Temperatures in May
It's warm in May in Portugal with an average temperature of 24°C. Temperatures this month range from a low of 22°C to a high of 25°C. At night, you can expect temperatures between 15°C and 18°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Portugal in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Portugal with warm temperatures, averaging around 23°C during the day and nights close to 16°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 25°C, with nights close to 17°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of May
By the end of May, the average daytime temperature in Portugal will be around 25°C, with nights close to 18°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
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Precipitation in May
In May, there is an average of 21 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average chance of precipitation is only 9% in May. There are only a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Portugal. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Portugal in May |
UK | ||
|---|---|---|---|
 Average Temperature |
24°C | 18°C | |
 High Temp |
25°C | 21°C | |
| Low Temp |
22°C | 15°C | |
 Total Precipitation |
21 mm | 46 mm | |
| Rainy Days |
3 days | 8 days | |
April
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Portugal?
Want nice weather? Then May is a great time to be in Portugal. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Portugal in May
With 34°C, Portugal hit the highest temperature in the last 10 years in May 2015. The lowest daytime temperature in this month was 16°C in 2018. The extreme night temperatures ranged from a low of 9°C to a high of 24°C.
Check out the climate of Portugal for all months and discover the best travel time
The climate of Portugal is based on weather data from Algarve. Other spots, like Lisbon, Albufeira or Madeira, might have different weather. You can check out all destinations in Portugal for a full picture of the climate.
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Daily Temperature in May in Portugal
This chart shows the average daily temperatures, both day and night, for each day in May in Portugal, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in May in Portugal
Good
Unfortunately, there were also some cloudy, slightly cooler ... more
Daily Precipitation in May in Portugal
The chart below shows the average daily precipitation in May for Portugal, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 3 days of rain in Portugal.
Daily UV Index in May in Portugal
This chart shows the average daily UV index in May in Portugal, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Portugal Over the Years
This chart shows the average temperature in May in Portugal, measured in degrees Celsius, over the past years.
Total Precipitation in May in Portugal Over the Years
This chart shows the average precipitation in May in Portugal, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Portugal
Click on a specific day in May for detailed info on the typical weather on that day in Portugal. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Portugal
The weather in May in Portugal is rated 4 out of 5 stars by 1 visitor. Have you been to Portugal? Share your weather experience to help other visitors.
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Unfortunately, there were also some cloudy, slightly cooler days. But in case of rain, it's always cosy inside.— This text is automatically translated to English
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Average Weather in Portugal by Month
Click on a month below to see detailed weather info for Portugal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
