Average weather for Portugal 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.
Start of May
The month of May starts in Portugal with warm temps, averaging around 23°C during the day and nights around 16°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid May
By mid-May, daytime temps rise to around 25°C, with nights around 17°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of May
By the end of May, the average daytime temperature in Portugal is around 25°C, while nighttime temps are about 18°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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.
Portugal in May |
New York | ||
|---|---|---|---|
 Average temperature |
24°C | 22°C | |
 Max. temperature |
25°C | 28°C | |
| Min. temperature |
22°C | -5°C | |
 Total precipitation |
21 mm | 105 mm | |
| Rainy days |
3 days | 14 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?
Looking for great weather? May is a good time to be in Portugal. The temperatures are nice, and there’s not too much rain.
Temperature records
With 34°C in 2015, Portugal reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 16°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 24°C.
Check out the climate of Portugal for all months and discover the best travel time
The climate in Portugal is based on weather data from Algarve. Other places, like Lisbon, Albufeira or Madeira, might have different weather. You can check out all destinations in Portugal to get the full picture of the climate.
Daily Temperature in May in Portugal
This chart shows the average daily high and low temperatures in May for Portugal, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Weather experiences in May in Portugal
Good
Unfortunately, there were also some overcast, slightly coole... more
Daily Precipitation in May in Portugal
The chart below shows the average daily precipitation in May for Portugal, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 3 days of precipitation 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 few years.
Total precipitation in May in Portugal over the years
This chart shows the average precipitation in May in Portugal, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Portugal
Click on any day in May to get detailed info about the usual 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 overcast, slightly cooler days. But in case of rain, it's always cozy 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.
