Lisbon in August: weather, sea & travel advice
Lisbon in August is especially suited to city breaks, active holidays and hiking, beach holidays and family holidays. Days are around 23 °C (mild), and the sea is about 19 °C. With about 1 rainy days it is very dry.
Lisbon · AugustPhoto: Dale Cruse - 10M views from San Francisco, CA, USA · CC BY 4.0Climate facts
- Day
- 23 °C
- Night
- 18 °C
- Sea
- 19 °C
- Rainy days
- 1 rainy days
- Sun
- 8 h/day
- Humidity
- 81 %
Suitability by travel type
BeachGood76/100
City breakExcellent99/100
ActiveExcellent89/100
FamilyGood76/100
In favour
- Little rain (about 1 rainy days)
To consider
- Sea still cool (19 °C)
- High humidity (81 %)
All months at a glance
15J
15F
16M
17A
19M
21J
22J
23A
22S
21O
17N
15D
11J
9F
9M
7A
5M
3J
1J
1A
5S
9O
11N
12D
Similar destinations in August
Frequently asked questions
How warm is Lisbon in August?
Daytime highs average around 23 °C, with nights around 18 °C.
Can you swim in Lisbon in August?
The sea is about 19 °C (refreshing).
Does it rain a lot in Lisbon in August?
On the long-term average, expect about 1 rainy days.
When is the best time to visit Lisbon?
The most favourable months are usually the ones highlighted on the overview page. Values are historical averages, not a forecast.