Lisbon in September: weather, sea & travel advice
Lisbon in September is especially suited to city breaks, active holidays and hiking, family holidays and beach holidays. Days are around 22 °C (mild), and the sea is about 19 °C. With about 5 rainy days it is dry.
Lisbon · SeptemberPhoto: Dale Cruse - 10M views from San Francisco, CA, USA · CC BY 4.0Climate facts
- Day
- 22 °C
- Night
- 18 °C
- Sea
- 19 °C
- Rainy days
- 5 rainy days
- Sun
- 7 h/day
- Humidity
- 81 %
Suitability by travel type
BeachGood72/100
City breakExcellent99/100
ActiveExcellent88/100
FamilyGood73/100
In favour
- Little rain (about 5 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 September
Frequently asked questions
How warm is Lisbon in September?
Daytime highs average around 22 °C, with nights around 18 °C.
Can you swim in Lisbon in September?
The sea is about 19 °C (refreshing).
Does it rain a lot in Lisbon in September?
On the long-term average, expect about 5 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.