Portugal weather in May
Long-run climate averages for Portugal in May, plus what the forecast models say for the days ahead.
In May, Portugal averages 24°C by day and 15°C at night. The wettest month is usually October.
May in Portugal averages a daytime high of 24°C and an overnight low of 15°C, which reads as warm for this part of the world. Across the whole year Portugal sees roughly 465 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Portugal forecast with every model compared and how much they currently agree.
Portugal weather by month
what to expect in Portugal through the yearHere is Portugal's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Portugal by season.
Common questions
How warm is Portugal in May?
Is May a good time to visit Portugal?
Does it rain a lot in Portugal in May?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .