In January, Tromso typically sees daytime highs of -2.1°C and overnight lows around -9.2°C. Compared to the annual average high of 5.9°C, January runs -8.1°C.
January in Tromso averages a daytime high of -2.1°C and an overnight low of -9.2°C.
January runs -8.1°C compared to Tromso's annual average high of 5.9°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near -2.1°C and cooler evenings around -9.2°C.