Porto Weather in August

Portugal · August climate averages and travel tips

Avg high25°C (77°F)
Avg low16°C (62°F)
Rainfall15 mm (0.6 in)
RatingExcellent 9.8/10

In August, Porto has average highs of 25°C (77°F) and lows of 16°C (62°F). August is summer in Portugal. The month is very dry, with about 15 mm (0.6 in) of rain spread over 3 days, one of the driest months of the year. You get roughly 13.6 hours of daylight and mostly clear skies.

Is August a good time to visit Porto?

Yes — August is one of the best months to visit Porto. The weather rates excellent (9.8/10) on our comfort score.

Visiting Porto in August

August weather

Porto is warm and mostly dry in August. Days reach 25°C, while evenings cool to around 16°C. You'll get plenty of sun, and rain is unusual, so it's a good month for riverside walks and time on Foz's beaches.

The steep streets can feel tiring in the afternoon heat. Save a climb up to the Clérigos Tower for a cooler part of the day, and enjoy the shade inside São Bento station or the Palácio da Bolsa. The Douro's riverfront is lovely later on, when the stone buildings aren't holding as much heat.

Events and local life

August 15 is Assumption Day, a public holiday in Portugal. Some shops and services may close or keep shorter hours, though Porto's main visitor areas still have places to eat and drink.

For families, the long sunny days work well for a slow morning at Foz, followed by an evening stroll through Ribeira. Check local notices for events during your stay; Porto's summer calendar can change from year to year.

Crowds and practical tips

August is peak summer season, so expect busy streets around Ribeira, queues at popular sights, and higher hotel prices than in quieter months such as winter. The weather is usually drier than September, when rain rises, but July is slightly warmer by the daytime high.

For a calmer riverside break, cross the Dom Luís I Bridge on its lower deck to Vila Nova de Gaia, then follow the waterfront away from the busiest cellar entrances. You'll still have Douro views, with more room to pause.

August weather at a glance

Average high25°C (77°F)
Average low16°C (62°F)
Daily mean20°C (69°F)
Rainfall15 mm (0.6 in)
Rainy days (1 mm+)3
Humidity72%
Cloud cover27%
Daylight13.6 hours
Est. sunshine10.9 hours/day
Wind6.3 km/h
vs July1°C warmer than July, with similar rainfall.

What to pack for Porto in August

Porto weather in other months

Jan13°C / 8°C118 mmFairFeb14°C / 8°C97 mmFairMar15°C / 9°C103 mmGoodApr17°C / 11°C93 mmGoodMay20°C / 13°C60 mmExcellentJun22°C / 15°C38 mmExcellentJul24°C / 16°C12 mmExcellentAug25°C / 16°C15 mmExcellentSep24°C / 16°C52 mmExcellentOct21°C / 15°C132 mmGoodNov16°C / 11°C138 mmFairDec14°C / 9°C126 mmFair

← JulyBest time to visit PortoSeptember →

Nearby in August

Where else is good in August? See where to go in August.