In September, Blaine typically sees daytime highs of 21.5°C and overnight lows around 9.6°C. Compared to the annual average high of 12.2°C, September runs +9.3°C.
September in Blaine averages a daytime high of 21.5°C and an overnight low of 9.6°C.
September runs +9.3°C compared to Blaine's annual average high of 12.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 21.5°C and cooler evenings around 9.6°C.