June in Moncton averages a daily high of 21.4°C with nights around 10.3°C. Expect roughly 13.4 wet days totalling 85.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Moncton is June–September.
Based on BUCTOUCHE CDA CS, NB CA (37.7km), 1995–2024. 26 years of June data.