The average temperature goes up to 15°C (59°F), accompanied by encouraging high averages of up to 19°C on a cloudless day.

Porto, Porto 66°F Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities For Business May 2024

May weather in Porto Portugal. Daily high temperatures increase by 5°F, from 65°F to 69°F, rarely falling below 58°F or exceeding 80°F.

Porto weather in May 2025. Expect 20°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Porto in May.

If you are planning a visit to Northern Portugal in the spring, it is much better to delay the trip until mid-May or visit the much drier Algarve region.

The weather in Porto in May is mildly cool and breezy, with average highs of 69°F (20°C) and lows of 53°F (12°C).

There is a 64% chance of a perfect sunny day and a 36% chance of seeing a mixture of sunshine and clouds with an average 16mm of rainfall this month.

2 февр. 2024 г. · In May, the average high-temperature and low-temperature are 20.1°C (68.2°F) and 11.6°C (52.9°F) respectively.

May weather forecast in Porto · 1 May. Wednesday. +18°. +14° · 2 May. Thursday. +19°. +16° · 3 May. Friday. +20°. +15° · 4 May. Saturday. +18°. +14° · 5 May.