Lisbon · Portugal
September
The shoulder sweet spot: still beach-warm, noticeably cheaper, crowds thinning.
Best match
#6 of 12 months
There are better months for Lisbon — see the full ranking below.
See when to go instead →Climate
High
24.6°C
Low
17.3°C
Rain
30mm
Sun
11.1hrs/day
30-year climate normals · Open Meteo ERA5
How September scores in Lisbon
Weather
Outstanding
Value
Above average
Crowds
Above average
Events
Very good
Atmosphere
Excellent
What you gain in September
- ↑Sea still at 20°C — beaches entirely viable, far less packed than August
- ↑Prices drop 20–30% from peak: the value window reopens
- ↑Lisbon locals return — the city feels more lived-in and authentic again
What you sacrifice
- ↓First weekend rains can arrive late September — pack a light layer
- ↓Still busy at major sites, especially early in the month
- ↓Flight prices remain elevated through most of September
How September compares to June (best month)
| Factor | September | June ★ |
|---|---|---|
| Weather | 9 | 9 |
| Value | 5 | 4 |
| Crowds | 5 | 4 |
September in other destinations
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Lisbon, not across destinations. Methodology →