Weather in Montreal in May
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for May in Montreal.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youMontreal in May is pleasantly mild — daytime temperatures average 18.3°C, dropping to 6.9°C at night. The month is moderately rainy (8 rainy days), with roughly 10.8 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal. For the complete picture, see the best time to visit Montreal — every month compared. Once you know when to go, find your Montreal packing list at 247PackingList.
Get ready for Montreal in May
Search flights to Montreal
Compare 100+ airlines for May — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Montreal in May
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Light waterproof layer
Compare all months in Montreal
| Month | High | Rain | Rating |
|---|---|---|---|
| January | -5.7°C | 79.3mm | 6/10 |
| February | -4.2°C | 80.7mm | 6/10 |
| March | 2.7°C | 88.3mm | 8/10 |
| April | 10.4°C | 110.3mm | 9/10 |
| May | 18.3°C | 56.6mm | 10/10 |
| June | 23.3°C | 110.5mm | 9/10 |
| July | 25.2°C | 115.8mm | 9/10 |
| August | 24.1°C | 137.4mm | 9/10 |
| September | 19.7°C | 85.9mm | 10/10 |
| October | 13.6°C | 117.9mm | 9/10 |
| November | 5.6°C | 73.0mm | 10/10 |
| December | -0.1°C | 95.9mm | 6/10 |
Full month-by-month guide: best time to visit Montreal →
For facts about Canada — currency, language and dialling code — see our Canada country guide at 247CountryInfo. Travellers also find it useful to keep a Montreal travel guide to hand. Check clothing sizes in Canada before you shop.
Frequently Asked Questions
Is May a good time to visit Montreal?
May rates 10/10 for visiting Montreal — excellent time to visit. Expect average highs of 18.3°C, 56.6mm of rain across the month and about 10.8 hours of daily sunshine.
What is the temperature in Montreal in May?
In May, Montreal has average highs of 18.3°C (64.9°F) and average lows of 6.9°C (44.4°F).
Does it rain in Montreal in May?
Not much. May averages just 56.6mm of rain in Montreal — the odd shower is possible but most days stay dry.
What should I wear in Montreal in May?
For Montreal in May (18.3°C highs / 6.9°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes, light waterproof layer.
More essentials for Montreal in May
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.