SeasonMapOslo vs Trondheim: which is better, month by month
Oslo beats Trondheim in 3 of 12 months — its lead peaks in April (76 vs 70) — and they are within 3 points in the other 9 months.
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 Trondheim — all 12 months
| Month | Oslo | Trondheim | Winner | Gap |
|---|---|---|---|---|
| January | 33Ffreezing, a little rain, clean air | 33Ffreezing, rainy, clean air | Tie | 0 |
| February | 43Ffreezing, a little rain, clean air | 44Ffreezing, a little rain, clean air | Tie | 1 |
| March | 61Ccold, a little rain, clean air | 56Dcold, a little rain, clean air | Oslo | 5 |
| April | 76Bcold, a little rain, clean air | 70Bcold, a little rain, clean air | Oslo | 6 |
| May | 83Anice, a little rain, clean air | 80Acool, a little rain, clean air | Tie | 3 |
| June | 90Snice, rainy, clean air | 88Anice, a little rain, clean air | Tie | 2 |
| July | 94Swarm, rainy, clean air | 92Snice, a little rain, clean air | Tie | 2 |
| August | 86Anice, rainy, clean air | 84Anice, rainy, clean air | Tie | 2 |
| September | 74Bnice, rainy, clean air | 75Bcool, rainy, clean air | Tie | 1 |
| October | 59Dcold, rainy, clean air | 60Ccold, rainy, clean air | Tie | 1 |
| November | 47Fcold, a little rain, clean air | 42Fcold, a little rain, clean air | Oslo | 5 |
| December | 36Ffreezing, a little rain, clean air | 35Ffreezing, rainy, clean air | Tie | 1 |
A month is a tie when the two are within 3 points. The widest gap is April (76 vs 70). Tap a month for that month's temperature, rain, humidity and air quality side by side.