Squamish weather in August

In August, Squamish sees average daytime highs of 18°C and overnight lows near 10°C, with 106 mm of rain across 10.8 wet days and about 14.2 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 36% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 hours at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Squamish's 1st-clearest and 10th-windiest month. For the whole year in context, see Squamish's year-round climate.

Daytime high
18°
1st warmest
Overnight low
10°
12th coldest
Rainfall
106 mm
10.8 wet days
Daylight
14 h 18 min
5:09 AM – 7:24 PM
Cloud cover
53%
1st clearest
Wind
4 km/h
10th windiest
Solar energy
5.22 kWh/m²
Travel score
5.9
out of 10
Air quality
Excellent
PM2.5 5 µg/m³ · 2019

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 17°C by the end.

A typical August day in Squamish reaches about 18°C in the afternoon and slips back to 10°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11910
21910
31910
41910
51910
61910
71910
81910
91910
101910
111910
121910
131910
141910
151910
161810
171810
181810
191810
201810
211810
221810
231810
24179
25179
26179
27179
28179
29179
30179
31179

How August really feels in Squamish

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August 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 August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°38019.3198.40.0
Feb / -3°23515.315.19.80.0
Mar / -2°30819.418.511.50.0
Apr / 19216.513.313.40.6
May11° / 13215.55.415.12.3
Jun14° / 12716.71.2163.4
Jul18° / 8811.2015.75.7
Aug18° / 10°10610.8014.25.9
Sep15° / 15011.90.912.44.3
Oct / 29417.18.510.51.4
Nov / -1°4162017.28.80.0
Dec / -3°37419.519.580.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36238
46238
56040
66040
75941
85842
95743
105743
115644
125446
135446
145347
155248
165248
175248
185149
195149
205050
214951
224852
234753
244852
254753
264753
274654
284654
294654
304654
314753

Chance of precipitation in August

Any precipitation

Squamish gets around 106 mm of rain over 10.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
128
228
329
429
530
630
731
831
932
1032
1132
1233
1333
1433
1533
1634
1734
1834
1935
2035
2136
2236
2337
2438
2538
2639
2739
2839
2939
3039
3139

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1919
2919
3928
4928
5928
6928
7928
8928
9919
10919
11919
12919
13919
14919
15919
16919
17928
18928
19928
20937
21937
22946
23955
24955
25964
26973
27973
28982
29982
30991
31991

Wind in August

Winds average 4 km/h in August.

Across August, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 hours at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 4:47 AM to 5:32 AM, and sunset from 7:50 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.04:477:50
215.04:497:49
314.94:507:47
414.94:517:45
514.84:537:44
614.84:547:42
714.74:567:41
814.74:577:39
914.64:597:37
1014.65:007:35
1114.55:027:34
1214.55:037:32
1314.45:057:30
1414.45:067:28
1514.35:087:26
1614.35:097:24
1714.25:117:22
1814.15:127:21
1914.15:147:19
2014.05:157:17
2114.05:177:15
2213.95:187:13
2313.85:207:11
2413.85:217:08
2513.75:237:06
2613.75:247:04
2713.65:267:02
2813.55:277:00
2913.55:296:58
3013.45:306:56
3113.45:326:54

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.22 kWh/m².

For context, solar energy here swings from a low near 0.79 kWh/m² to a high of 6.04 kWh/m² in July across the year — August's 5.22 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.0Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.6Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in August

Hazard calendar for Squamish

In seasonPeak

None of Squamish's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Squamish's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Squamish?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
1st-best month of the year
2.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Squamish for sightseeing.

What to pack for Squamish in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Squamish sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Squamish in August

The nearest coast averages about 18°C in August — 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.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan7Bracing
Feb7Bracing
Mar8Bracing
Apr10Bracing
May13Bracing
Jun15Cool
Jul17Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec8Bracing

UV index in Squamish in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

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.

3 km
862 m
16 km
2,258 m
80 km
2,830 m
treesgrasslandartificial surfacesbare terrainsnow and icewatermoss and lichen
August weather nearby: West Vancouver 41 km · Central Lonsdale 42 km · North Vancouver 43 km · Lower Lonsdale 43 km · West End 46 km · Downtown Vancouver 46 km · Downtown Eastside 47 km · Chinatown 47 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 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).