September 17 sees frequent showers in Whistler. Historical data shows a 41% chance of rain, so pack accordingly. Temperatures average 17°C. Whistler is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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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 September 17
"Mild & Comfortable. Expect average highs of 17.2°C. 41% chance of snow."
What to Wear in Whistler in September
Based on historical data for September 17, Whistler typically experiences temperatures between 8.4°C and 17.2°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 41% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Whistler
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
17.2°C
Daytime Peak
Average Low
8.4°C
Nighttime Low
Feels Like
17.2°C
🌤️ Feels accurate
Snow Chance
41%
Avg 4.4mm if it snows
Snowfall
0.2 cm
~41% chance
Pressure
1014.5 hPa
Medium 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 15 for extended outdoor time
Type I-II
🔴 38 min to burn
Type III-IV
🟡 57 min to burn
Type V-VI
🟢 95 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
13.5°C
Pleasant
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
High
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~415
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Whistler
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:52
☀️ Noon
12:07
🌇 Sunset
18:23
⏱️ Daylight
12h 31m
Wind Speed
6.2 km/h
Light breeze
Sunshine
8.5 hrs
Direct Sun (Cloud-free)
Humidity
79%
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
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
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 September 17 averages 17.2°C with a 41% precipitation probability. Wedding/Outdoor Event Score: 80/100."
— 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
September 11
20.2°C • 20% rain
Score
98
September 10
20.1°C • 23% rain
Score
97
September 12
19.8°C • 24% rain
Score
97
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 17) in other destinations
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📍 Is Whistler Worth Visiting on September 17?
Planning a trip to Whistler on September 17? 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 17.2°C with a 41% historical precipitation risk.
✈️ Travel Logistics: Approximately 415 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 September 17 recorded in the last 30 years saw temperatures hit 26.7°C in 2020, while the coldest dropped to 4.4°C in 2022.