Lisbon in August
August in Lisbon brings highs around 84°F (29°C), lows near 66°F and about 1 rainy days. The sun sets around 8:32 pm. The sea is about 66°F (19°C). It's a good month for sightseeing, if not the best.
Photo: Lacobrigo, CC BY-SA 4.0
What August is good for in Lisbon
Each activity rated for August's weather and sea.
Great now Boat toursGreat in August
Great now Sunset cruisesGreat in August
Great now Food toursGreat in August
Great now Day tripsGreat in August
Great now Walking toursGreat in August
Great now Wine toursGreat in August
Great now Bike toursGreat in August
Great now Private toursGreat in August
Cooking classesAny month
August next to July and September
| Month | July | August | September |
|---|---|---|---|
| High | 83°F (28°C) | 84°F (29°C) | 80°F (27°C) |
| Low | 65°F (18°C) | 66°F (19°C) | 64°F (18°C) |
| Rainy days | 1 | 1 | 4 |
| Sea | 65°F | 66°F | 66°F |
| Sunset | 9:01 pm | 8:32 pm | 7:46 pm |
| Daylight | 14 h 37 min | 13 h 42 min | 12 h 28 min |
Averages for Lisbon, 1991–2020; sunrise and sunset on the 15th. Lisbon water temperature by month.
Tours in Lisbon
Best of Lisbon Small-Group Guided Walking TourFrom $22View 
Lisbon City Center Tour - The Unmissable LisbonFrom $3View 
Lisbon TukTuk City Tour | Lisbon Private Sightseeing ToursFrom $16View 
Lisbon Airport Private Transfer to Lisbon HotelsFrom $33View 
Lisbon Small-Group Portuguese Food and Wine TourFrom $76View 
Bike Tours Lisbon - Center of Lisbon to BelémFrom $18View
Tours from Viator. Good Outing may earn a commission when you book, at no cost to you.
Questions
Is August a good time to visit Lisbon?
It's a good month for sightseeing, if not the best. The most comfortable months overall are May, June and September.
How hot is Lisbon in August?
Average highs are about 84°F (29°C) and lows about 66°F (19°C).
Does it rain much in Lisbon in August?
August averages 1 rainy days, against 10 in the wettest month.
How warm is the sea in Lisbon in August?
About 66°F (19°C). Most swimmers find that cool without a wetsuit.
