30YearWeather
Banff, September 19
Banff street view during September
Historical Weather Analysis

Banff Weather on September 19 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

cloudy

14.5°C

High

3°C

Low

22%

Rain

🌤️ Feels like 14.4°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 19 is generally a great time to visit Banff. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 15°C weather. As it's peak season for Banff, we recommend booking your stay well in advance to secure the best rates.

Currency

CAD

$ Canadian dollar

Language

English

+1 more

Driving

Right side

Connect

All phone numbers must be preceded by a ...

Safety

Very High Safety

GPI: 1.389

Banff Weather Forecast for September 19

"Mild & Comfortable. Expect average highs of 14.5°C. 22% chance of snow."

What to Wear in Banff in September

Based on historical data for September 19, Banff typically experiences temperatures between 3°C and 14.5°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Banff

View Guide

Smart Suitcase

  • Heavy Coat
  • Scarf
  • Gloves

Average High

extreme-hot

14.5°C

Daytime Peak

Average Low

extreme-cold

3°C

Nighttime Low

Feels Like

partly-cloudy-day

14.4°C

🌤️ Feels accurate

Snow Chance

snow

22%

Avg 1.5mm if it snows

Snowfall

snow

0.7 cm

~22% chance

Pressure

pressure

1013.5 hPa

Medium volatility

Banff Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

82%Highly Predictable

Based on 10 years of data

Temperature
±4.2°CVariable
Precipitation
11-40%Moderate

🎯 This date historically delivers consistent weather 82% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

2.5Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 32 min to burn

Type III-IV

🟡 48 min to burn

Type V-VI

🟢 80 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

73Good
TemperatureCool
HumidityMuggy
WindLight Breeze

Dew Point

9.7°C

Dry air

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

89/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~261

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Banff

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

06:25

☀️ Noon

12:37

🌇 Sunset

18:49

⏱️ Daylight

12h 24m

Golden Hour
Morning06:25 - 07:08
18:06 - 18:49Evening

Wind Speed

wind

9.7 km/h

Light breeze

Sunshine

clear-day

9.4 hrs

Direct Sun (Cloud-free)

Humidity

humidity

73%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Banff

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

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Travel Health & Safety in Banff

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

82/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1013.5 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
35AQI
Good
PM2.5 Concentration5.2 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):1
In Sep (30y):0
💡 Very rare tremors. Standard travel precautions apply.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Banff on September 19 averages 14.5°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 86/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Banff Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2025
21.8°C
Coldest
2017
-1.8°C
Rainiest
2022
10.6mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

Compare Other Cities

Same date (September 19) in other destinations

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📍 Is Banff Worth Visiting on September 19?

Planning a trip to Banff on September 19? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 14.5°C with a 22% historical precipitation risk.

✈️ Travel Logistics: Approximately 261 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 19 recorded in the last 30 years saw temperatures hit 21.8°C in 2025, while the coldest dropped to -1.8°C in 2017.

Banff Weather FAQ