What is the weather like in Montreal vs St. John's, Newfoundland in September?

In September, Montreal averages 21°C high / 13°C low with about 75 mm of rain; St. John's, Newfoundland averages 18°C high / 9°C low with about 91 mm.

Montreal vs St. John's, Newfoundland in September

Montreal is the better pick in September — 89 vs 77 on SeasonMap's comfort score. Montreal is nice, a little rain, clean air, while St. John's, Newfoundland is nice, rainy, clean air.

Montreal vs St. John's, Newfoundland — September climate, side by side

	🇨🇦 Montreal	🇨🇦 St. John's, Newfoundland
Comfort score	89/100 (A)	77/100 (B)
Feels-like high	20°C	17°C
Avg high / low	21° / 13°	18° / 9°
Rainfall	75 mm	91 mm
Rainy days	7	10
Humidity	74%	81%
Air quality (AQI)	47	36

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Montreal vs St. John's, Newfoundland in September — FAQ

Is September better in Montreal or St. John's, Newfoundland?: Montreal is the better pick in September — 89 vs 77 on SeasonMap's comfort score. Montreal is nice, a little rain, clean air, while St. John's, Newfoundland is nice, rainy, clean air.
What is the weather like in Montreal vs St. John's, Newfoundland in September?: In September, Montreal averages 21°C high / 13°C low with about 75 mm of rain; St. John's, Newfoundland averages 18°C high / 9°C low with about 91 mm.