SeasonMapIndianapolis vs San Francisco in September
San Francisco is the better pick in September — 96 vs 89 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Indianapolis is warm, a little rain, clean air.
Indianapolis vs San Francisco — September climate, side by side
| Indianapolis | San Francisco | |
|---|---|---|
| Comfort score | 89/100 (A) | 96/100 (S) |
| Feels-like high | 28°C | 21°C |
| Avg high / low | 27° / 16° | 22° / 14° |
| Rainfall | 64 mm | 3 mm |
| Rainy days | 5 | 1 |
| Humidity | 68% | 75% |
| Air quality (AQI) | 42 | 35 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Indianapolis vs San Francisco in September — FAQ
- Is September better in Indianapolis or San Francisco?
- San Francisco is the better pick in September — 96 vs 89 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while Indianapolis is warm, a little rain, clean air.
- What is the weather like in Indianapolis vs San Francisco in September?
- In September, Indianapolis averages 27°C high / 16°C low with about 64 mm of rain; San Francisco averages 22°C high / 14°C low with about 3 mm.