June 21 is generally a great time to visit Calgary. While there is a slight chance of rain (33%), showers are usually brief. Expect comfortable 19°C weather. Calgary is seeing high visitor numbers, so iconic spots may be busier than usual. Note: June 21 is National Aboriginal Day in Calgary, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Calgary
Currency
CAD
$ Canadian dollar
Language
English
+1 more
Driving
Right side
Connect
The area codes in Calgary are403and587, ...
Safety
Very High Safety
GPI: 1.389
Calgary Weather Forecast for June 21
"Mild & Comfortable. Expect average highs of 19.1°C. 33% chance of rain."
What to Wear in Calgary in June
Based on historical data for June 21, Calgary typically experiences temperatures between 7.8°C and 19.1°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 33% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Calgary
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
19.1°C
Daytime Peak
Average Low
7.8°C
Nighttime Low
Feels Like
19.1°C
🌤️ Feels accurate
Rain Chance
33%
Avg 2.3mm if it rains
Cloud Cover
59%
Overcast
Pressure
1011.8 hPa
Medium volatility
Calgary Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Expect variable conditions. Have flexible plans and pack for multiple weather scenarios.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 20:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
12.8°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
National Aboriginal Day
Flight Traffic
Busy
78/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~232
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Calgary
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:22
☀️ Noon
12:39
🌇 Sunset
20:55
⏱️ Daylight
16h 33m
Wind Speed
14 km/h
Gentle breeze
Sunshine
12.3 hrs
Direct Sun (Cloud-free)
Humidity
67%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Calgary
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Calgary
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very 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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Calgary on June 21 averages 19.1°C with a 33% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Calgary Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
June 28
21.8°C • 26% rain
Score
96
June 24
20.6°C • 26% rain
Score
95
June 26
21.1°C • 29% rain
Score
95
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (June 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Calgary Worth Visiting on June 21?
Planning a trip to Calgary on June 21? 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 19.1°C with a 33% historical precipitation risk.
🎉 Local Event: The date coincides with National Aboriginal Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 232 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 June 21 recorded in the last 30 years saw temperatures hit 27.3°C in 2021, while the coldest dropped to 4.2°C in 2023.