June in Alkmaar averages a daily high of 20.2°C with nights around 10.8°C. Expect roughly 11.5 wet days totalling 56.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Alkmaar is June–September.
Based on BERKHOUT, NL (15.6km), 1995–2024. 26 years of June data.