Weather in Porto in May
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for May in Porto.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn May, Porto sees average highs of 20.6°C (69.1°F) and lows of 13.3°C. Conditions are pleasantly mild and moderately rainy (9 rainy days), with roughly 11.9 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Porto — every month compared. Once you know when to go, find your Porto packing list at 247PackingList.
Get ready for Porto in May
Search flights to Porto
Compare 100+ airlines for May — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Porto in May
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
Compare all months in Porto
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 13.3°C | 156.7mm | 9/10 |
| February | 15.6°C | 90.6mm | 10/10 |
| March | 16.3°C | 102.4mm | 9/10 |
| April | 17.8°C | 102.7mm | 9/10 |
| May | 20.6°C | 74.1mm | 10/10 |
| June | 21.5°C | 52.0mm | 10/10 |
| July | 24.5°C | 12.7mm | 10/10 |
| August | 23.9°C | 12.8mm | 10/10 |
| September | 23.3°C | 104.2mm | 9/10 |
| October | 20.6°C | 232.9mm | 8/10 |
| November | 16.8°C | 169.7mm | 9/10 |
| December | 14.4°C | 249.5mm | 8/10 |
Full month-by-month guide: best time to visit Porto →
For facts about Portugal — currency, language and dialling code — see our Portugal country guide at 247CountryInfo. Travellers also find it useful to keep a Porto travel guide to hand. Check clothing sizes in Portugal before you shop.
Frequently Asked Questions
Is May a good time to visit Porto?
May rates 10/10 for visiting Porto — excellent time to visit. Expect average highs of 20.6°C, 74.1mm of rain across the month and about 11.9 hours of daily sunshine.
What is the temperature in Porto in May?
In May, Porto has average highs of 20.6°C (69.1°F) and average lows of 13.3°C (55.9°F).
Does it rain in Porto in May?
Some rain is likely. Porto averages 74.1mm across about 9 rainy days in May, so a light waterproof layer is worth packing.
What should I wear in Porto in May?
For Porto in May (20.6°C highs / 13.3°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, light waterproof layer.
More essentials for Porto in May
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.