Cornwall in August
The weather in August
In August, Cornwall averages daytime highs of 23° and night-time lows of 16° — mild weather by day. Expect around 98 mm of precipitation spread over about 12 wet days, with average cloud cover near 36%.
Temperatures are much the same as in July, and September is cooler again by about 3.9°. The sea averages 19°, bracing but swimmable.
August scores 70/100 — good conditions for sightseeing — and ranks 2nd of the twelve months for Cornwall.
Around the middle of the month the sun rises at 06:12 and sets at 20:24 local time, giving 14 h 11 min of daylight. Days shorten by 87 minutes over the month.
Why 70/100?
How the score for August is builtBeach score this month: 46/100 (adds sea temperature and heat).
Comfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Cornwall this month
Charlottetown
Summerside
Canada's best in August
%2002.jpg){kind=link}
Swift Current
Cornwall in August: quick answers
Is August a good time to visit Cornwall?
August scores 70/100 for Cornwall, which we rate as good. Average highs are 23°C with 12 wet days.
How warm is Cornwall in August?
Daytime highs average 23°C and night-time lows 16°C in August.
Does it rain a lot in Cornwall in August?
Cornwall receives about 98 mm of precipitation in August, falling on around 12 days.
Can you swim in Cornwall in August?
The sea averages 19°C in August, refreshing but swimmable.