Stanstead, Canada — Weather in August 2026

Climate Overview

Stanstead, Canada in August has warm conditions, with highs averaging 23.3°C (74°F). Rain falls on about 14 days this month.

This month falls at the end of Summer.

Daily highs in August gradually drop from around 24°C (76°F) at the start to 22°C (71°F) by month's end.

August sees fairly even rainfall, totalling about 116 mm across the month.

Expect around 11.6h of sunshine at the start of August, decreasing to 9.7h by the end.

The warmest days tend to fall around the 4th, averaging 24.6°C (76°F).

Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

23°C / 15°C

Feels Like

24°C / 15°C

Rain

14 days · 115 mm

Sunshine

10.5h / day

Humidity

79% — Humid

Wind

13 km/h

Wind Direction

SW (226°)

Gusts

35 km/h

Daylight

14 h

Cloud Cover

60%

Clear Sky Days

1.7

UV Index

5.9 — High

Dew Point

16°C — Comfortable

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:51

Daylight 14.1h

Sunset 19:57

What to Expect

Daytime temperatures around 23°C (74°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	-4°C / -12°C	-8°C / -17°C	14days (82 mm) Wet	4.9h Fair	79% Humid	1.8 Low	Poor	View Details
February	-2°C / -11°C	-6°C / -16°C	13days (78 mm) Wet	6h Fair	75% Muggy	2.9 Moderate	Poor	View Details
March	3°C / -6°C	-1°C / -11°C	14days (90 mm) Wet	7.1h Good	72% Muggy	3.8 Moderate	Poor	View Details
April	10°C / 0°C	6°C / -4°C	15days (108 mm) Wet	7.9h Good	70% Muggy	4.9 Moderate	Poor	View Details
May best	17°C / 7°C	16°C / 5°C	13days (101 mm) Wet	9.6h Good	71% Muggy	5.4 High	Good	View Details
June best	22°C / 13°C	22°C / 12°C	15days (129 mm) Wet	10.6h Excellent	75% Muggy	6.2 High	Good	View Details
July best	25°C / 16°C	26°C / 17°C	15days (126 mm) Wet	11.4h Excellent	79% Humid	6.8 High	Excellent	View Details
August best	23°C / 15°C	24°C / 15°C	14days (115 mm) Wet	10.5h Excellent	79% Humid	5.9 High	Excellent	View Details
September best	20°C / 12°C	20°C / 11°C	9days (85 mm) Wet	8.9h Good	79% Humid	4.9 Moderate	Excellent	View Details
October	13°C / 6°C	11°C / 3°C	14days (125 mm) Wet	6.2h Fair	79% Humid	3.2 Moderate	Fair	View Details
November	5°C / -2°C	1°C / -6°C	14days (99 mm) Wet	4.9h Fair	79% Humid	1.9 Low	Poor	View Details
December	-1°C / -9°C	-5°C / -14°C	14days (95 mm) Wet	4.3h Fair	78% Humid	1.5 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesSunscreen (SPF 30+)Sunglasses

Frequently Asked Questions

Expand all

Is August a good time to visit Stanstead?

August is typically excellent for visiting Stanstead, with average highs of 23°C (74°F) and around 14 rainy days. Stanstead, Canada in August has warm conditions, with highs averaging 23.3°C (74°F). Rain falls on about 14 days this mo

Does it rain a lot in Stanstead in August?

Stanstead typically sees around 14 rainy days in August with 115 mm (4.5 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Stanstead in August?

Evenings in Stanstead during August are mild at 15°C (60°F). A light cardigan is usually enough.

What should I pack for Stanstead in August?

With highs of 23°C (74°F) and lows of 15°C (60°F) in August, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Stanstead?

Yes, August offers some of the best weather conditions in Stanstead with comfortable temperatures and lower chances of rain.

What is the UV index in Stanstead in August?

The average UV index in Stanstead during August is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Stanstead in August?

Stanstead gets approximately 14 hours of daylight per day in August, with around 11 hours of sunshine.

Does it snow in Stanstead in August?

Snow is uncommon in Stanstead during August based on 10-year climate averages.

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