In July, Waterloo typically sees daytime highs of 25.9°C and overnight lows around 13.2°C. Compared to the annual average high of 11.9°C, July runs +14.1°C.
July in Waterloo averages a daytime high of 25.9°C and an overnight low of 13.2°C.
July runs +14.1°C compared to Waterloo's annual average high of 11.9°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 13.2°C.