September · Greece
Best time to visit Astypalaia in September Weather, crowds & prices
Weather in Astypalaia in September
Average temperature 24°C, 4 mm of rain, about 30 days with 6+ hours of sunshine and 76% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.8/10
Ranked #3 of 12 months
- Avg temp
- 24°C
- Rainfall
- 4 mm
- Humidity
- 76%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Astypalaia scores 9.8/10 for beach and coastal travel - one of the top 12-month picks (#3). Expect around 24°C, 4 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Astypalaia is a butterfly-shaped island of the Dodecanese, with a Venetian castle above its white Chora.
September ranks 3rd of 12 for Astypalaia — one of the best windows
With 24°C (74°F) on average, September delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
At just 4 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 12.4 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Astypalaia at 9.8/10 (3rd of 12), just behind July at 9.8/10.
Pack light clothing, swimwear and real sun protection.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Astypalaia in September?
- In September, Astypalaia averages 24°C, 4 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.8/10.
- Is September a good time to visit Astypalaia?
- September earns a 9.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Astypalaia in September?
- Expect about 4 mm of rain in September. Average humidity is 76% and there are about 30 days with 6+ hours of sunshine.
Curated in Astypalaia
Tickets & experiences
Things to do in Astypalaia
Astypalaia, Greece. Live activities and tours from GetYourGuide, matched to this destination.