August in Luleå averages a daily high of 18.4°C with nights around 11.5°C. Expect roughly 10.9 wet days totalling 72.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Luleå is June–August.
Based on LULEA BERGNASET, SW (2.1km), 1995–2024. 11 years of August data.