April in Kingston averages a daily high of 11.8°C with nights around 1°C. Expect roughly 12.1 wet days totalling 87.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Kingston is May–September.
Based on HARTINGTON IHD, ON CA (27.8km), 1995–2024. 29 years of April data.