The best times to visit Sintra for ideal weather are

April 16th to October 28th

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


Find a Hotel Here

 


    Weather in Sintra

    Temperature

    Average temperatures in Sintra vary somewhat. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a low chance of precipitation most of the year. The area is more temperate than most — in the 62nd percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Sintra, 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 79.4°F (26.3°C) with temperatures rarely dropping below 63.1°F (17.3°C) at night.

    Sintra Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Sintra 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.

    Sintra Perceived Temperature (F)

    Key
    High
    Average
    Low

    Sintra Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Sintra 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

    MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
    Jan58.152.244.9
    Feb58.852.744.7
    Mar62.655.947
    Apr65.358.850.4
    May68.562.453.8
    Jun72.967.358.8
    Jul76.170.161.6
    Aug77.57162.1
    Sep777060.7
    Oct72.465.456
    Nov62.456.548
    Dec58.753.546.2

    Show Celsius

    MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
    Jan14.511.27.2
    Feb14.911.57.1
    Mar1713.38.3
    Apr18.514.910.2
    May20.316.912.1
    Jun22.719.614.9
    Jul24.521.216.4
    Aug25.321.716.7
    Sep2521.115.9
    Oct22.418.613.3
    Nov16.913.68.9
    Dec14.811.97.9


     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sintra are August, July, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early July. For example, on the week of July 2nd there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early February with an average of 2 days of significant precipitation the week of February 5th.

    When can you find snow in Sintra? Weather stations report no annual snow. 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.

    Chanceof Precipitation

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

    Key
    Days with precipitation

    Snow on the Ground

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

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
    Jan21%02.9
    Feb28%03.7
    Mar13%01.5
    Apr16%02.4
    May11%01.5
    Jun6%00.7
    Jul1%00.1
    Aug1%00.1
    Sep6%00.6
    Oct14%01.9
    Nov20%02.9
    Dec20%03.8

    Show Centimeters

    MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
    Jan2107.4
    Feb2809.4
    Mar1303.8
    Apr1606.1
    May1103.8
    Jun601.8
    Jul100.3
    Aug100.3
    Sep601.5
    Oct1404.8
    Nov2007.4
    Dec2009.7

     

    Humidity and Wind

    Sintra has some very humid months, and above average humidity throughout the year. The least humid month is August (61.1% relative humidity), and the most humid month is January (74.9%).

    Wind in Sintra is usually moderate. The windiest month is July, followed by August and June. July’s average wind speed of around 10.1 knots (11.6 MPH or 18.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late March where average top sustained speeds reach 15.8 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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. 1 knot = 1.15 MPH or 1.85 KPH.

    MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
    Jan6.7Light breeze11.9Significant breeze
    Feb7.8Gentle breeze13.7Significant breeze
    Mar8.3Gentle breeze14.2Significant breeze
    Apr8.3Gentle breeze14Significant breeze
    May8.8Gentle breeze13.6Significant breeze
    Jun9.5Gentle breeze14Significant breeze
    Jul10.1Gentle breeze14.2Significant breeze
    Aug9.8Gentle breeze14.1Significant breeze
    Sep7.9Gentle breeze13.1Significant breeze
    Oct7.2Gentle breeze12.5Significant breeze
    Nov7.2Gentle breeze12.7Significant breeze
    Dec7.7Gentle breeze12.6Significant breeze

    Show Relative Humidity by Month

    MonthAvg. Relative Humidity
    Jan74.9%
    Feb71.5%
    Mar65%
    Apr67.1%
    May66.4%
    Jun64.4%
    Jul61.9%
    Aug61.1%
    Sep61.7%
    Oct65.6%
    Nov68.2%
    Dec72.5%

     

    Is it Safe to Travel to Sintra?

    Our best data indicates this area is generally safe. As of Mar 17, 2019 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. This advisory was last updated on Oct 15, 2018.


     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Sintra, Portugal is April, followed by January 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 Sintra in October. 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. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 50.9 in October means 50.9% of the tourists vs. April.


    Overall Sintra Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderate. Highs range from 72.1°F (22.3°C) and 59.5°F (15.3°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 5 days of significant precipitation per month. Spring is the busiest 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 the least precipitation with 0 to 2 days of precipitation per month. June – August is fairly slow season for tourism in Sintra, so lodging and other accommodations may cost slightly less.

    Fall (September through November)

    Fall daily highs range from 79.3°F (26.3°C) and 57.1°F (13.9°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 2 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

    Winter (December through February)

    Weather is too cold this time of year in Sintra to be enjoyable for warm weather travelers. The average high during this season is between 61.1°F (16.2°C) and 56.8°F (13.8°C). On average, it rains or snows a fair amount: 6 to 8 times per month. These times of year are the second busiest with tourists.

     

    Best Times to TravelPortugal › Sintra, Portugal


    Find a Hotel Here