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When to go · Porvoo

Porvoo in September

Good month. Outside the best window (Jun–Aug). Across Finland: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.

Key facts

Verdict
Good
Temperature
14°C / 7°C
average high / low
Rain days
10
Crowds
Medium
Finland overall
Prices
Medium
Finland overall

Verdict

GoodFinland month rating

Outside the best window (Jun–Aug). Across Finland: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.

Weather in September

Long-term averages
  • PorvooHighs around 14 °C, lows around 7 °C, rain on about 10 days
  • South coast, Finland · Helsinki, Turku, Porvoo, Ålandfine

    Around −5 °C in January, 20–23 °C in July; 19 h of daylight at midsummer, 6 h in late December. The sea often freezes near shore in cold winters.

Crowds and prices

Crowds · Finland overall
Medium
Prices · Finland overall
Medium

Finland overall: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.

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 Finland in September →