Canada in August has warm conditions, with highs averaging 25.3°C (78°F). Rain falls on about 12 days this month. Temperatures drop noticeably between day and night.
This month falls at the end of Summer.
Temperature
25°C / 15°C
Canada Weather in August 2026
Monthly climate averages for Ottawa. Based on 10-year ERA5 reanalysis data.
Dfb Warm-Summer Continental
Climate Overview
Temperatures begin dropping heading into September.
Monthly August Averages
Feels Like
27°C / 15°C
Rain
12 days · 109 mm
Sunshine
10.8h / day
Humidity
78% — Humid
Wind
13 km/h
Wind Direction
W (274°)
Gusts
32 km/h
Daylight
14 h
Cloud Cover
58%
Clear Sky Days
2.7
Dew Point
16°C — Humid
Moon Phase
Waxing Crescent · 3%
Seasonal Demand
Moderate (3/5)
Sun Position
Sunrise 06:05
Daylight 14.1h
Sunset 20:13
What to Expect
Daytime temperatures around 25°C (78°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.
Rain usually comes in shorter passing showers rather than all-day rain.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Pros
- Comfortable temperatures for sightseeing
- Abundant sunshine for exploring and outdoor fun
- One of the best months to visit
Cons
- Popular month due to favourable weather conditions
What to Wear
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. A waterproof jacket and shoes are non-negotiable — showers are frequent.
Packing List
UmbrellaWaterproof jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes
Compare Months
January
Poor 
February
Poor March
Poor April
Poor May best
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | Status | Details |
|---|---|---|---|---|---|---|---|
| January | -4°C / -12°C | -8°C / -17°C | 10days (72 mm) Wet | 5.2h Fair | 78% Humid | Poor | View Details |
| February | -2°C / -12°C | -7°C / -18°C | 11days (67 mm) Wet | 6.6h Fair | 73% Muggy | Poor | View Details |
| March | 5°C / -5°C | 1°C / -10°C | 13days (86 mm) Wet | 7.9h Good | 68% Muggy | Poor | View Details |
| April | 12°C / 2°C | 9°C / -2°C | 12days (108 mm) Wet | 9h Good | 63% Muggy | Poor | View Details |
| May best | 20°C / 8°C | 19°C / 5°C | 11days (82 mm) Wet | 10.8h Excellent | 63% Muggy | Good | View Details |
| June best | 24°C / 14°C | 25°C / 13°C | 13days (103 mm) Wet | 11.5h Excellent | 71% Muggy | Excellent | View Details |
| July best | 27°C / 16°C | 29°C / 17°C | 12days (110 mm) Wet | 12.2h Excellent | 75% Muggy | Excellent | View Details |
| August best | 25°C / 15°C | 27°C / 15°C | 12days (109 mm) Wet | 10.8h Excellent | 78% Humid | Excellent | View Details |
| September best | 22°C / 10°C | 21°C / 9°C | 8days (69 mm) Wet | 9.6h Good | 78% Humid | Excellent | View Details |
| October | 15°C / 5°C | 13°C / 2°C | 11days (89 mm) Wet | 7.1h Good | 78% Humid | Fair | View Details |
| November | 6°C / -1°C | 2°C / -5°C | 12days (72 mm) Wet | 5.3h Fair | 77% Humid | Poor | View Details |
| December | 0°C / -7°C | -5°C / -12°C | 14days (95 mm) Wet | 3.7h Poor | 80% Humid | Poor | View Details |
Frequently Asked Questions
August is typically excellent for visiting Canada, with average highs of 25°C (78°F) and around 12 rainy days. Canada in August has warm conditions, with highs averaging 25.3°C (78°F). Rain falls on about 12 days this month. Temper
Canada typically sees around 12 rainy days in August with 109 mm (4.3 in) of total rainfall. Pack a waterproof jacket.
With highs of 25°C (78°F) and lows of 15°C (59°F) in August, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.
Yes, August offers some of the best weather conditions in Canada with comfortable temperatures and lower chances of rain.
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