Skip to content
Voykit

When to go · Oslo

Oslo in September

Good month. Crisp and bright.

Key facts

Verdict
Good
Temperature
17°C (63°F) / 9°C (48°F)
average high / low
Rain days
11
Crowds
Medium
Norway overall
Prices
Medium
Norway overall

Verdict

GoodVoykit month rating for Oslo

Crisp and bright.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

Is another month better than September?

September is rated good. These months rate higher:

Weather in September

Long-term averages
  • OsloHighs around 17 °C (63 °F), lows around 9 °C (48 °F), rain on about 11 days
  • Oslo and the east, Norway · Oslo, Lillehammer, Røros, Jotunheimenfine

    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.

Autumn season

Crisp days and colour in the parks.

Watch: Rain and early dark from October.

Crowds and prices

Crowds · Norway overall
Medium
Prices · Norway overall
Medium

Norway overall: Autumn colours, fewer crowds, first auroras in the north; fjord boats cut to winter timetables late in the month.

Compare two months

Weather, crowds and prices for any two months in Oslo, side by side.

  • Verdict

    Sep: Good

    May: Great (better)

  • Daytime high

    Sep: 17 °C (63 °F)

    May: 17 °C (63 °F)

  • Night low

    Sep: 9 °C (48 °F)

    May: 7 °C (45 °F)

  • Rain days

    Sep: 11

    May: 8 (better)

  • Crowds

    Sep: Medium

    May: Medium

  • Prices

    Sep: Medium

    May: Medium

  • Festivals listed

    Sep: 0

    May: 2

September: Crisp and bright.

May: Mild and long light; May 17 is Constitution Day.

Oslo: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm layer for the evenings
  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Norway in September →