August 25 is generally a great time to visit Whistler. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 22°C weather. Whistler is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Whistler
Currency
CAD
$ Canadian dollar
Language
English
+1 more
Driving
Right side
Safety
Very High Safety
GPI: 1.389
Whistler Weather Forecast for August 25
"Mild & Comfortable. Expect average highs of 21.7°C. 23% chance of rain."
What to Wear in Whistler in August
Based on historical data for August 25, Whistler typically experiences temperatures between 11.3°C and 21.7°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Whistler
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21.7°C
Daytime Peak
Average Low
11.3°C
Nighttime Low
Feels Like
22°C
☀️ Feels accurate
Rain Chance
23%
Avg 2.1mm if it rains
Cloud Cover
57%
Overcast
Pressure
1015.9 hPa
Low volatility
Whistler Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.4°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Canada
Flight Traffic
Busy
63/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~277
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Whistler
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:17
☀️ Noon
12:15
🌇 Sunset
19:13
⏱️ Daylight
13h 55m
Wind Speed
6.8 km/h
Light breeze
Sunshine
10.9 hrs
Direct Sun (Cloud-free)
Humidity
72%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Whistler
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Whistler
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Whistler on August 25 averages 21.7°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Whistler Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 18
22.9°C • 18% rain
Score
99
August 19
22.6°C • 17% rain
Score
99
August 20
22°C • 20% rain
Score
99
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Whistler Worth Visiting on August 25?
Planning a trip to Whistler on August 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.7°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 277 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Canada, including COVID-19.
📊 Historical Extremes: The hottest August 25 recorded in the last 30 years saw temperatures hit 32.3°C in 2025, while the coldest dropped to 7.4°C in 2020.