Calgary weather
Our guide to the weather in Calgary during May
We've looked at the most up-to-date weather data for Calgary, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Calgary weather in May.
What's the temperature like in Calgary during May?
The temperature reaches around 15℃ during the daytime in May, falling away to 5℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it snow in Calgary during May?
Possibly. There's a chance of snow during May but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in Calgary during May?
On average, there will be 7 rainy days during the month, amounting to 79.6mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a good chance that you'll catch a thunderstorm during your trip.
Is it windy in Calgary during May?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in May. With moderate humidity, the wind will feel chilly, so you'll want to wear layers.
Is it too cold to swim in the sea in Calgary during May?
The water around Calgary is a bracing 9℃ during May and is too cold for for swimming. Those who frequently swim in cold open water might want to take a very quick dip, but prolonged exposure could cause hypothermia. A winter wetsuit will allow longer exposure to the water.
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