In September, Bayonne typically sees daytime highs of 24.5°C and overnight lows around 14.2°C. Compared to the annual average high of 16.5°C, September runs +8.0°C.
September in Bayonne averages a daytime high of 24.5°C and an overnight low of 14.2°C.
September runs +8.0°C compared to Bayonne's annual average high of 16.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 24.5°C and cooler evenings around 14.2°C.