SeasonMapJacksonville vs San Francisco: which is better, month by month
San Francisco beats Jacksonville in 6 of 12 months — its lead peaks in July (93 vs 49) — while Jacksonville wins November to March; they are within 3 points in April.
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.
Jacksonville vs San Francisco — all 12 months
| Month | Jacksonville | San Francisco | Winner | Gap |
|---|---|---|---|---|
| January | 77Bnice, rainy, clean air | 68Ccool, rainy, clean air | Jacksonville | 9 |
| February | 87Anice, rainy, clean air | 75Bcool, rainy, muggy air | Jacksonville | 12 |
| March | 86Awarm, rainy, clean air | 76Bcool, rainy, clean air | Jacksonville | 10 |
| April | 83Ahot, rainy, clean air | 85Anice, a little rain, clean air | Tie | 2 |
| May | 70Bsweltering, rainy | 88Anice, dry, clean air | San Francisco | 18 |
| June | 56Dsweltering, soaked, muggy air | 92Snice, dry, clean air | San Francisco | 36 |
| July | 49Fsweltering, soaked, muggy air | 93Snice, dry, clean air | San Francisco | 44 |
| August | 53Dsweltering, soaked, muggy air | 95Snice, dry, clean air | San Francisco | 42 |
| September | 62Csweltering, rainy, clean air | 96Snice, dry, clean air | San Francisco | 34 |
| October | 75Bhot, rainy, clean air | 90Snice, dry, clean air | San Francisco | 15 |
| November | 90Swarm, a little rain, clean air | 80Anice, a little rain, clean air | Jacksonville | 10 |
| December | 80Anice, rainy, clean air | 67Ccool, rainy, clean air | Jacksonville | 13 |
A month is a tie when the two are within 3 points. The widest gap is July (49 vs 93). Tap a month for that month's temperature, rain, humidity and air quality side by side.