St. John's weather in September
Cool, with some rainy days. Average highs of 17°C and lows of 11°C, with around 11 rainy days expected throughout the month.
While September isn't our top-rated month for St. John's, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
17°C
Average low
11°C
Rainy days
11 days
Best months to visit
Year-round
What to do in St. John's in September
Whatever the weather, St. John's rewards curious visitors. Here are some of the best ways to spend your time:
Explore downtown's colorful row houses and cobblestone streets
Visit Cape Spear for dramatic Atlantic cliffs and lighthouse
Whale watch for humpbacks and icebergs (April-June)
Experience the city's Irish pub culture and live music
Hike the East Coast Trail with ocean vistas
Tour the Signal Hill historic site overlooking the harbor
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
1C
Cold, with regular rainfall.
February
0C
Cold, with some rainy days.
March
1C
Cold, with some rainy days.
April
5C
Cold, with some rainy days.
May
9C
Cold, with some rainy days.
June
14C
Cool, with some rainy days.
July
19C
Mild and comfortable, with some rainy days.
August
20C
Mild and comfortable, with some rainy days.
September (you are here)
17C
Cool, with some rainy days.
October
12C
Cool, with some rainy days.
November
7C
Cold, with some rainy days.
December
3C
Cold, with some rainy days.
Book your September trip to St. John's
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