In September, New Brunswick typically sees daytime highs of 25.0°C and overnight lows around 13.1°C. Compared to the annual average high of 17.0°C, September runs +7.9°C.
September in New Brunswick averages a daytime high of 25.0°C and an overnight low of 13.1°C.
September runs +7.9°C compared to New Brunswick's annual average high of 17.0°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 25.0°C and cooler evenings around 13.1°C.