When to go · Oslo
Oslo in May
Great month. Mild and long light; May 17 is Constitution Day.
Key facts
- Verdict
- Great
- Temperature
- 17°C (63°F)63°F (17°C) / 7°C (45°F)45°F (7°C)
- average high / low
- Rain days
- 8
- Crowds
- Medium
- Norway overall
- Prices
- Medium
- Norway overall
Verdict
Mild and long light; May 17 is Constitution Day.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than May?
No other month rates higher than May for Oslo in this guide.
Weather in May
- OsloHighs around 17 °C (63 °F), lows around 7 °C (45 °F), rain on about 8 daysHighs around 63 °F (17 °C), lows around 45 °F (7 °C), rain on about 8 days
- Oslo and the east, Norway · Oslo, Lillehammer, Røros, Jotunheimenbest weather
Continental: snowy winters of −5 to −10 °C (23 to 14 °F) inland, warm summers of 20–25 °C (68–77 °F). Ski season December–April.Continental: snowy winters of 23 to 14 °F (−5 to −10 °C) inland, warm summers of 68–77 °F (20–25 °C). Ski season December–April.
Spring season
Rising light and Constitution Day.
Watch: Changeable weather; Easter closures.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Constitution Day
May 17 · Karl Johans gate
Children's parades; most shops closed.
Labour Day
1 May · Norway
Public holiday; parades in Oslo.
Crowds and prices
- Crowds · Norway overall
- Medium
- Prices · Norway overall
- Medium
Norway overall: Fruit blossom in Hardanger, 17 May celebrations; mountain roads still closed early in the month.
Compare two months
Weather, crowds and prices for any two months in Oslo, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 17 °C (63 °F)63 °F (17 °C)
Jun: 21 °C (70 °F)70 °F (21 °C)
Night low
May: 7 °C (45 °F)45 °F (7 °C)
Jun: 11 °C (52 °F)52 °F (11 °C)
Rain days
May: 8 (better)
Jun: 10
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 2
Jun: 2
May: Mild and long light; May 17 is Constitution Day.
June: Long light nearly all night; good for the harbour.
Oslo: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings