In April, Saint John typically sees daytime highs of 8.5°C and overnight lows around -0.9°C. Compared to the annual average high of 10.4°C, April runs -1.8°C.
April in Saint John averages a daytime high of 8.5°C and an overnight low of -0.9°C.
April runs -1.8°C compared to Saint John's annual average high of 10.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 8.5°C and cooler evenings around -0.9°C.