The month in detail
What to expect in September
Autumn in Skiathos is often underrated: 25°C, golden light and declining crowds. An interesting window. Rain risk remains low (19% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if July (9.2/10) remains theoretically better.
September ranks 4 out of 12 months in Skiathos. Compared to August: −2°C daytime, 10 pts more rainy days, −1.5h of sun per day.
This month's conditions
What it's like in September
UV index
6 · high
sunscreen and hat advised
Feels like
muggy at times
18°
Sea
25°C
pleasant for swimming
Daylight
12.2h of daylight
Air quality
good
AQI 35
Compare
Is September the right month?
The best month in Skiathos is July (9.2/10), 0.9 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Skiathos
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Skiathos
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.
Country · Greece
🗣️LanguageGreek
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 27°C
❄️Coolest monthJanuary · 13°C
🌧️Rainiest month ⓘJanuary · 30%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Skiathos ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
GreeceTemperate oceanic climate with a 9.2 → 4.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
39.16°N · 23.49°E
Questions
Frequently asked questions
What is the best time to visit Skiathos?
July is the best month with 27.0°C highs, 25.0°C lows, 9.4h of sunshine and 7.0% rainy days. The months of July & August offer comparable conditions.
How many hours of sunshine does Skiathos get in July?
Skiathos averages 9.4 sunshine hours per day in July. It is the sunniest month with a climate score of 8.9/10.
What is the rainiest month in Skiathos?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Skiathos in July?
In July, overnight lows reach 25.0°C, while afternoon highs average 27.0°C.
Is Skiathos good in winter?
In winter (December-February), Skiathos scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 8.9/10.
When should you avoid Skiathos?
January is the most difficult month to visit Skiathos, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Skiathos in September?
In September, the sea averages 25°C in Skiathos: pleasant for swimming. Swimming is pleasant without a wetsuit.
Do you need sun protection in Skiathos in September?
The average UV index reaches 6 in September in Skiathos (high), with about 12.2h of daylight. Sunscreen and hat advised.