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When to go · Keflavík

Keflavík in August

Great month. Inside Keflavík's best window: May–Sep.

Key facts

Verdict
Great
Temperature
16°C (61°F) / 9°C (48°F)
average high / low
Rain days
5
Crowds
High
Iceland overall
Prices
High
Iceland overall

Verdict

GreatBest and avoid months for Keflavík

Inside Keflavík's best window: May–Sep.

Is another month better than August?

No other month rates higher than August for Keflavík in this guide.

Weather in August

Long-term averages
  • KeflavíkHighs around 16 °C (61 °F), lows around 9 °C (48 °F), rain on about 5 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.

  • Merchants' Weekend and Þjóðhátíð big impact

    First weekend of Aug (+Monday) · Iceland

    National road-trip weekend; Westman Islands festival sells out ferries.

Crowds and prices

Crowds · Iceland overall
High
Prices · Iceland overall
High

Iceland overall: Still peak; puffins leave mid-month; first dark nights for auroras at the end.

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

    Aug: Great

    May: Great

  • Daytime high

    Aug: 16 °C (61 °F)

    May: 13 °C (55 °F)

  • Night low

    Aug: 9 °C (48 °F)

    May: 4 °C (39 °F)

  • Rain days

    Aug: 5 (better)

    May: 7

  • Crowds

    Aug: High

    May: Medium

  • Prices

    Aug: High

    May: Medium

  • Festivals listed

    Aug: 1

    May: 0

August: 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

Build the full packing list for your trip →

Across Iceland in August →