In December, Niort typically sees daytime highs of 8.4°C and overnight lows around 2.2°C. Compared to the annual average high of 16.4°C, December runs -8.0°C.
December in Niort averages a daytime high of 8.4°C and an overnight low of 2.2°C.
December runs -8.0°C compared to Niort's annual average high of 16.4°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 8.4°C and cooler evenings around 2.2°C.