Lisbon weather in August
“Reliably warm, dry, and generous with light.”
Roughly 1 rainy days across the month, on average.
August is peak summer in Lisbon, delivering hot, dry, and gloriously sunny weather. Daytime temperatures average 28.3°C (83°F), while nights cool to a pleasant 18.5°C (65°F). Rain is virtually non-existent with only 1.5mm of precipitation expected across just 0.6 rainy days. You'll enjoy an impressive 12.4 hours of sunshine daily, making it ideal for beach trips and outdoor exploration. The Atlantic breeze keeps humidity manageable despite the heat.
August is festival season in Lisbon, with neighborhood street parties, live music, and traditional celebrations throughout the city. The atmosphere is festive and vibrant, though this is undoubtedly peak tourist season. Expect crowded attractions, higher accommodation prices, and busy restaurants, especially in the historic center and along the waterfront.
For 2026, August remains an excellent choice if you can handle crowds and heat. Book accommodations well in advance and visit major sites early in the day. The trade-off for peak season is guaranteed sunshine and warm swimming conditions at nearby beaches. Consider visiting nearby towns like Cascais or Sintra as day trips to escape the city crowds.
What to pack for Lisbon in August
- •Breathable cotton or linen, and a broad-brimmed hat
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Lisbon in August
- →Quick-dry travel shirtAmazon · shop this
- →UPF sun hatAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
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Where to stay in Lisbon
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in Lisbon across trusted platforms.
Compare hotels on Booking.com→Things worth doing
Beach days at Costa da Caparica, sunset river cruises on the Tagus, explore hilltop neighborhoods like Alfama and Bairro Alto, visit nearby Sintra's palaces as a day trip.
August vs. the rest of the year
How this month compares in Lisbon. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Lisbon
August is one of the best months to visit Lisbon — alongside May, June, July. Ten-year climate data confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for LisbonOther places with a similar climate right now
Lisbon in August — FAQ
Q01Is August a good time to visit Lisbon?
Is August a good time to visit Lisbon?
Yes — this is one of the best months of the year to visit. In August, Lisbon averages a high of 28°C (83°F) and a low of 19°C (65°F), with 2mm of rainfall across roughly 1 rainy days.
Q02What is the average temperature in Lisbon in August?
What is the average temperature in Lisbon in August?
The average high temperature in Lisbon during August is 28°C (83°F), with an average low of 19°C (65°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Lisbon have in August?
How many rainy days does Lisbon have in August?
Lisbon averages approximately 1 rainy days in August, with a total monthly rainfall of about 2mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Lisbon in August?
What should I pack for Lisbon in August?
For Lisbon in August, pack light, breathable clothing (cotton or linen), sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Lisbon in August?
How crowded is Lisbon in August?
Tourist crowds in Lisbon during August are typically high — this is peak season, expect crowds and higher prices. Consider this when planning accommodation — prices track crowd levels closely.