June in Dartmouth averages a daily high of 19.1°C with nights around 10.1°C. Expect roughly 12 wet days totalling 111.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Dartmouth is June–September.
Based on SHEARWATER A, NS CA (7.4km), 1995–2024. 11 years of June data.