When to go · Keflavík
Keflavík in September
Great month. Inside Keflavík's best window: May–Sep.
Key facts
- Verdict
- Great
- Temperature
- 13°C (55°F)55°F (13°C) / 6°C (43°F)43°F (6°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- Iceland overall
- Prices
- Medium
- Iceland overall
Verdict
Inside Keflavík's best window: May–Sep.
Is another month better than September?
No other month rates higher than September for Keflavík in this guide.
Weather in September
- KeflavíkHighs around 13 °C (55 °F), lows around 6 °C (43 °F), rain on about 7 daysHighs around 55 °F (13 °C), lows around 43 °F (6 °C), rain on about 7 days
Crowds and prices
- Crowds · Iceland overall
- Medium
- Prices · Iceland overall
- Medium
Iceland overall: Autumn colours, aurora season begins, highlands close; great shoulder month.
Compare two months
Weather, crowds and prices for any two months in Keflavík, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 13 °C (55 °F)55 °F (13 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Night low
Sep: 6 °C (43 °F)43 °F (6 °C)
May: 4 °C (39 °F)39 °F (4 °C)
Rain days
Sep: 7
May: 7
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 0
May: 0
September: Inside Keflavík's best window: May–Sep.
May: Inside Keflavík's best window: May–Sep.
Keflavík: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings