In July, Waterloo typically sees daytime highs of 28.9°C and overnight lows around 16.4°C. Compared to the annual average high of 14.4°C, July runs +14.6°C.
July in Waterloo averages a daytime high of 28.9°C and an overnight low of 16.4°C.
July runs +14.6°C compared to Waterloo's annual average high of 14.4°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 28.9°C and cooler evenings around 16.4°C.