30YearWeather
Toronto in May
Toronto weather in May - Canada
🌤️Mild & Comfortable

Toronto Weather in May

Plan your May trip to Toronto, Canada. Based on 30 years of NASA data, expect temperatures of 17°C (high) to 9°C (low), with 24% rain probability and 8 hours of daily sunshine. Great conditions with only 10 rainy days expected.

Avg High
17°C

Hottest around day 30

Avg Low
9°C

Coolest around day 1

Rainy Days
10days

24% avg rain chance

Sunshine
8hrs/day

Spring season

Toronto May Weather Calendar

Click any day to see detailed weather information

Currency

CAD

$ Canadian dollar

Language

English

+1 more

Driving

Right side

Connect

Calling...

Safety

Very High Safety

GPI: 1.389

Travel Intelligence

Exclusive flight analytics & health data for Toronto

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub
100/ 100
Traffic Index

Extremely busy airport

Peak Daily Arrivals

0

slots per day

Peak

Sep

Low

Jan

Monthly Traffic Distribution

485
Jan
503
Feb
525
Mar
545
Apr
650
May
1370
Jun
1411
Jul
1470
Aug
1494
Sep
1317
Oct
1163
Nov
893
Dec
Traffic Level
Low Season

Key Connections

Montreal Trudeau (YUL)
Vancouver (YVR)
New York La Guardia (LGA)
Calgary (YYC)
Chicago O'Hare (ORD)

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 Toronto?

👍Great time to visit - recommended
Short Answer

May delivers Toronto's best weather - 17°C days, rare rain (24%), and comfortable 71% humidity. Book accommodation early as this is well-known as an excellent period.

Decision Factors

Vaccinations required

Yellow Fever

Plenty of sunshine

10.6h of sunshine daily

Shoulder season - balanced conditions

44% of peak - good value with moderate crowds

Exceptional dining scene

92 Michelin-listed restaurants

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 17.2°C temperatures and low 24% rain risk

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 17.2°C, 24% rain chance

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 89/100 with romantic weather conditions

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only undefined°C - too cold for comfortable swimming

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Toronto in May averages 17°C with 24% precipitation probability."

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

Frequently Asked Questions: Toronto in May

What are the temperatures in Toronto in May?

Daytime highs average 17°C, nights drop to 9°C. Temperatures remain fairly consistent.

How many rainy days in Toronto in May?

Expect around 10 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Toronto in May?

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

Is May peak season in Toronto?

This is shoulder season—moderate prices and manageable crowds.