5 | 5.4 | 15.1 | 2.3 |
| Jun | 14° / 6° | 127 | 16.7 | 1.2 | 16 | 3.4 |
| Jul | 18° / 9° | 88 | 11.2 | 0 | 15.7 | 5.7 |
| Aug | 18° / 10° | 106 | 10.8 | 0 | 14.2 | 5.9 |
| Sep | 15° / 7° | 150 | 11.9 | 0.9 | 12.4 | 4.3 |
| Oct | 9° / 3° | 294 | 17.1 | 8.5 | 10.5 | 1.4 |
| Nov | 3° / -1° | 416 | 20 | 17.2 | 8.8 | 0.0 |
| Dec | 0° / -3° | 374 | 19.5 | 19.5 | 8 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 29% of the time across summer.
Chance of precipitation in Summer
Squamish gets around 321 mm of rain and snow over 39 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 Squamish
None of Squamish's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Squamish's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Squamish?
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 Squamish for sightseeing.
What to pack for Squamish in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Squamish sees daytime highs around 17°C and nights near 9°C. Pack rain gear and sun protection. Worth having: a warm layer. About 39 days see rain.
Sea temperature near Squamish in Summer
The nearest coast averages about 17°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 39 km away) is warmest in August at about 18°C and coldest in January near 7°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 7 | 7 | 8 | 10 | 13 | 15 | 17 | 18 | 15 | 12 | 9 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 7 | Bracing |
| Feb | 7 | Bracing |
| Mar | 8 | Bracing |
| Apr | 10 | Bracing |
| May | 13 | Bracing |
| Jun | 15 | Cool |
| Jul | 17 | Cool |
| Aug | 18 | Cool |
| Sep | 15 | Cool |
| Oct | 12 | Bracing |
| Nov | 9 | Bracing |
| Dec | 8 | Bracing |
UV index in Squamish 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 Squamish peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 | 7 | 6 | 8 | 6 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | 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 | 7 | High |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Squamish?
Squamish sits at 49.7°N, 123.2°W, 5 m above sea level, in Canada. The nearest listed city is West Vancouver, 41 km away.
Topography around Squamish
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Squamish.
Within 3 km, the terrain around Squamish has large variations in elevation — a maximum elevation change of 862 m around an average of 138 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,258 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,830 m.
The land around Squamish is covered by trees (66%) within 3 km, trees (79%) within 16 km, and trees (56%) and water (21%) 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 Squamish (49.6992°, -123.1563°, elevation 5 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.