June in Reykjavík averages a daily high of 13.1°C with nights around 7.3°C. Expect roughly 15.4 wet days totalling 54.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Reykjavík is June–August.
Based on REYKJAVIK, IC (1km), 1995–2024. 30 years of June data.