SeasonMapHong Kong vs San Francisco: which is better, month by month
San Francisco beats Hong Kong in 7 of 12 months — its lead peaks in August (95 vs 38) — while Hong Kong wins December to March; they are within 3 points in November.
Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Hong Kong vs San Francisco — all 12 months
| Month | Hong Kong | San Francisco | Winner | Gap |
|---|---|---|---|---|
| January | 84Anice, a little rain, poor air quality | 68Ccool, rainy, clean air | Hong Kong | 16 |
| February | 86Anice, a little rain, muggy air | 75Bcool, rainy, muggy air | Hong Kong | 11 |
| March | 80Awarm, a little rain, muggy air | 76Bcool, rainy, clean air | Hong Kong | 4 |
| April | 71Bhot, rainy, muggy air | 85Anice, a little rain, clean air | San Francisco | 14 |
| May | 55Dhot, soaked, muggy air | 88Anice, dry, clean air | San Francisco | 33 |
| June | 40Fsweltering, soaked, muggy air | 92Snice, dry, clean air | San Francisco | 52 |
| July | 50Dsweltering, soaked, muggy air | 93Snice, dry, clean air | San Francisco | 43 |
| August | 38Fsweltering, soaked, muggy air | 95Snice, dry, clean air | San Francisco | 57 |
| September | 47Fsweltering, soaked, muggy air | 96Snice, dry, clean air | San Francisco | 49 |
| October | 65Chot, soaked, muggy air | 90Snice, dry, clean air | San Francisco | 25 |
| November | 78Bwarm, a little rain | 80Anice, a little rain, clean air | Tie | 2 |
| December | 89Anice, dry, poor air quality | 67Ccool, rainy, clean air | Hong Kong | 22 |
A month is a tie when the two are within 3 points. The widest gap is August (38 vs 95). Tap a month for that month's temperature, rain, humidity and air quality side by side.