When to go · Karkkila
Karkkila in September
Great month. Inside Karkkila's best window: Jun–Aug, Sep (warm weather for beach and open‑air sites).
Key facts
- Verdict
- Great
- Temperature
- 17°C (63°F)63°F (17°C) / 10°C (50°F)50°F (10°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Finland overall
- Prices
- Medium
- Finland overall
Verdict
Inside Karkkila's best window: Jun–Aug, Sep (warm weather for beach and open‑air sites).
Is another month better than September?
No other month rates higher than September for Karkkila in this guide.
Weather in September
- KarkkilaHighs around 17 °C (63 °F), lows around 10 °C (50 °F), rain on about 9 daysHighs around 63 °F (17 °C), lows around 50 °F (10 °C), rain on about 9 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 Karkkila, side by side.
Verdict
Sep: Great
Jun: Great
Daytime high
Sep: 17 °C (63 °F)63 °F (17 °C)
Jun: 20 °C (68 °F)68 °F (20 °C)
Night low
Sep: 10 °C (50 °F)50 °F (10 °C)
Jun: 12 °C (54 °F)54 °F (12 °C)
Rain days
Sep: 9 (better)
Jun: 11
Crowds
Sep: Medium
Jun: Medium
Prices
Sep: Medium
Jun: Medium
Festivals listed
Sep: 0
Jun: 1
September: Inside Karkkila's best window: Jun–Aug, Sep (warm weather for beach and open‑air sites).
June: Inside Karkkila's best window: Jun–Aug, Sep (warm weather for beach and open‑air sites).
Karkkila: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings