In March, Rennes typically sees daytime highs of 11.8°C and overnight lows around 2.9°C. Compared to the annual average high of 15.3°C, March runs -3.6°C.
March in Rennes averages a daytime high of 11.8°C and an overnight low of 2.9°C.
March runs -3.6°C compared to Rennes's annual average high of 15.3°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 11.8°C and cooler evenings around 2.9°C.