SeasonMapTromsø vs Trondheim: which is better, month by month
Trondheim beats Tromsø in 11 of 12 months — its lead peaks in March (56 vs 42) — and they are within 3 points in July.
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.
Tromsø vs Trondheim — all 12 months
| Month | Tromsø | Trondheim | Winner | Gap |
|---|---|---|---|---|
| January | 24Ffreezing, rainy, clean air | 33Ffreezing, rainy, clean air | Trondheim | 9 |
| February | 33Ffreezing, rainy, clean air | 44Ffreezing, a little rain, clean air | Trondheim | 11 |
| March | 42Ffreezing, rainy, clean air | 56Dcold, a little rain, clean air | Trondheim | 14 |
| April | 58Dcold, rainy, clean air | 70Bcold, a little rain, clean air | Trondheim | 12 |
| May | 74Bcold, a little rain, clean air | 80Acool, a little rain, clean air | Trondheim | 6 |
| June | 83Acool, a little rain, clean air | 88Anice, a little rain, clean air | Trondheim | 5 |
| July | 89Anice, a little rain, clean air | 92Snice, a little rain, clean air | Tie | 3 |
| August | 80Acool, rainy, clean air | 84Anice, rainy, clean air | Trondheim | 4 |
| September | 70Bcool, rainy, clean air | 75Bcool, rainy, clean air | Trondheim | 5 |
| October | 52Dcold, rainy, clean air | 60Ccold, rainy, clean air | Trondheim | 8 |
| November | 36Ffreezing, rainy, clean air | 42Fcold, a little rain, clean air | Trondheim | 6 |
| December | 28Ffreezing, rainy, clean air | 35Ffreezing, rainy, clean air | Trondheim | 7 |
A month is a tie when the two are within 3 points. The widest gap is March (42 vs 56). Tap a month for that month's temperature, rain, humidity and air quality side by side.