Weather by Month in Toronto

Toronto experiences distinct seasons, with warm July days averaging 25°C / 77°F and cool February nights dropping to -9°C / 17°F. Rainfall averages 68 mm / 2.7 inches per month, with June typically the wettest. June offers the longest days with around 15 hours of daylight.

Monthly Climate Comparison

The biggest temperature swing occurs between September and October, as typical highs shift from 21.1°C / 70°F to 14.2°C / 57.6°F (about 6.9°C / 12.4°F).

Month Low Temperature High Temperature Category
January -8°C -1.2°C COLD
February -8.6°C -0.6°C COLD
March -4.2°C 3.7°C COLD
April 1.7°C 9.7°C COOL
May 7.9°C 16.1°C MILD
June 14.2°C 21.9°C MILD
July 17.6°C 25.2°C WARM
August 17.5°C 24.7°C WARM
September 14.1°C 21.1°C MILD
October 8°C 14.2°C COOL
November 1.7°C 7.4°C COLD
December -3.4°C 2.1°C COLD

Rain & Sunshine Patterns

Driest Months

#1 February
Best for: outdoor activities & sightseeing
#2 March
Best for: outdoor activities & sightseeing
#3 January
Best for: outdoor activities & sightseeing

Wettest Months

#1 June
Expect: possible showers, pack waterproofs
#2 April
Expect: possible showers, pack waterproofs
#3 October
Expect: possible showers, pack waterproofs

UV & Sun Protection Calendar

High UV Alert:
April, May, June, July, August, September require serious sun protection.
Jan
3
LOW-MOD
Feb
4
MODERATE
Mar
6
MODERATE
Apr
7
HIGH
May
7
HIGH
Jun
8
HIGH
Jul
8
HIGH
Aug
7
HIGH
Sep
6
HIGH
Oct
5
MODERATE
Nov
3
MODERATE
Dec
2
LOW-MOD
Extreme (11+)
Avoid sun during midday, use SPF 50+
Very High (8-10)
Essential sun protection required
High (6-7)
Use SPF 30+, wear hat & sunglasses
Moderate (3-5)
Sun protection recommended
Low-Moderate (1-2)
Minimal protection needed
Low (0)
No protection required

Daylight Hours

Daylight varies from 9 hours in December (winter) to 15.4 hours in June (summer), which is a difference of 6.4 hours.

Shortest Days

December
9h
Average Sunrise:07:43
Average Sunset:16:42
Plan daytime activities for midday when light is best. Early sunsets mean evening plans should account for darkness.

Longest Days

June
15.4h
Average Sunrise:04:36
Average Sunset:19:59
Extended daylight perfect for evening activities and late dining. You can fit more sightseeing into each day.

Wind & Humidity Overview

Wind Conditions

Average wind speed
Windiest months:
January ( 16 km/h) December ( 15 km/h) February ( 15 km/h)
Packing tip: Conditions are generally calm, but a light layer is always handy.

Humidity Levels

Average humidity
72%
Most humid:
December ( 75%)
Least humid:
April ( 69%)
Packing tip: Choose breathable, natural fabrics like cotton or linen for comfort in humid conditions.

Seasonal Overview

Northern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:

Winter

January, February, December
Avg High
Avg Low
Avg Rain
Cold conditions; pack warm layers and waterproofs

Spring

March, April, May
Avg High
Avg Low
Avg Rain
Variable conditions; layer your clothing

Summer

June, July, August
Avg High
Avg Low
Avg Rain
Comfortable temperatures; enjoy outdoor activities

Autumn

September, October, November
Avg High
Avg Low
Avg Rain
Cooling down; pack warmer clothes

Risk Ranking Table

Ranking Goal #1#2#3#4
Lowest rain risk
Jan 4 risk days
Feb 4 risk days
Mar 4 risk days
Aug 4 risk days
Lowest heatwave risk
Jan 0 risk days
Feb 0 risk days
Mar 0 risk days
Apr 0 risk days
Lowest cold risk
Jul 0 risk days
Aug 0 risk days
Jun 3 risk days
Sep 4 risk days
Lowest wind disruption risk
Aug 49 km/h
Jul 49 km/h
Jun 53 km/h
Sep 54 km/h
Most comfortable evenings
Aug 86 / 100
Jul 85 / 100
Sep 69 / 100
Jun 67 / 100
Best outdoor reliability
Aug 100 / 100
Sep 93 / 100
Jan 83 / 100
Nov 82 / 100

Monthly Details

Click any month for detailed weather information and packing advice.

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Frequently Asked Questions

What is the best month to visit Toronto?

The best months to visit Toronto depend on your preferences. For warm weather, July is typically the warmest month. For dry conditions, February, March, January tend to have the least rainfall. Consider your priorities, and whether you prefer warmer temperatures, drier weather, or longer daylight hours.

When is Toronto warmest?

July is typically the warmest month in Toronto, with average high temperatures reaching around 25°C (77°F). This is peak summer weather, ideal for outdoor activities and sightseeing.

When is Toronto coldest?

February is usually the coldest month, with average low temperatures dropping to around -9°C (16°F). Pack warm layers if visiting during this time, especially for evening activities.

When does Toronto get the most rain?

June typically sees the most rainfall in Toronto, averaging around 84mm (3.3 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.

What is the driest month in Toronto?

February is typically the driest month, with average rainfall of just 53mm (2.1 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.

How much does the temperature vary in Toronto throughout the year?

Temperatures in Toronto range from average lows of 5°C (41°F) to highs of 12°C (54°F). This variation means you'll want to pack differently depending on when you visit, as layers are key for adapting to the seasonal changes.

Do I need sun protection when visiting Toronto?

Yes, sun protection is important in Toronto. UV levels can reach 8 during peak months, which is considered high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.

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