What is the weather like in Philadelphia vs Saint-Pierre in September?

In September, Philadelphia averages 27°C high / 18°C low with about 101 mm of rain; Saint-Pierre averages 18°C high / 12°C low with about 100 mm.

Philadelphia vs Saint-Pierre in September

Philadelphia is the better pick in September — 81 vs 72 on SeasonMap's comfort score. Philadelphia is warm, rainy, clean air, while Saint-Pierre is cool, rainy, clean air.

Philadelphia vs Saint-Pierre — September climate, side by side

	🇺🇸 Philadelphia	Saint-Pierre
Comfort score	81/100 (A)	72/100 (B)
Feels-like high	28°C	15°C
Avg high / low	27° / 18°	18° / 12°
Rainfall	101 mm	100 mm
Rainy days	7	11
Humidity	72%	83%
Air quality (AQI)	45	44

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

Month by month

Philadelphia vs Saint-Pierre in September — FAQ

Is September better in Philadelphia or Saint-Pierre?: Philadelphia is the better pick in September — 81 vs 72 on SeasonMap's comfort score. Philadelphia is warm, rainy, clean air, while Saint-Pierre is cool, rainy, clean air.
What is the weather like in Philadelphia vs Saint-Pierre in September?: In September, Philadelphia averages 27°C high / 18°C low with about 101 mm of rain; Saint-Pierre averages 18°C high / 12°C low with about 100 mm.