Lisbon weather at a glance
Hottest
August · 29°C
Coldest
January · 8°C
Wettest
December · 113 mm
Best season
May, June, September, October
When is the best time to visit Lisbon
Lisbon has a mediterranean (csa) climate. In summer (Jun–Aug) the average high is around 27°C, while in winter (Dec–Feb) it sits near 15°C by day and 8°C at night. The hottest month is August (29°C) and the coldest is January (8°C).
The best time to visit is May, June, September, October, when conditions are most comfortable for sightseeing and walking around. December, January can be less comfortable — keep that in mind when planning.
Lisbon temperatures & rainfall by month
Long-term monthly averages (climate normals).
| Month | High | Low | Daily range | Rain |
|---|---|---|---|---|
| Jan | 15° | 8° | 110 mm | |
| Feb | 16° | 8° | 88 mm | |
| Mar | 18° | 10° | 68 mm | |
| Apr | 19° | 11° | 62 mm | |
| May | 22° | 13° | 48 mm | |
| Jun● | 25° | 16° | 18 mm | |
| Jul | 28° | 18° | 5 mm | |
| Aug | 29° | 18° | 7 mm | |
| Sep | 27° | 17° | 35 mm | |
| Oct | 22° | 14° | 92 mm | |
| Nov | 18° | 11° | 110 mm | |
| Dec | 15° | 9° | 113 mm |
Seasons in Lisbon
Spring
20° / 11°
mild
Rain: ~59 mm/mo
Summer
27° / 17°
warm
Rain: ~10 mm/mo
Autumn
22° / 14°
mild
Rain: ~79 mm/mo
Winter
15° / 8°
cool
Rain: ~104 mm/mo
When to visit Lisbon
✓ Best months
May, June, September, October
~ Less comfortable
December, January
What to pack
- A warm jacket and layers — winter mornings and evenings are chilly.
- A rain jacket or a compact umbrella — rain is frequent.
- Comfortable walking shoes — you'll be on your feet around the centre.