Montréal
May
Weather in Montréal for May 2026
Your guide to Montréal weather in May - trends and predictions
Until now, May 2026 in Montréal is cooler than usual, with temperatures averaging 12.3 °C, this is -2.2 °C below the typical seasonal average.
The forecast for the next days in Montréal predicts temperatures to be around 15 °C, close to the historical average.
In general, the average temperature in Montréal at the beginning of May is 14.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.3 °C by the end of May.
Montréal in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 87.1 mm.
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Temperatures
Rain 🌧️
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11
Dry days
20
Rainy days
0
Snow days
18°/9°
Temperatures
17 km/h
Avg max wind
70 %
Avg humidity
Montréal Weather May
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Temperatures trend during May in Montréal
See the weather trend as well as the moving average line
May weather in Montréal day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Cloudy | 14° /3° | 7.7 mm | 4 | |
| 2 May |  Patchy rain possible | 13° /5° | 4.3 mm | 3 | |
| 3 May | Patchy rain possible | 13° /5° | 2.1 mm | 4 | |
| 4 May |  Heavy rain at times | 14° /6° | 3.7 mm | 3 | |
| 5 May | Patchy rain possible | 16° /7° | 2.8 mm | 4 | |
| 6 May |  Partly cloudy | 16° /6° | 4.7 mm | 4 | |
| 7 May |  Overcast | 17° /6° | 0 mm | 5 | |
| 8 May | Overcast | 14° /6° | 0.8 mm | 4 | |
| 9 May | Overcast | 14° /5° | 0 mm | 4 | |
| 10 May | Patchy rain possible | 17° /6° | 0.5 mm | 5 | |
| 11 May | Patchy rain possible | 13° /5° | 1 mm | 5.5 | |
| 12 May |  Sunny | 13° /4° | 0 mm | 6.1 | |
| 13 May |  Moderate rain | 10° /7° | 8.2 mm | 3.1 | |
| 14 May | Patchy rain possible | 13° /7° | 0.8 mm | 1.5 | |
| 15 May | Patchy rain possible | 17° /6° | 2.5 mm | 0.4 | |
| 16 May | Sunny | 16° /3° | 0 mm | 3 | |
| 17 May | Patchy rain possible | 16° /6° | 2.4 mm | 3 | |
| 18 May | Patchy rain possible | 14° /10° | 1.2 mm | 3 | |
| 19 May | Cloudy | 14° /6° | 0 mm | 3 | |
| 20 May | Moderate rain | 19° /12° | 11.2 mm | 3 | |
| 21 May | Sunny | 18° /7° | 0 mm | 4 | |
| 22 May | Patchy rain possible | 17° /12° | 1.2 mm | 3 | |
| 23 May | Sunny | 16° /8° | 0 mm | 4 | |
| 24 May | Patchy rain possible | 15° /9° | 1.1 mm | 3 | |
| 25 May | Overcast | 20° /8° | 0 mm | 5 | |
| 26 May |  Moderate rain at times | 22° /11° | 0.8 mm | 5 | |
| 27 May | Partly cloudy | 22° /11° | 9.8 mm | 6 | |
| 28 May | Sunny | 22° /11° | 2.3 mm | 6 | |
| 29 May | Sunny | 20° /10° | 0 mm | 5 | |
| 30 May | Overcast | 22° /10° | 0.6 mm | 5 | |
| 31 May | Cloudy | 21° /10° | 0.1 mm | 5 | |
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Important Notice
Our weather forecast for Montréal 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 Montréal forecast closer to your planned date for the most up-to-date weather information.
Change Month
Montréal in May - FAQ
What are the expected maximum and minimum temperatures in Montréal during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Montréal during May?
Moderate rainfall is anticipated in Montréal during May, with a total of 87.1 mm spread over approximately 20 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Montréal during May?
The average wind speed in Montréal during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Montréal
Explore the daily rainfall trends and prepare for Montréals May weather 💧
Typically, Montréal has 20 rainy days in May with a total of 87.1 mm of rainfall.
UV exposure in Montréal during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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