The best times to visit Iceland for ideal weather are

August 13th to September 2nd

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

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Iceland Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Iceland

    Temperature

    Average temperatures in Iceland vary little and are too cold to be considered temperate by most. The area is in the bottom 1 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Iceland, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 54.4°F (12.4°C) with temperatures rarely dropping below 44.8°F (7.1°C) at night.

    Iceland Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Iceland Temperatures (Celsius)

    Key
    High
    Average
    Low

    “Feels-Like” Temperatures

    The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

    Iceland Perceived Temperature (F)

    Key
    High
    Average
    Low

    Iceland Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Iceland Temperatures by Month

    Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

    Show Fahrenheit

    Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
    Jan 35 30.7 26.1
    Feb 34.8 30.3 25.8
    Mar 35.5 31 26.5
    Apr 38.9 34.2 29.4
    May 43.2 38.6 34
    Jun 50.5 45.7 41.1
    Jul 53.3 48.5 44.3
    Aug 53.2 48.7 44.4
    Sep 50.3 45.9 41.7
    Oct 42.7 38.7 34.6
    Nov 38.9 34.8 30.8
    Dec 34.5 29.9 25.1

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 1.7 -0.7 -3.3
    Feb 1.6 -0.9 -3.4
    Mar 1.9 -0.6 -3.1
    Apr 3.8 1.2 -1.4
    May 6.2 3.7 1.1
    Jun 10.3 7.6 5.1
    Jul 11.8 9.2 6.8
    Aug 11.8 9.3 6.9
    Sep 10.2 7.7 5.4
    Oct 5.9 3.7 1.4
    Nov 3.8 1.6 -0.7
    Dec 1.4 -1.2 -3.8

     

     

    Humidity and Wind

    Iceland has slightly high to average humidity compared to most tourist destinations. The least humid month is April (69.1% relative humidity), and the most humid month is August (76.8%).

    Wind in Iceland is usually stronger than usual. The windiest month is February, followed by December and January. February’s average wind speed of around 15.1 knots (17.4 MPH or 28 KPH) is considered “moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid-February where average top sustained speeds reach 25.7 knots, which is considered a strong breeze.

    Relative Humidity (%)

    The graph below shows the average % humidity by month in Iceland.

    Key
    Avg. Relative Humidity

    Wind

    The graph below shows wind speed (max and average) in knots.

    Key
    Max Sustained Wind
    Average Daily Wind

    Average Wind Speeds

    Show Wind Speeds

    All wind speeds are in knots.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 13.7 a moderate breeze 22.7 a strong breeze
    Feb 15.1 a moderate breeze 24.2 a strong breeze
    Mar 13.3 a moderate breeze 22.9 a strong breeze
    Apr 13.3 a moderate breeze 21.1 a fresh breeze
    May 11.4 a moderate breeze 17.9 a strong breeze
    Jun 9.7 a gentle breeze 15.5 a moderate breeze
    Jul 9.1 a gentle breeze 14.6 a strong breeze
    Aug 10 a gentle breeze 16.3 a moderate breeze
    Sep 11.4 a moderate breeze 18.5 a strong breeze
    Oct 12 a moderate breeze 19.6 a fresh breeze
    Nov 13 a moderate breeze 21 a strong breeze
    Dec 14.4 a moderate breeze 24 a strong breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 74.4
    Feb 72
    Mar 72.6
    Apr 69.1
    May 70
    Jun 72
    Jul 76.3
    Aug 76.8
    Sep 75
    Oct 75.8
    Nov 75.7
    Dec 74.6

     

    Is it Safe to Travel to Iceland?

    As of 5/2/2017 there are no travel advisories or warnings for Iceland; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Iceland is January, followed by December and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Iceland in April. Those willing to visit at these times will likely find it the least expensive month.

    Estimated Tourism by Month

     

    Most Popular Months to Visit

    Key
    Tourists Seeking Accommodations

    Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Displayed data is calculated relative to the peak, so a score of 66.7 in April means 66.7% of the tourists vs. January.

    Overall Iceland Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel very cold. Highs range from 47.5°F (8.6°C) and 33.8°F (1°C) with warmer temperatures in the later months. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

    Summer (June through August)

    The middle-year months have cold weather with high temperatures that are still quite cold. June – August is busy season for tourism in Iceland, so lodging and other accommodations may cost slightly more.

    Fall (September through November)

    Fall daily highs range from 53.2°F (11.8°C) and 35.4°F (1.9°C), which will feel chilly given the humidity and wind. Tourism is fairly slow during these months due to the weather, so hotels may be affordably priced.

    Winter (December through February)

    Weather is far too cold this time of year in Iceland to be enjoyable for warm weather travelers. The average high during this season is between 37.4°F (3°C) and 33°F (0.6°C). These times of year are the busiest with tourists.

     

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