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.
Portugal Travel Guide
Weather in Portugal
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)
Portugal Temperatures (Celsius)
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)
Portugal Perceived Temperature (C)
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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
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.
Snow on the Ground
The graph below shows the average snow on the ground in Portugal (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
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.
The graph below shows wind speed (max and average) in knots.
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|
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
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.