Porto weather

Our guide to the weather in Porto during August

26

Average high

6

UV Index

21mm

Monthly rainfall

17

Sea temperature

Porto is a vibrant and picturesque coastal city with a rich cultural heritage, perfect for exploring in the summer months; visitors should be prepared for hot weather and plan to take advantage of the many attractions, such as the Ribeira district and the Douro Valley. We've looked at the most up-to-date weather data for Porto, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Porto weather in August.

How warm is it in Porto during August?

August is typically the hottest month in Porto. The temperature hits about 26℃ during the day, falling away to a balmy 17℃ at night.The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Porto during August?

On average, there will be 2 rainy days during the month, amounting to 21.0mm in total. That's much drier than we see in England during August, and therefore not something to be concerned about. You're not likely to see a thunderstorm during your trip.

Is it windy in Porto during August?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in August. With moderate humidity and mild air temperatures, the breeze will have a slight cooling effect.

How warm is the sea in Porto during August?

The water around Porto is around 17℃ during August. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.

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Porto Blog posts

From the UK's most popular travel bloggers

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How To Spend One Day in Porto

21st June 2024 by Inside the Travel Lab

Discover how to make the most of a day in Porto with our carefully crafted itineraries for spending 24 hours in Portugal's vibrant second city....

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How To Spend One Day in Porto – Itinerary & City Guide

21st May 2024 by Mini Adventures

Planning a day trip to Porto during your Portuguese adventure? Uncover the top attractions in this vibrant city with a comprehensive guide to spending 24 hours in Porto! As a UNESCO World Heritage Site, Porto's historic centre offers a compact layout, perfect for a day of exploration. Wander through its charming streets adorned with Baroque, neoclassical, and modernist architecture. Immerse yourself in the relaxed vibe and bustling bars that make Porto a must-visit destination....

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Is Porto Worth Visiting? 13 Reasons to Love Portugal’s Second City

21st May 2024 by Inside the Travel Lab

Nestled among steep streets and terracotta tiles lies a charming Portuguese city waiting to be explored. Discover the essential guide to our top pick in Portugal....

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The Best Souvenirs from Porto

25th April 2024 by Inside the Travel Lab

Discover the perfect souvenirs to bring back from Porto with our reliable Porto souvenir guide. Explore the must-have items to remember your trip by, handpicked by a seasoned traveller....

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Is Porto Worth Visiting? My Honest Opinion After Several Visits

28th January 2024 by PommieTravels

Is Porto worth visiting? That's a question many travellers have been asking as this underrated gem of Portugal starts to gain more attention. While Lisbon may be the capital and the go-to destination for most, Porto has its own unique charm that shouldn't be overlooked. As a seasoned traveller who has visited Porto multiple times, Victoria Brewood of PommieTravels is here to give her honest opinion on whether this vibrant city is worth a visit. So, if you're curious about what Porto has to...

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12 Places in Porto To Find Portuguese Azulejo Tiles

2nd October 2023 by Where Angie Wanders

Azulejo tiles in Porto are a captivating sight and a must-see when exploring the city. This guide will take you to the finest locations where you can admire the exquisite blue and white Porto tiles. It also offers valuable tips to enhance your experience. Discover the 12 places in Porto where Portuguese Azulejo tiles can be found and immerse yourself in their beauty....

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Day Trip from Porto to Foz do Douro

13th April 2023 by Twins that Travel

Prior to our own trip to Porto, I’ll admit that I knew embarrassingly little about the geography of this beautiful city. While I was (at least) aware that it hugged the shores of the magnificent River Douro, I hadn’t quite appreciated its proximity to Portugal’s wild Atlantic Coast. Lying just two miles from the river’s mouth, I soon discovered that Porto has a distinctly coastal side – an area known as Foz do Douro (meaning ‘Mouth of the River Douro’). Just a short bus or tram...

Weather in Porto

Our month-by-month guide to the weather and climate in Porto

13.5

Porto weather in

January
14.3

Porto weather in

February
16.3

Porto weather in

March
17.8

Porto weather in

April
20.8

Porto weather in

May
22.7

Porto weather in

June
25.2

Porto weather in

July
25.8

Porto weather in

August
24.8

Porto weather in

September
21.6

Porto weather in

October
16.2

Porto weather in

November
14.5

Porto weather in

December