Average temperatures, rainfall and packing tips for Porto, Portugal in May
May in Porto is typically mild, with average daytime highs around 19°C and nights near 12°C. Temperature-wise it sits mid-range for Porto (the 7th warmest month).
May is one of the wetter months in Porto, with around 80 mm of rain - plan around showers.
← Porto weather tomorrow (live)
In May, Porto averages a daytime high of about 19°C and a night-time low of around 12°C, based on recent historical data.
May is one of the wetter months in Porto, with around 80 mm of rain - plan around showers.
May is one of the most comfortable months to visit Porto - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.