Porto - When to Visit

When to Visit Porto

Climate guide & best times to travel

Monthly Climate Data for Porto Average temperature and rainfall by month Climate Overview 0°C 7°C 15°C 22°C 30°C Rainfall (mm) 0 90 180 Jan Jan: 13.0°C high, 5.0°C low, 147mm rain Feb Feb: 15.0°C high, 5.0°C low, 112mm rain Mar Mar: 17.0°C high, 7.0°C low, 97mm rain Apr Apr: 18.0°C high, 9.0°C low, 117mm rain May May: 20.0°C high, 11.0°C low, 89mm rain Jun Jun: 23.0°C high, 14.0°C low, 41mm rain Jul Jul: 25.0°C high, 15.0°C low, 20mm rain Aug Aug: 25.0°C high, 15.0°C low, 33mm rain Sep Sep: 24.0°C high, 14.0°C low, 71mm rain Oct Oct: 20.0°C high, 12.0°C low, 157mm rain Nov Nov: 17.0°C high, 8.0°C low, 173mm rain Dec Dec: 14.0°C high, 6.0°C low, 180mm rain Temperature Rainfall
Porto enjoys a Mediterranean climate with Atlantic influences, which basically means you get mild, rainy winters and warm, dry summers—though the Atlantic keeps things cooler than you might expect for southern Europe. The city really operates on two distinct seasons: a wet period from October through April where you'll see regular rainfall (November through January are particularly soggy), and a dry, sunny stretch from June through September when rain becomes pretty rare. The temperatures stay relatively moderate year-round, rarely getting uncomfortably hot or freezing cold, which is one of Porto's underrated advantages. What's interesting about Porto is that it never really gets extreme in either direction. Summer highs hover in the mid-to-upper 70s°F, so you're not dealing with scorching Mediterranean heat, and winter lows rarely dip below the low 40s°F. The humidity stays fairly consistent at around 70% throughout the year, which you'll notice more during the cooler months when that dampness can make it feel chillier than the thermometer suggests. The shoulder seasons—particularly late spring and early autumn—tend to offer the sweet spot of decent weather without the peak summer crowds, though you'll want to pack for the occasional rainy day even then.

Best Time to Visit

Beach & Relaxation
July and August are your best bet, with the warmest temperatures (upper 70s°F) and minimal rainfall, though the Atlantic keeps the water pretty brisk even in peak summer.
Cultural Exploration
May, June, and September offer comfortable temperatures in the upper 60s to mid-70s°F with manageable crowds and less rain than other shoulder months, making them ideal for wandering Porto's hilly streets.
Adventure & Hiking
April through June gives you mild temperatures and the Douro Valley in bloom, though you'll want to pack rain gear for April's occasional showers.
Budget Travel
November through March sees the lowest prices and fewer tourists, but you're trading savings for wet weather and shorter days—worth it if you don't mind the rain.

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What to Pack

Year-Round Essentials

Comfortable walking shoes
Porto's historic center is built on hills with cobblestone streets and uneven surfaces, so supportive footwear is essential regardless of when you visit.
Light rain jacket or packable umbrella
Even during the dry summer months, the Atlantic weather can be unpredictable, and you'll definitely want rain protection from October through April.
Daypack or crossbody bag
You'll be doing a lot of walking and exploring, and having your hands free while navigating Porto's steep streets makes life much easier.
Reusable water bottle
Porto's tap water is perfectly safe to drink, and you'll save money while staying hydrated during all that uphill walking.
Sunglasses and sunscreen
The sun can be surprisingly strong even on mild days, especially with the reflection off the Douro River and the Atlantic.
Power bank
You'll be using your phone constantly for maps, photos, and restaurant recommendations, and Porto's hilly terrain drains batteries faster.

Spring (Mar-May)

Clothing
Light sweaters or cardigans, Long pants or jeans, T-shirts and light long-sleeve shirts, One warmer jacket for evenings
Footwear
Waterproof walking shoes or boots that can handle both cobblestones and occasional rain
Accessories
Compact umbrella, Light scarf, Sunglasses
Layering Tip
Spring weather can be variable, so think in terms of layers you can add or remove as temperatures shift from cool mornings to warmer afternoons.

Summer (Jun-Aug)

Clothing
Light, breathable shirts and tops, Shorts and summer dresses, One light sweater for air-conditioned spaces, Swimwear for beach trips
Footwear
Comfortable walking sandals or breathable sneakers, plus flip-flops if you're planning beach visits
Accessories
Sun hat or cap, Sunglasses, Light day scarf for sun protection
Layering Tip
Evenings can cool down near the coast, so bring one light layer, but generally summer in Porto is straightforward warm-weather dressing.

Autumn (Sep-Nov)

Clothing
Medium-weight sweaters, Long pants and jeans, Mix of short and long-sleeve shirts, Water-resistant jacket
Footwear
Waterproof walking shoes or boots become increasingly important as November approaches
Accessories
Umbrella, Scarf, Light gloves for late November
Layering Tip
September feels like extended summer, but by November you're layering properly for wet, cool weather—pack for the full range.

Winter (Dec-Feb)

Clothing
Warm sweaters and fleeces, Long pants and jeans, Long-sleeve base layers, Warm, waterproof coat
Footwear
Waterproof boots with good grip for wet cobblestones are essential during Porto's rainy winter months
Accessories
Warm scarf, Gloves, Beanie or warm hat, Sturdy umbrella
Layering Tip
The dampness makes it feel colder than the temperature suggests, so focus on layers that keep you warm even when wet, plus a good outer shell.
Plug Type
Type C and Type F (European two-pin plugs)
Voltage
230V, 50Hz
Adapter Note
Travelers from the US, UK, and most non-European countries will need a plug adapter; those from North America will also need to ensure their devices can handle 230V.

Skip These Items

Heavy winter coat (unless you're visiting in January/February and really feel the cold) Too many shoes (one comfortable walking pair and one dressier option covers most situations) Beach towel (hotels provide them, and they take up valuable luggage space) Excessive toiletries (pharmacies are everywhere and well-stocked with familiar brands) Formal clothing (Porto is fairly casual, even nice restaurants rarely require more than smart-casual attire)

Month-by-Month Guide

January

January is the wettest month in Porto, with nearly 6 inches of rain spread across many days. The temperatures are mild by northern European standards but can feel chilly when combined with the dampness and Atlantic winds. You'll find the city quiet with locals outnumbering tourists, and the gray skies are part of the winter package here.

13°C (56°F) High
5°C (41°F) Low
147mm (5.8in) Rainfall
Low Crowds
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February

February sees slightly less rain than January but still qualifies as properly wet. The temperatures tick up just a degree or two, and you might catch some sunny breaks between systems. It's still off-season, so you'll have museums and restaurants largely to yourself, though some smaller attractions might have reduced hours.

15°C (59°F) High
6°C (42°F) Low
112mm (4.4in) Rainfall
Low Crowds
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March

March marks the beginning of spring, with temperatures gradually warming and rainfall starting to ease up a bit. You'll see more sunny days mixed in with the rainy ones, and the city starts to feel more alive as locals spend more time outdoors. It's still shoulder season, so you're getting decent value without the summer crowds.

17°C (63°F) High
8°C (46°F) Low
97mm (3.8in) Rainfall
Medium Crowds
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April

April brings proper spring weather with noticeably warmer days, though rainfall actually ticks back up slightly. The Douro Valley starts to green up beautifully, and outdoor cafés begin filling up with people taking advantage of the improving weather. You'll want layers since mornings can still be cool while afternoons warm up nicely.

18°C (64°F) High
9°C (48°F) Low
117mm (4.6in) Rainfall
Medium Crowds
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May

May is when Porto really starts to shine—temperatures reach comfortable levels, rainfall drops significantly, and the city hits that sweet spot before peak summer tourism. The longer days mean more time to explore, and the weather is generally reliable enough to plan outdoor activities. This is one of the most pleasant months to visit, honestly.

20°C (68°F) High
11°C (52°F) Low
89mm (3.5in) Rainfall
Medium Crowds
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June

June transitions into summer with warm, increasingly dry weather and the famous São João festival on the 23rd bringing the city to life. Rainfall becomes minimal, and you'll see locals and visitors alike taking full advantage of the riverside and beaches. It's getting busier with tourists but hasn't quite hit peak summer crowds yet.

23°C (74°F) High
14°C (58°F) Low
41mm (1.6in) Rainfall
High Crowds
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July

July is peak summer with the warmest, driest weather of the year—you'll barely see any rain at all. The Atlantic breeze keeps temperatures from getting oppressive, though afternoons can feel warm when you're climbing Porto's steep hills. This is high season, so expect crowds at major attractions and higher prices across the board.

25°C (77°F) High
16°C (60°F) Low
20mm (0.8in) Rainfall
High Crowds
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August

August matches July for heat and sunshine, with similarly minimal rainfall and peak tourist numbers. Many locals actually leave the city for their own holidays, which can make some neighborhoods feel quieter despite the tourist presence. The beaches and riverside areas are at their busiest, and you'll want to book accommodations well in advance.

26°C (78°F) High
16°C (60°F) Low
33mm (1.3in) Rainfall
High Crowds
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September

September is arguably one of the best months to visit—temperatures remain warm but the peak crowds start to thin out, and you'll still see mostly dry weather. The ocean is at its warmest after a summer of heating up, and the light takes on that beautiful early autumn quality. Prices begin to drop as high season winds down.

24°C (75°F) High
14°C (58°F) Low
71mm (2.8in) Rainfall
Medium Crowds
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October

October sees a noticeable increase in rainfall as autumn properly sets in, though temperatures remain quite mild and pleasant for exploring. The changing season brings harvest time in the Douro Valley, making it ideal for wine tourism. You'll need to pack for variable weather, but the thinning crowds and lower prices make it attractive for many visitors.

21°C (69°F) High
12°C (53°F) Low
157mm (6.2in) Rainfall
Medium Crowds
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November

November is when Porto's wet season really kicks in, with the second-highest rainfall of the year. The days get noticeably shorter and the temperatures drop to more jacket-worthy levels. Tourism slows considerably, which means better deals and a more local experience, though you'll definitely need to embrace the rain as part of the package.

17°C (62°F) High
9°C (48°F) Low
173mm (6.8in) Rainfall
Low Crowds
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December

December is the wettest month in Porto, with over 7 inches of rain typically falling throughout the month. The holiday season brings festive decorations and a cozy atmosphere to the city, though the weather keeps most activities indoors. Temperatures are mild compared to northern Europe, but the combination of rain and wind off the Atlantic can feel quite raw.

14°C (57°F) High
7°C (44°F) Low
180mm (7.1in) Rainfall
Low Crowds
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