SeasonMapOslo vs San Juan: which is better, month by month
Oslo and San Juan split the year 6–6 — Oslo wins April to September, San Juan wins October to March.
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.
Oslo vs San Juan — all 12 months
| Month | Oslo | San Juan | Winner | Gap |
|---|---|---|---|---|
| January | 33Ffreezing, a little rain, clean air | 77Bhot, a little rain, clean air | San Juan | 44 |
| February | 43Ffreezing, a little rain, clean air | 75Bhot, a little rain, clean air | San Juan | 32 |
| March | 61Ccold, a little rain, clean air | 77Bhot, a little rain, clean air | San Juan | 16 |
| April | 76Bcold, a little rain, clean air | 72Bhot, rainy, clean air | Oslo | 4 |
| May | 83Anice, a little rain, clean air | 70Bsweltering, rainy, clean air | Oslo | 13 |
| June | 90Snice, rainy, clean air | 70Bsweltering, a little rain, clean air | Oslo | 20 |
| July | 94Swarm, rainy, clean air | 66Csweltering, rainy, clean air | Oslo | 28 |
| August | 86Anice, rainy, clean air | 64Csweltering, rainy, clean air | Oslo | 22 |
| September | 74Bnice, rainy, clean air | 61Csweltering, rainy, clean air | Oslo | 13 |
| October | 59Dcold, rainy, clean air | 63Csweltering, rainy, clean air | San Juan | 4 |
| November | 47Fcold, a little rain, clean air | 64Csweltering, soaked, clean air | San Juan | 17 |
| December | 36Ffreezing, a little rain, clean air | 73Bhot, a little rain, clean air | San Juan | 37 |
A month is a tie when the two are within 3 points. The widest gap is January (33 vs 77). Tap a month for that month's temperature, rain, humidity and air quality side by side.