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Squamish climate by month
What the weather is like
Squamish has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 24° and nights 13°. December is the coolest month, with highs of 4° and lows of 0°. The difference between the warmest and the coolest month is about 16°.
About 2,724 mm of precipitation falls in an average year. December is the wettest month (372 mm, 24 wet days) and July the driest (63 mm, 11 wet days). Cloud cover ranges from 33% in August to 62% in November.
The sea reaches about 18° in August. Sea temperatures lag the air by a month or two, so late summer is usually warmer for swimming than early summer.
Compared with Ottawa, the capital, Squamish is 2.5° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 24° · July
- Coldest nights
- 0° · December
- Wettest month
- December
- Driest month
- July
- Clearest skies
- August · 33% cloud
- Warmest sea
- 18° · August
- Longest day
- 16 h 18 min
- Shortest day
- 8 h 09 min
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columns, sea temperature lineTemperature curve
Average high, low and seaDaylight
Hours between sunrise and sunset on the 15th of each monthClimate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 5° | 8° | 11° | 15° | 19° | 21° | 24° | 24° | 21° | 14° | 8° | 4° |
| Average low | 0° | 1° | 2° | 4° | 8° | 11° | 13° | 13° | 10° | 6° | 2° | 0° |
| Precipitation | 384 mm | 272 mm | 262 mm | 187 mm | 124 mm | 100 mm | 63 mm | 74 mm | 120 mm | 331 mm | 435 mm | 372 mm |
| Wet days (≥1 mm) | 21 | 17.3 | 19.5 | 15.5 | 18.2 | 18.5 | 11 | 11 | 12.3 | 18.8 | 21 | 23.7 |
| Cloud cover | 59% | 52% | 52% | 48% | 45% | 44% | 34% | 33% | 39% | 54% | 62% | 60% |
| Sea temperature | 7° | 7° | 8° | 10° | 13° | 15° | 17° | 18° | 15° | 12° | 9° | 8° |
| Daylight | 8h 36 | 10h 09 | 11h 51 | 13h 45 | 15h 23 | 16h 18 | 15h 54 | 14h 28 | 12h 38 | 10h 49 | 9h 06 | 8h 09 |
| Month score | 13 | 16 | 20 | 43 | 61 | 61 | 72 | 73 | 67 | 37 | 12 | 13 |