What May feels like in Porto
Late spring arrives in Porto with May. The middle of the day is pleasantly mild. Little changes after sunset — nights are cool, only slightly below the daytime level. The air is fairly humid, though at these temperatures it rarely feels oppressive.
Rain in Porto in May
It is a changeable month: rain comes about one day in 3, with dry spells in between. Each rainy day adds about 8.3 mm (0.3 in), a proper wetting rather than a sprinkle. That is lighter than the city's yearly norm of about 11.3 mm per rainy day.
Daylight and sunshine in May
On 15 May the sun rises at about 6:17 am and sets around 8:44 pm local time, giving 14 h 27 min of daylight. The days are stretching out — 1 h 11 min more daylight than mid-April. About 84% of daylight hours are sunny; in short, skies are mostly clear.
How May compares to the rest of the year
In Porto's temperature order, May sits as the 6th warmest month. Against April, the average high is 2.3°C (4.1°F) higher, with 44 mm less rain. The warm-up continues into June. By June, typical highs are 22.6°C (72.7°F).
Who May suits
- Sightseeing: a good fit — comfortable enough to explore on foot all day.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
- Beach: less ideal — too many rainy days.
Tips for visiting Porto in May
Rain Protection
A compact umbrella and a light waterproof jacket.
Sunglasses
Plenty of sun, so bring sunglasses and a cap.
Quick questions
How warm is Porto in May?
Afternoons average 20.2°C (68.4°F) and nights about 12.6°C (54.7°F) — mild by most people's standards. It is the 6th warmest month of the year.
Does it rain a lot in Porto in May?
Yes, fairly — rain falls about one day in 3 and totals about 83 mm, so an umbrella is worth carrying.
What should I wear in Porto in May?
Pack rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is May or June better for visiting Porto?
June scores better on our climate ranking (#4 of 12 vs #5), rated Great against Great. June is warmer and has fewer rainy days.