Avg High
Whistler in August
Avg Low
Rain
Daylight
14h
What to expect
Whistler is in late summer during August, with the season well established by this point. It leans warmly comfortable through the day, and a gentle drop-off once the sun goes down. Daylight stays generous for longer outdoor plans. Conditions tend to feel steady, which makes planning simple.
August in context
How it compares to the rest of the year in Whistler.
Hottest (avg)
#1 / 12
Wettest (avg)
#11 / 12
Daylight Hours
#4 / 12
Windiest (avg)
#7 / 12
Highest UV
#4 / 12
Most Humid
#12 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 14.4 h
- UV index (max)
- 7
- Typical sun hours
- 05:03 - 19:27
Rain & Snow
- Total rain
-
- Rainy days
- 12 days
- Cloud cover (avg)
- 56%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 71%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for August. Typical high 24.3°C and low 13.7°C.
Typical disruptions in August
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in August.
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 17% of days (5.4 days/month) in August. Historical risk signal only, not a day-by-day forecast.
5.4 days / month
~17% of days
Why this matters
- Expected days 5.4 days / month
- Probability ~17% of days
- Intensity Up to ~31mm (P95)
Rain disruption risk appears on ~5 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 17% of days (5.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
5.3 days / month
~17% of days
Why this matters
- Expected days 5.3 days / month
- Probability ~17% of days
- Intensity Up to ~31mm (P95)
Washout conditions are possible on ~5 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 8% of days (2.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
2.5 days / month
~8% of days
Why this matters
- Expected days 2.5 days / month
- Probability ~8% of days
- Intensity Up to ~38mm (P95)
Heavy rain is possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 4% of days (1.1 days/month) in August. Historical risk signal only, not a day-by-day forecast.
1.1 days / month
~4% of days
Why this matters
- Expected days 1.1 days / month
- Probability ~4% of days
- Intensity Up to ~88km/h (P95)
Stormy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 3% of days (1.0 days/month) in August. Historical risk signal only, not a day-by-day forecast.
1.0 days / month
~3% of days
Why this matters
- Expected days 1.0 days / month
- Probability ~3% of days
- Intensity Up to ~90km/h (P95)
Strong gusts are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Heat Moderate
Hot days Measures: Hot days (>=30C). Observed about 6% of days (2.0 days/month) in August. Historical risk signal only, not a day-by-day forecast.
2.0 days / month
~6% of days
Why this matters
- Expected days 2.0 days / month
- Probability ~6% of days
- Intensity Up to ~34°C (P95)
Hot days are possible on ~2 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Show all disruptions (18 more)
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 1.2 days/month in August. Historical risk signal only, not a day-by-day forecast.
1.2 days / month
Probability unavailable
Why this matters
- Expected days 1.2 days / month
- Probability —
- Intensity Up to ~35mm (P95)
Multi-day washout runs are possible on ~1 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Very heavy rain Measures: Very heavy rain days (>=25mm). Observed about 1% of days (0.4 days/month) in August. Historical risk signal only, not a day-by-day forecast.
0.4 days / month
~1% of days
Why this matters
- Expected days 0.4 days / month
- Probability ~1% of days
- Intensity Up to ~55mm (P95)
Very heavy rain is possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Severe gusts Measures: Severe gust days (>=80 km/h). Observed about 1% of days (0.2 days/month) in August. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
~1% of days
Why this matters
- Expected days 0.2 days / month
- Probability ~1% of days
- Intensity Up to ~100km/h (P95)
Severe gusts are possible on ~0 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Visibility Moderate
Fog-likely signal Measures: Fog-likely visibility proxy. Observed about 6% of days (1.7 days/month) in August. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
~6% of days
Why this matters
- Expected days 1.7 days / month
- Probability ~6% of days
- Intensity Up to ~98% (P95)
Fog-likely conditions are possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Moderate
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 3% of days (1.0 days/month) in August. Historical risk signal only, not a day-by-day forecast.
1.0 days / month
~3% of days
Why this matters
- Expected days 1.0 days / month
- Probability ~3% of days
- Intensity Up to ~35°C (P95)
Feels-like heat >=32C is possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Cold Moderate
Cold feels-like nights Measures: Cold feels-like nights (min <=5C). Observed about 1% of days (0.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
~1% of days
Why this matters
- Expected days 0.5 days / month
- Probability ~1% of days
- Intensity Up to ~5°C (P95)
Cold feels-like nights are possible on ~0 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 50% of days (15.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
15.5 days / month
~50% of days
Why this matters
- Expected days 15.5 days / month
- Probability ~50% of days
- Intensity Up to ~99% (P95)
Cloudy skies are possible on ~15 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 47% of days (14.6 days/month) in August. Historical risk signal only, not a day-by-day forecast.
14.6 days / month
~47% of days
Why this matters
- Expected days 14.6 days / month
- Probability ~47% of days
- Intensity Up to ~21mm (P95)
Measurable rain is possible on ~15 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 36% of days (11.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
11.3 days / month
~36% of days
Why this matters
- Expected days 11.3 days / month
- Probability ~36% of days
- Intensity Up to ~23h (P95)
Several rainy hours are possible on ~11 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 34% of days (10.5 days/month) in August. Historical risk signal only, not a day-by-day forecast.
10.5 days / month
~34% of days
Why this matters
- Expected days 10.5 days / month
- Probability ~34% of days
- Intensity Up to ~69km/h (P95)
Gusty conditions are possible on ~11 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 29% of days (9.0 days/month) in August. Historical risk signal only, not a day-by-day forecast.
9.0 days / month
~29% of days
Why this matters
- Expected days 9.0 days / month
- Probability ~29% of days
- Intensity Up to ~24h (P95)
Wet-most-of-day conditions are possible on ~9 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 26% of days (8.2 days/month) in August. Historical risk signal only, not a day-by-day forecast.
8.2 days / month
~26% of days
Why this matters
- Expected days 8.2 days / month
- Probability ~26% of days
- Intensity Up to ~96% (P95)
High humidity is possible on ~8 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 26% of days (8.1 days/month) in August. Historical risk signal only, not a day-by-day forecast.
8.1 days / month
~26% of days
Why this matters
- Expected days 8.1 days / month
- Probability ~26% of days
- Intensity Up to ~100% (P95)
Mostly cloudy skies are possible on ~8 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 9% of days (2.7 days/month) in August. Historical risk signal only, not a day-by-day forecast.
2.7 days / month
~9% of days
Why this matters
- Expected days 2.7 days / month
- Probability ~9% of days
- Intensity Up to ~100% (P95)
Overcast skies are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Other Minor
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data Measures: Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data. Observed about 6% of days (1.7 days/month) in August. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
~6% of days
Why this matters
- Expected days 1.7 days / month
- Probability ~6% of days
- Intensity Up to ~98 (P95)
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data is possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Snow Minor
Snow days Measures: Snow days (>=0.1mm snowfall). Observed about 1% of days (0.3 days/month) in August. Historical risk signal only, not a day-by-day forecast.
0.3 days / month
~1% of days
Why this matters
- Expected days 0.3 days / month
- Probability ~1% of days
- Intensity Up to ~2.6mm (P95)
Snowfall is possible on ~0 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat Minor
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 0.2 days/month in August. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
Probability unavailable
Why this matters
- Expected days 0.2 days / month
- Probability —
- Intensity Up to ~34°C (P95)
Heatwave runs are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Feels-like heatwave Measures: Feels-like heatwave runs (>=3 days). Observed about 0.2 days/month in August. Historical risk signal only, not a day-by-day forecast.
0.2 days / month
Probability unavailable
Why this matters
- Expected days 0.2 days / month
- Probability —
- Intensity Up to ~35°C (P95)
Feels-like heatwave runs are possible on ~0 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Frequently asked questions
Is August a good time to visit Whistler?
Typical August days in Whistler reach highs of 23°C (73°F) with nights around 12°C (54°F). It usually feels warm by day and cool after dark. It is one of the drier months, which suits outdoor exploring and sightseeing.
What are temperatures like in August?
Daytime temperatures in August typically peak near 23°C (73°F), while nights drop to around 12°C (54°F). Expect warm afternoons and cool evenings.
How much does it rain in August?
Rainfall in August averages 79 mm (3.1 in) across roughly 12 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in August?
You can expect about 14 hours of daylight in August. Sunrise is typically around 05:03 and sunset near 19:27. You get long days with comfortable amounts of daylight.
How strong is the sun in August?
UV levels are often high (around 7). Regular sunscreen and a hat are recommended.
Is it windy in August?
In August, average wind speeds are around 4 km/h (2 mph), with gusts on the windiest days reaching about 50 km/h (31 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.