What is the weather like in Charlottetown vs Ottawa in September?

In September, Charlottetown averages 21°C high / 11°C low with about 94 mm of rain; Ottawa averages 22°C high / 11°C low with about 66 mm.

Charlottetown vs Ottawa in September

Ottawa is the better pick in September — 89 vs 82 on SeasonMap's comfort score. Ottawa is nice, a little rain, clean air, while Charlottetown is nice, rainy, clean air.

Charlottetown vs Ottawa — September climate, side by side

	🇨🇦 Charlottetown	🇨🇦 Ottawa
Comfort score	82/100 (A)	89/100 (A)
Feels-like high	20°C	22°C
Avg high / low	21° / 11°	22° / 11°
Rainfall	94 mm	66 mm
Rainy days	9	7
Humidity	77%	75%
Air quality (AQI)	37	39

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

Month by month

Charlottetown vs Ottawa in September — FAQ

Is September better in Charlottetown or Ottawa?: Ottawa is the better pick in September — 89 vs 82 on SeasonMap's comfort score. Ottawa is nice, a little rain, clean air, while Charlottetown is nice, rainy, clean air.
What is the weather like in Charlottetown vs Ottawa in September?: In September, Charlottetown averages 21°C high / 11°C low with about 94 mm of rain; Ottawa averages 22°C high / 11°C low with about 66 mm.