Late spring · Weather & things to do
Porto in May
Porto warms up: highs climb to 67°F (19°C), from 62°F in April, with lows of 54°F (12°C) and about 2.4 in (60 mm) of rain.
May opens the best stretch on our comfort score, at 92/100 (4th of 12).
- Avg high
- 67°F (19°C)
- Avg low
- 54°F (12°C)
- Rain
- 2.4 in (60 mm)
- Humidity
- 78%
- Cloud cover
- 46%
- Daylight
- ~14 h 18 min
- Comfort score
- 92/100 · Great
What May feels like
Expect mild afternoons around 67°F (19°C), good for long walks.
After dark, temperatures fall to about 54°F (12°C).
Some rain is likely, about 2.4 in (60 mm) in the month, so pack for a shower or two.
Plan around May
May is one of Porto's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: May – September.
- Comfort improves from 83/100 in April to 92/100.
- May sits inside the Apr – Jun window our Portugal by Rail route recommends.
What to pack for May
- A warm layer for eveningslows near 54°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Porto in May
May is good outdoor weather here, so these picks lean toward the open air.
Dom Luís I Bridge
Double-deck iron bridge; walk the top level for the classic view.
Why now May scores 92/100 for comfort, good conditions for being outside.
Mercado do Bolhão
Restored 19th-century market with produce, fish and small food stalls.
Livraria Lello
Neo-Gothic bookstore with a carved red staircase.
Graham's Port Lodge
Port cellars on the Gaia hillside with a tasting terrace over the river.
Why now Highs near 67°F and 2.4 in of monthly rain make this an easy outdoor pick.
Serralves
Contemporary art museum by Álvaro Siza set in large Art Deco gardens.
Nearby in May
- Coimbra in May~67 mi · highs 76°F, 2.1 in rain · 5°C (10°F) warmer by day, about as wet
- Lisbon in May~170 mi · highs 66°F, 1.2 in rain · similar daytime temperatures, drier
- Seville in May~296 mi · highs 83°F, 1.1 in rain · 9°C (17°F) warmer by day, drier
- Córdoba in May~305 mi · highs 82°F, 1.3 in rain · 9°C (15°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Porto in May: quick answers
Is May a good time to visit Porto?
Yes. On the climate data it's one of the best months, scoring 92/100. Expect highs of 67°F (19°C) and 2.4 in (60 mm) of rain. May is inside the Apr – Jun window our Portugal by Rail route recommends.
How hot is Porto in May?
Average highs are 67°F (19°C) and average lows 54°F (12°C), making it the 6th-warmest month by daytime highs.
Does it rain a lot in Porto in May?
Some: about 2.4 in (60 mm) of rain falls across May on average, the 5th-driest month of the year. The annual total is about 39.8 in (1010 mm).
What should I pack for Porto in May?
Bring a warm layer for evenings (lows near 54°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Routes in season in May
- Portugal by Rail Apr – Jun
Planning Porto in May?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.