The best times to visit Portugal for ideal weather are

April 16th to October 14th

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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Weather in Portugal

Temperature

Average temperatures in Portugal vary somewhat. Considering humidity, temperatures feel very enjoyable all year with a fair chance of precipitation about half of the year. The area is more temperate than most — in the 67th 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 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

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Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Portugal 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 to mid August. For example, on the week of August 6th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 2 days of significant precipitation the week of December 24th.

When can you find snow in Portugal? Weather stations report very large amounts of snow likely to be deepest around November, especially close to mid November. The best time to ski (if at all) in Portugal is often around around November 12th when fresh powder is deepest. 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 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 19% 4.7 2.8
Feb 21% 29.1 2.6
Mar 16% 20.9 2.2
Apr 17% 13.4 2.3
May 11% 0 1.6
Jun 7% 0 0.8
Jul 4% 0 0.4
Aug 3% 0 0.4
Sep 9% 0 1.4
Oct 16% 12.9 2.8
Nov 20% 42.9 3.1
Dec 20% 0.4 3.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 19 11.9 7.1
Feb 21 73.9 6.6
Mar 16 53.1 5.6
Apr 17 34 5.8
May 11 0 4.1
Jun 7 0 2
Jul 4 0 1
Aug 3 0 1
Sep 9 0 3.6
Oct 16 32.8 7.1
Nov 20 109 7.9
Dec 20 1 8.6

 

Humidity and Wind

Portugal has some very humid months, and above average humidity throughout the year. 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 (9.6 MPH or 15.5 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 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. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 7.6 Gentle breeze 12.4 Significant breeze
Feb 8.3 Gentle breeze 13.6 Significant breeze
Mar 8.4 Gentle breeze 13.5 Significant breeze
Apr 7.9 Gentle breeze 12.9 Significant breeze
May 7.8 Gentle breeze 12.7 Significant breeze
Jun 7.6 Gentle breeze 12.4 Significant breeze
Jul 7.5 Gentle breeze 12.3 Significant breeze
Aug 7.3 Gentle breeze 12.2 Significant breeze
Sep 6.8 Light breeze 11.6 Significant breeze
Oct 7.3 Gentle breeze 12.1 Significant breeze
Nov 7.5 Gentle breeze 12.4 Significant breeze
Dec 7.9 Gentle breeze 12.8 Significant 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?

Our best data indicates this area is generally safe. As of Jan 18, 2018 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. Tourism data for this area is very reliable. Displayed data is calculated relative to the peak, so a score of 39.5 in November means 39.5% of the tourists vs. June.


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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 3 to 5 days of significant precipitation per month. Spring is the second 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 1 to 2 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 significant amount: 3 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 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 fair amount: consistently 6 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel › Portugal

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