Cape Breton Island weather in September
Mild and comfortable, with some rainy days. Average highs of 19°C and lows of 13°C, with around 10 rainy days expected throughout the month.
While September isn't our top-rated month for Cape Breton Island, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
19°C
Average low
13°C
Rainy days
10 days
Best months to visit
Year-round
What to do in Cape Breton Island in September
Whatever the weather, Cape Breton Island rewards curious visitors. Here are some of the best ways to spend your time:
Drive the Cabot Trail for world-famous coastal vistas
Hike the Cape Breton Highlands trails
Enjoy local Celtic music in pubs and concert halls
Kayak or fish the Gulf waters
Visit the Alexander Graham Bell Museum
Tour Fortress Louisbourg's restored 18th-century fortress
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
0C
Cold, with regular rainfall.
February
-1C
Cold, with some rainy days.
March
1C
Cold, with some rainy days.
April
6C
Cold, with some rainy days.
May
12C
Cool, with some rainy days.
June
18C
Mild and comfortable, with some rainy days.
July
22C
Mild and comfortable, with some rainy days.
August
23C
Mild and comfortable, with some rainy days.
September (you are here)
19C
Mild and comfortable, with some rainy days.
October
14C
Cool, with some rainy days.
November
8C
Cold, with regular rainfall.
December
3C
Cold, with regular rainfall.
Book your September trip to Cape Breton Island
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