Calgary in May
6.8out of 10
Possible, with caveats
Mild: highs around 17°C. Frequent rain: about 11 rainy days.
17°CAvg high
3°CAvg low
11Rainy days (72 mm)
15:19 hDaylight
05:53Sunrise · 21:12 Sunset
Why this score
- Mild: highs around 17°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±3.7 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -2°C | -12°C | 12 mm | 4 | – | – | 4.6 |
| February | 0°C | -10°C | 12 mm | 4 | – | – | 4.6 |
| March | 5°C | -7°C | 21 mm | 6 | – | – | 5.0 |
| April | 12°C | -2°C | 37 mm | 8 | – | – | 6.1 |
| May | 17°C | 3°C | 72 mm | 11 | – | – | 6.8 |
| June | 20°C | 8°C | 104 mm | 14 | – | – | 6.8 |
| July | 24°C | 10°C | 61 mm | 11 | – | – | 7.6 |
| August | 24°C | 9°C | 64 mm | 10 | – | – | 7.8 |
| September | 19°C | 5°C | 43 mm | 8 | – | – | 7.6 |
| October | 12°C | -1°C | 25 mm | 6 | – | – | 6.4 |
| November | 3°C | -6°C | 19 mm | 5 | – | – | 4.8 |
| December | -2°C | -11°C | 13 mm | 4 | – | – | 4.6 |
Frequently asked questions
How hot is Calgary in May?
Daytime highs average 17°C and nights about 3°C.
When is the best time to visit Calgary?
The best months are August, July, September.