What to Wear in Oslo in May
Mild and lovely — Constitution Day on 17 May. Expect 7°–16°C with 8 rainy days on average.
☀️
High
16°C
🌙
Low
7°C
🌧️
Rain days
8
🌡️
Feel
Pleasantly Cool
Typical outfit
~12°C average
About May in Oslo
May in Oslo typically brings mild and lovely — constitution day on 17 may. With averages of 7°–16°C, the conditions call for fresh and crisp weather — the perfect excuse for cozy knits and stylish layering.
Think in layers: a thermal base, a knit mid-layer, and a windproof outer. You can strip back as the day warms.