Calgary
May
Weather in Calgary for May 2025
Your guide to Calgary weather in May - trends and predictions
In general, the average temperature in Calgary at the beginning of May is 13 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.6 °C by the end of May.
Calgary sees moderate rainfall in May, averaging 10 rainy days.
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21
Dry days
10
Rainy days
0
Snow days
21°/5°
Temperatures
21 km/h
Avg max wind
66 %
Avg humidity
Calgary in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  11° | 2  10° | 3  17° | 4  19° | |||
| 5 15° | 6  11° | 7 8° | 8  12° | 9 16° | 10 20° | 11 20° |
| 12 20° | 13 17° | 14 19° | 15 21° | 16 21° | 17 15° | 18 16° |
| 19 19° | 20 19° | 21 21° | 22 14° | 23 14° | 24 16° | 25 14° |
| 26 16° | 27 21° | 28 23° | 29 19° | 30 18° | 31 19° |
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Temperatures trend during May in Calgary
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 May | Sunny | 11° /2° | 9.4 mm | 0.1 cm | |
| 2 May | Overcast | 10° /3° | 4.2 mm | 3.6 cm | |
| 3 May | Partly cloudy | 17° /2° | 0 mm | 0 cm | |
| 4 May | Patchy rain possible | 19° /4° | 0.7 mm | 0 cm | |
| 5 May | Partly cloudy | 15° /6° | 1.3 mm | 0 cm | |
| 6 May | Moderate rain at times | 11° /4° | 8.7 mm | 0 cm | |
| 7 May | Patchy rain possible | 8° /3° | 26.9 mm | 7.8 cm | |
| 8 May | Heavy rain at times | 12° /4° | 2.5 mm | 0 cm | |
| 9 May | Moderate or heavy rain shower | 16° /5° | 4.7 mm | 0 cm | |
| 10 May | Moderate rain at times | 20° /6° | 0.6 mm | 0 cm | |
| 11 May | Moderate rain at times | 20° /6° | 7.3 mm | 0 cm | |
| 12 May | Patchy rain possible | 20° /6° | 4.8 mm | 0 cm | |
| 13 May | Sunny | 17° /6° | 1.2 mm | 0 cm | |
| 14 May | Sunny | 19° /8° | 0.3 mm | 0 cm | |
| 15 May | Sunny | 21° /7° | 0.6 mm | 0 cm | |
| 16 May | Sunny | 21° /9° | 0.7 mm | 0 cm | |
| 17 May | Patchy rain possible | 15° /6° | 0.4 mm | 0 cm | |
| 18 May | Sunny | 16° /4° | 0.9 mm | 0 cm | |
| 19 May | Patchy rain possible | 19° /5° | 0.8 mm | 0 cm | |
| 20 May | Sunny | 19° /7° | 1.3 mm | 0 cm | |
| 21 May | Sunny | 21° /6° | 1.8 mm | 0 cm | |
| 22 May | Moderate or heavy rain shower | 14° /6° | 21.8 mm | 0 cm | |
| 23 May | Moderate or heavy rain shower | 14° /4° | 12.6 mm | 1.6 cm | |
| 24 May | Partly cloudy | 16° /5° | 2.3 mm | 0 cm | |
| 25 May | Patchy rain possible | 14° /6° | 1.4 mm | 0 cm | |
| 26 May | Partly cloudy | 16° /5° | 9.4 mm | 0 cm | |
| 27 May | Patchy rain possible | 21° /6° | 0.2 mm | 0 cm | |
| 28 May | Sunny | 23° /9° | 0.2 mm | 0 cm | |
| 29 May | Overcast | 19° /8° | 12.8 mm | 0 cm | |
| 30 May | Overcast | 18° /7° | 2.3 mm | 0 cm | |
| 31 May | Partly cloudy | 19° /7° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Calgary in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Calgary forecast closer to your planned date for the most up-to-date weather information.
Calgary in May - FAQ
What are the expected maximum and minimum temperatures in Calgary during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Calgary during May?
Significant rainfall exceeding 234.4 mm is expected in Calgary during May, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Calgary during May?
Calgary experiences an average snowfall of 26.2 cm during May, occurring over 0 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Calgary during May?
The average wind speed in Calgary during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
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