The best times to visit Portugal for ideal weather are

June 18th 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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Portugal Travel Guide

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

    Temperature

    Average temperatures in Portugal vary little and are temperate most of the year. The area is in the top 16 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 Portugal, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early-to-mid-August where highs are regularly around 81.5°F (27.5°C) with temperatures rarely dropping below 65.3°F (18.5°C) at night.

    Portugal Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Portugal 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.

    Portugal Perceived Temperature (F)

    Key
    High
    Average
    Low

    Portugal Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Portugal 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 58.9 53.4 48.3
    Feb 59.9 53.7 48.1
    Mar 63 56.3 50.1
    Apr 65.9 59 52.8
    May 70.1 62.9 56.2
    Jun 75.1 67.6 60.7
    Jul 79 70.8 63.3
    Aug 80.6 72.1 64.6
    Sep 77.5 69.6 62.8
    Oct 71.9 65.1 59
    Nov 63.8 57.9 52.4
    Dec 59.7 54.2 49

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 14.9 11.9 9.1
    Feb 15.5 12.1 8.9
    Mar 17.2 13.5 10.1
    Apr 18.8 15 11.6
    May 21.2 17.2 13.4
    Jun 23.9 19.8 15.9
    Jul 26.1 21.6 17.4
    Aug 27 22.3 18.1
    Sep 25.3 20.9 17.1
    Oct 22.2 18.4 15
    Nov 17.7 14.4 11.3
    Dec 15.4 12.3 9.4

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Portugal are February, January, and then December. The lowest chance of rain or snow occurs around early July. For example, on the week of July 2nd there are only 0.5 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-January with an average of 2.7 days with significant precipitation the week of January 15th.

    When can you find snow in Portugal? Weather stations report quite a lot of snow likely to be deepest around March, especially close to mid-November. Powder (new snow) is most often falls around November 12th. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

    Chance of Precipitation

    The graph below shows the % chance of rainy and snowy days in Portugal.

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Portugal (in).

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 32.9 0.3 0.09
    Feb 35.7 0.7 0.09
    Mar 27.1 1 0.07
    Apr 28.6 0.3 0.08
    May 21.4 0 0.05
    Jun 14.3 0 0.03
    Jul 10 0 0.01
    Aug 8.6 0 0.01
    Sep 17.1 0 0.05
    Oct 27.1 0.6 0.09
    Nov 31.4 1 0.1
    Dec 32.9 0 0.11

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 32.9 0.8 0.23
    Feb 35.7 1.8 0.23
    Mar 27.1 2.5 0.18
    Apr 28.6 0.8 0.2
    May 21.4 0 0.13
    Jun 14.3 0 0.08
    Jul 10 0 0.03
    Aug 8.6 0 0.03
    Sep 17.1 0 0.13
    Oct 27.1 1.5 0.23
    Nov 31.4 2.5 0.25
    Dec 32.9 0 0.28

     

    Humidity and Wind

    Portugal has slightly high to average humidity compared to most tourist destinations. The least humid month is August (60.3% relative humidity), and the most humid month is January (74.7%).

    Wind in Portugal is usually moderate. The windiest month is March, followed by February and April. March’s average wind speed of around 8.4 knots (9.7 MPH or 15.6 KPH) is considered “gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early February where average top sustained speeds reach 14.3 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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 7.6 a gentle breeze 12.4 a moderate breeze
    Feb 8.3 a gentle breeze 13.6 a moderate breeze
    Mar 8.4 a gentle breeze 13.5 a moderate breeze
    Apr 7.9 a gentle breeze 12.9 a moderate breeze
    May 7.8 a gentle breeze 12.7 a moderate breeze
    Jun 7.6 a gentle breeze 12.4 a moderate breeze
    Jul 7.5 a gentle breeze 12.3 a moderate breeze
    Aug 7.3 a gentle breeze 12.2 a moderate breeze
    Sep 6.8 a light breeze 11.6 a moderate breeze
    Oct 7.3 a gentle breeze 12.1 a moderate breeze
    Nov 7.5 a gentle breeze 12.4 a moderate breeze
    Dec 7.9 a gentle breeze 12.8 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 74.7
    Feb 70.1
    Mar 65.4
    Apr 66.5
    May 63.8
    Jun 63.1
    Jul 61.5
    Aug 60.3
    Sep 62.8
    Oct 67.9
    Nov 69.7
    Dec 73.6

     

    Is it Safe to Travel to Portugal?

    As of 6/25/2017 there are no travel advisories or warnings for Portugal; 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 Portugal is June, followed by July and May. 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 Portugal in November. 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 39.5 in November means 39.5% of the tourists vs. June.

    Overall Portugal Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderate. Highs range from 73.2°F (22.9°C) and 61.1°F (16.2°C) with warmer temperatures in the later months. Rain is somewhat common with 7 to 9 days of precipitation per month. Spring is busy for tourism, which makes it a good time for those looking for things to do.

    Summer (June through August)

    The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 3 to 4 days of precipitation per month. June – August is the busiest season for tourism in Portugal, so lodging and other accommodations may cost more than usual.

    Fall (September through November)

    Fall daily highs range from 79.4°F (26.3°C) and 59.7°F (15.4°C), which will feel comfortable given the humidity and wind. It rains or snows a fair amount: 5 to 9 days per month. Tourism is the slowest during these months due to the weather, so hotels may be lower priced.

    Winter (December through February)

    Weather is too cold this time of year in Portugal to be enjoyable for warm weather travelers. The average high during this season is between 61.3°F (16.3°C) and 58.1°F (14.5°C). On average, it rains or snows a good amount: consistently 10 times per month. These times of year are fairly slow with tourists.

     

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