In April, Ottawa typically sees daytime highs of 11.1°C and overnight lows around -0.2°C. Compared to the annual average high of 11.1°C, April runs +0.0°C.
April in Ottawa averages a daytime high of 11.1°C and an overnight low of -0.2°C.
April runs +0.0°C compared to Ottawa's annual average high of 11.1°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 11.1°C and cooler evenings around -0.2°C.