Best Time to Visit Calgary
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Calgary is:
July → August → June
July scores 57/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 19 | 0 | 63 | 0 | |
| February | 7 | 0 | 24 | 0 | |
| March | 7 | 0 | 24 | 0 | |
| April | 3 | 0 | 8 | 0 | |
| May | 18 | 35 | 0 | 0 | |
| June | 29 | 58 | 0 | 0 | |
| July | 38 | 76 | 0 | 0 | |
| August | 36 | 71 | 0 | 0 | |
| September | 30 | 52 | 13 | 0 | |
| October | 6 | 12 | 0 | 0 | |
| November | 8 | 0 | 27 | 0 | |
| December | 9 | 0 | 29 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | -7.3°C (18.9°F) | Cold (Below 0°C) |
| February | -6.6°C (20.1°F) | Cold (Below 0°C) |
| March | -3.0°C (26.6°F) | Cold (Below 0°C) |
| April | 3.1°C (37.6°F) | Cool (0-9°C) |
| May | 10.0°C (50.0°F) | Mild (10-17°C) |
| June | 14.6°C (58.3°F) | Mild (10-17°C) |
| July | 18.1°C (64.6°F) | Warm (18-24°C) |
| August | 17.2°C (63.0°F) | Mild (10-17°C) |
| September | 13.3°C (55.9°F) | Mild (10-17°C) |
| October | 5.3°C (41.5°F) | Cool (0-9°C) |
| November | -2.6°C (27.3°F) | Cold (Below 0°C) |
| December | -7.0°C (19.4°F) | Cold (Below 0°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 12.4 mm | 1.2 | Dry |
| February | 25.2 mm | 1.2 | Dry |
| March | 25.2 mm | 1.8 | Dry |
| April | 30.8 mm | 7.0 | Moderate |
| May | 65.5 mm | 15.6 | Wet |
| June | 114.8 mm | 16.8 | Very Wet |
| July | 50.4 mm | 16.8 | Moderate |
| August | 52.9 mm | 12.2 | Moderate |
| September | 29.0 mm | 9.0 | Dry |
| October | 33.7 mm | 8.0 | Moderate |
| November | 24.2 mm | 1.8 | Dry |
| December | 23.6 mm | 2.2 | Dry |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 6.0 hrs | Good |
| February | 7.0 hrs | Good |
| March | 8.9 hrs | Excellent |
| April | 10.4 hrs | Excellent |
| May | 11.2 hrs | Excellent |
| June | 12.2 hrs | Excellent |
| July | 13.6 hrs | Excellent |
| August | 12.0 hrs | Excellent |
| September | 10.3 hrs | Excellent |
| October | 7.5 hrs | Good |
| November | 5.5 hrs | Moderate |
| December | 4.8 hrs | Moderate |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 3.4°C (38.1°F)
Rainfall: 40.5mm avg
Sunshine: 10.2 hrs/day
Humidity: 58.7%
Rainy Days: 8.1/mo
This is the cool season. Pack warm layers and plan indoor activities.
Summer (Jun-Aug)
Temperature: 16.6°C (61.9°F)
Rainfall: 72.7mm avg
Sunshine: 12.6 hrs/day
Humidity: 63.7%
Rainy Days: 15.3/mo
Mild transitional weather — comfortable for most activities.
Autumn (Sep-Nov)
Temperature: 5.3°C (41.5°F)
Rainfall: 29.0mm avg
Sunshine: 7.8 hrs/day
Humidity: 64.1%
Rainy Days: 6.3/mo
This is the cool season. Pack warm layers and plan indoor activities.
Winter (Dec-Feb)
Temperature: -7.0°C (19.4°F)
Rainfall: 20.4mm avg
Sunshine: 5.9 hrs/day
Humidity: 69.7%
Rainy Days: 1.5/mo
This is the cool season. Pack warm layers and plan indoor activities.
Frequently Asked Questions
What is the best time to visit Calgary?
Based on our data-driven analysis, the best months to visit Calgary are July, August, June, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. July scores 57/100, the highest-rated month.
What is the hottest month in Calgary?
July is the hottest month with an average temperature of 18.1°C (64.6°F).
What is the coldest month in Calgary?
January is the coldest month with an average temperature of -7.3°C (18.9°F).
When is the rainy season in Calgary?
June is the wettest month with an average of 114.8mm of precipitation. Calgary experiences about 94.0 rainy days per year. The driest month is January with 12.4mm.
What should I pack for a trip to Calgary?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (July is hottest at 18.1°C). For cooler months, bring layers and a warm jacket (January averages -7.3°C). A waterproof jacket or umbrella is recommended year-round as Calgary receives 488.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
Calgary's high altitude and continental position create a climate with wide temperature ranges. I've studied the Chinook winds that provide dramatic winter warming, sometimes raising temperatures by 20°C in hours. The best time for visiting is June to August, when the weather is warmest and the nearby Rocky Mountains are accessible for hiking.
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 51.05°, -114.07°. Timezone: America/Edmonton. Last updated: 2026-07-30.