Santorini · Greece
September
The optimal window: summer conditions, 25–30% fewer tourists, prices starting to ease.
Best match
#3 of 12 months
September is one of the best times to visit Santorini.
Climate
High
24.1°C
Low
18.8°C
Rain
18mm
Sun
10.6hrs/day
30-year climate normals · Open Meteo ERA5
How September scores in Santorini
Weather
Outstanding
Value
Above average
Crowds
Above average
Events
Above average
Atmosphere
Excellent
What you gain in September
- ↑Sea still 24°C — the best swimming month without peak-season crowds
- ↑Oia sunset viewpoint: arrive 45 minutes early instead of 2 hours
- ↑Prices beginning to fall: 20–30% below July–August rates
What you sacrifice
- ↓Still expensive relative to spring — shoulder prices lag behind the crowd reduction
- ↓First occasional light rains can arrive late September
- ↓Cruise ships still active — Fira busy on days with large vessels
How September compares to April (best month)
| Factor | September | April ★ |
|---|---|---|
| Weather | 9 | 7 |
| Value | 5 | 8 |
| Crowds | 5 | 8 |
September in other destinations
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Santorini, not across destinations. Methodology →