SeasonMapCharleston vs San Francisco in December
Charleston is the better pick in December — 72 vs 67 on SeasonMap's comfort score. Charleston is cool, rainy, clean air, while San Francisco is cool, rainy, clean air.
Charleston vs San Francisco — December climate, side by side
| Charleston | San Francisco | |
|---|---|---|
| Comfort score | 72/100 (B) | 67/100 (C) |
| Feels-like high | 14°C | 13°C |
| Avg high / low | 16° / 9° | 15° / 9° |
| Rainfall | 104 mm | 121 mm |
| Rainy days | 7 | 9 |
| Humidity | 77% | 82% |
| Air quality (AQI) | 36 | 50 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Charleston vs San Francisco in December — FAQ
- Is December better in Charleston or San Francisco?
- Charleston is the better pick in December — 72 vs 67 on SeasonMap's comfort score. Charleston is cool, rainy, clean air, while San Francisco is cool, rainy, clean air.
- What is the weather like in Charleston vs San Francisco in December?
- In December, Charleston averages 16°C high / 9°C low with about 104 mm of rain; San Francisco averages 15°C high / 9°C low with about 121 mm.