The weather in May in Portugal
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.
Looking for great weather? May is a good time to be in Portugal. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Portugal. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
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.
Rainfall amount
In May, there is an average of 21 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
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.
May weather comparison
| Portugal | New York | |
|---|---|---|
| Average temperature | 24°C | 22°C |
| Max. temperature | 25°C | 28°C |
| Min. temperature | 15°C | -5°C |
| Total precipitation | 21 mm | 105 mm |
| Rainy days | 4 days | 14 days |
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.
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.
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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.
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.
Temperature charts
These charts show the average temperatures in May in Portugal. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Portugal
Temperature in May in Portugal over the years
Precipitation charts
These charts show the average amount of precipitation in May in Portugal. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Portugal
Total precipitation in May in Portugal over the years
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.
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.