When to go · Isojoki
Isojoki in September
Good month. Outside the best window (Jul–Aug (berries, warm weather)). Across Finland: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.
Key facts
- Verdict
- Good
- Temperature
- 15°C (59°F)59°F (15°C) / 7°C (45°F)45°F (7°C)
- average high / low
- Rain days
- 8
- Crowds
- Medium
- Finland overall
- Prices
- Medium
- Finland overall
Verdict
Outside the best window (Jul–Aug (berries, warm weather)). Across Finland: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.
Is another month better than September?
September is rated good. These months rate higher:
Weather in September
- IsojokiHighs around 15 °C (59 °F), lows around 7 °C (45 °F), rain on about 8 daysHighs around 59 °F (15 °C), lows around 45 °F (7 °C), rain on about 8 days
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.
Compare two months
Weather, crowds and prices for any two months in Isojoki, side by side.
Verdict
Sep: Good
Jul: Great (better)
Daytime high
Sep: 15 °C (59 °F)59 °F (15 °C)
Jul: 20 °C (68 °F)68 °F (20 °C)
Night low
Sep: 7 °C (45 °F)45 °F (7 °C)
Jul: 11 °C (52 °F)52 °F (11 °C)
Rain days
Sep: 8 (better)
Jul: 9
Crowds
Sep: Medium
Jul: High
Prices
Sep: Medium
Jul: Medium
Festivals listed
Sep: 0
Jul: 0
September: Outside the best window (Jul–Aug (berries, warm weather)). Across Finland: Ruska autumn colours in Lapland and the first auroras over lakes that are not yet frozen.
July: Inside Isojoki's best window: Jul–Aug (berries, warm weather).
Isojoki: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings