When to go · Keflavík
Keflavík in December
Mixed month. Outside the best window (May–Sep). Across Iceland: Darkest month, Christmas lights and fireworks; storms can close roads for days.
Key facts
- Verdict
- Mixed
- Temperature
- 3°C (37°F)37°F (3°C) / −2°C (28°F)28°F (−2°C)
- average high / low
- Rain days
- 13
- Crowds
- Medium
- Iceland overall
- Prices
- High
- Iceland overall
Verdict
Outside the best window (May–Sep). Across Iceland: Darkest month, Christmas lights and fireworks; storms can close roads for days.
Is another month better than December?
December is rated mixed. These months rate higher:
Weather in December
- KeflavíkHighs around 3 °C (37 °F), lows around -2 °C (28 °F), rain on about 13 daysHighs around 37 °F (3 °C), lows around 28 °F (-2 °C), rain on about 13 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas and New Year big impact
24–26 Dec, 31 Dec – 1 Jan · Iceland
Shops and restaurants close from mid-afternoon on the 24th and 31st; huge private fireworks on New Year's Eve.
Crowds and prices
- Crowds · Iceland overall
- Medium
- Prices · Iceland overall
- High
Iceland overall: Darkest month, Christmas lights and fireworks; storms can close roads for days.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Keflavík, side by side.
Verdict
Dec: Mixed
May: Great (better)
Daytime high
Dec: 3 °C (37 °F)37 °F (3 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Night low
Dec: -2 °C (28 °F)28 °F (-2 °C)
May: 4 °C (39 °F)39 °F (4 °C)
Rain days
Dec: 13
May: 7 (better)
Crowds
Dec: Medium
May: Medium
Prices
Dec: High
May: Medium
Festivals listed
Dec: 1
May: 0
December: Outside the best window (May–Sep). Across Iceland: Darkest month, Christmas lights and fireworks; storms can close roads for days.
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