Cornwall Weather in August

With daytime temperatures of 24°C (75°F) and nighttime lows of 16°C (61°F), August in Cornwall brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 85 mm (3.3 in) falls on average.

Rainfall in Cornwall in August

You can expect rain on around 12 days based on historical patterns, with 85 mm (3.3 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Cornwall in August

Cornwall in August has perfect weather. Days reach 24°C (75°F) and nights cool to 16°C (61°F). During August, the summer season is in full swing. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Cornwall in August

The city usually sees around 221 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Cornwall.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Cornwall's climate page.

Cornwall Temperature in August

Min Temperature 16°C (61°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 39%  

Precipitation 85 mm (3.3 in)  

Rainy days 12 days  

Sunshine 221 hours *  

Percentage Sunshine 50% *  

* Data from: Charlottetown, Canada (6 KM, 4 Miles).

What to Wear in Cornwall in August

Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Cornwall in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Canada, check out our Cornwall's climate page.

More climate data for Cornwall

Temperature Rainfall Sunshine

See the full Cornwall climate overview or explore weather in Canada.