SeasonMapBaltimore vs Philadelphia in September
Baltimore and Philadelphia are nearly tied in September — 79 vs 81 on SeasonMap's comfort score. Baltimore is hot, rainy, clean air; Philadelphia is warm, rainy, clean air.
Baltimore vs Philadelphia — September climate, side by side
| Baltimore | Philadelphia | |
|---|---|---|
| Comfort score | 79/100 (B) | 81/100 (A) |
| Feels-like high | 29°C | 28°C |
| Avg high / low | 28° / 19° | 27° / 18° |
| Rainfall | 106 mm | 101 mm |
| Rainy days | 7 | 7 |
| Humidity | 76% | 72% |
| Air quality (AQI) | 45 | 45 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Baltimore vs Philadelphia in September — FAQ
- Is September better in Baltimore or Philadelphia?
- Baltimore and Philadelphia are nearly tied in September — 79 vs 81 on SeasonMap's comfort score. Baltimore is hot, rainy, clean air; Philadelphia is warm, rainy, clean air.
- What is the weather like in Baltimore vs Philadelphia in September?
- In September, Baltimore averages 28°C high / 19°C low with about 106 mm of rain; Philadelphia averages 27°C high / 18°C low with about 101 mm.