What is the weather like in Montreal in May?

Expect temperatures between 8°C and 18°C with 27% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Montreal in May?

Montreal in May scores 64/100 based on 30 years of climate data. Worthwhile timing with some trade-offs.

Who should visit Montreal in May?

May in Montreal is ideal for: Families with children, Elderly travelers, Cultural tourists, Business travelers, Heat-sensitive visitors.

Montreal Weather in May | 30-Year Forecast

Avg High

18°C

Hottest around day 30

Avg Low

8°C

Coolest around day 1

Rainy Days

21days

27% avg rain chance

Sunshine

8hrs/day

Spring season

Essential Travel Info for Montreal

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

CAD

$ Canadian dollar

Language

English

+1 more

Driving

Right side

Connect

Montreal has four area codes: the long-s...

Safety

Very High Safety

GPI: 1.389

Travel Intelligence

Exclusive flight analytics & health data for Montreal

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected

63/ 100

Traffic Index

Popular destination

Peak Daily Arrivals

slots per day

Peak

Jul

Low

Feb

Monthly Traffic Distribution

211

Jan

211

Feb

222

Mar

238

Apr

297

May

322

Jun

342

Jul

307

Aug

301

Sep

283

Oct

252

Nov

276

Dec

Traffic Level

Low Season

Key Connections

Toronto Pearson (YYZ)

New York La Guardia (LGA)

Halifax Stanfield (YHZ)

Chicago O'Hare (ORD)

Ottawa Macdonald-Cartier (YOW)

Health & Safety Advisory

CDC travel health recommendations

6 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Canada. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Canada.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Canada.Rabies is commonly found in some terrestrial wildlife species and bats.If rabies exposures occur while in Canada, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Yellow Fever

CDC recommendations:Vaccine isnotrecommended.Country entry requirements:Vaccine isnotrequired.Updated April 23, 2025

Source: CDC Travelers' Health

View Complete Health Guide

Is May a Good Time to Visit Montreal?

👌Worthwhile timing with some trade-offs(64/100)

Short Answer

Popular May in Montreal offers 18°C and 27% rain chance - excellent conditions that attract maximum visitors. Book 3-6 months ahead for best rates.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

87% of annual peak - expect crowds and high prices

Plenty of sunshine

9.8h of sunshine daily

Exceptional dining scene

54 Michelin-listed restaurants

Good For

👨‍👩‍👧‍👦
Families with children
Comfortable 18.3°C temperatures and low 27% rain risk
👴
Elderly travelers
Comfortable 18.3°C temperature range with manageable humidity
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather
🌡️
Heat-sensitive visitors
Manageable 18.3°C without oppressive humidity

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Montreal in May averages 18°C with 27% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Montreal in May

What are the temperatures in Montreal in May?

Daytime highs average 18°C, nights drop to 8°C. Temperatures remain fairly consistent.

How many rainy days in Montreal in May?

Expect around 21 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Montreal in May?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is May peak season in Montreal?

This is shoulder season—moderate prices and manageable crowds.

Montreal Weather in May

Montreal May Weather Calendar

Essential Travel Info for Montreal

Travel Intelligence

Smart Flight Estimator

Flight Connectivity Analysis

Monthly Traffic Distribution

Key Connections

Health & Safety Advisory

COVID-19

Hepatitis A

Hepatitis B

Measles

Rabies

Yellow Fever

Is May a Good Time to Visit Montreal?

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: Montreal in May

What are the temperatures in Montreal in May?

How many rainy days in Montreal in May?

What to wear in Montreal in May?

Is May peak season in Montreal?