In March, Reykjavik typically sees daytime highs of 3.1°C and overnight lows around -2.5°C. Compared to the annual average high of 6.9°C, March runs -3.7°C.
March in Reykjavik averages a daytime high of 3.1°C and an overnight low of -2.5°C.
March runs -3.7°C compared to Reykjavik's annual average high of 6.9°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 3.1°C and cooler evenings around -2.5°C.