When to go · Keflavík
Keflavík in March
Good month. Outside the best window (May–Sep). Across Iceland: Balance of light and dark: auroras plus 11–13 h of day; Easter in late March 2027.
Key facts
- Verdict
- Good
- Temperature
- 6°C (43°F)43°F (6°C) / −1°C (30°F)30°F (−1°C)
- average high / low
- Rain days
- 10
- Crowds
- Medium
- Iceland overall
- Prices
- Medium
- Iceland overall
Verdict
Outside the best window (May–Sep). Across Iceland: Balance of light and dark: auroras plus 11–13 h of day; Easter in late March 2027.
Is another month better than March?
March is rated good. These months rate higher:
Weather in March
- KeflavíkHighs around 6 °C (43 °F), lows around -1 °C (30 °F), rain on about 10 daysHighs around 43 °F (6 °C), lows around 30 °F (-1 °C), rain on about 10 days
Crowds and prices
- Crowds · Iceland overall
- Medium
- Prices · Iceland overall
- Medium
Iceland overall: Balance of light and dark: auroras plus 11–13 h of day; Easter in late March 2027.
Compare two months
Weather, crowds and prices for any two months in Keflavík, side by side.
Verdict
Mar: Good
May: Great (better)
Daytime high
Mar: 6 °C (43 °F)43 °F (6 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Night low
Mar: -1 °C (30 °F)30 °F (-1 °C)
May: 4 °C (39 °F)39 °F (4 °C)
Rain days
Mar: 10
May: 7 (better)
Crowds
Mar: Medium
May: Medium
Prices
Mar: Medium
May: Medium
Festivals listed
Mar: 0
May: 0
March: Outside the best window (May–Sep). Across Iceland: Balance of light and dark: auroras plus 11–13 h of day; Easter in late March 2027.
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 coat, hat and gloves for mornings and evenings
- A rain jacket or umbrella and shoes that dry fast