September · Greece
Best time to visit Symi in September Weather, crowds & prices
Weather in Symi in September
Average temperature 27°C, 19 mm of rain, about 26 days with 6+ hours of sunshine and 63% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
10.0/10
Ranked #4 of 12 months
- Avg temp
- 27°C
- Rainfall
- 19 mm
- Humidity
- 63%
- Days with 6h+ sun
- 26
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Symi scores 10.0/10 for beach and coastal travel - an above-average month (#4 of 12). Expect around 27°C, 19 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.
Symi's neoclassical harbour houses climb a hillside above one of the Aegean's prettiest ports.
September ranks 4th of 12 for Symi — one of the best windows
September averages 27°C (81°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 19 mm of rain — occasional showers rather than washed-out days — alongside about 26 days with 6+ hours of sunshine and 12.2 daylight hours.
A 10/10 puts this among the year's best months in Symi (4th of 12); only June scores higher, at 10/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Figure on peak pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Symi in September?
- In September, Symi averages 27°C, 19 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 10.0/10.
- Is September a good time to visit Symi?
- September earns a 10.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Symi in September?
- Expect about 19 mm of rain in September. Average humidity is 63% and there are about 26 days with 6+ hours of sunshine.
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