Mykonos in September
Warm sea, calmer island
By Daan · Last reviewed October 2026
The short answer
September is the best month to visit Mykonos.
September has the warmest sea and calmer days once the August crowds leave.
September in detail
What September actually feels like
- Weather
- 22–26°C
- Warm and sunny, with lighter winds.
- Crowds
- Moderate–High
- Busy early, calmer later.
- Prices
- €€€
- Rates fall after early September.
+The warmest sea.
–Still busy early in the month.
My tip for September
Late September is the calmest time to find a good beach spot.
- Beach
- Swimming
How September compares
Against the other eleven months
1st of 12 overall in Mykonos, 1st for weather, 9th for space, 9th for value. The emptiest month is January; the best value is January.
See all twelve months for MykonosAlso good in September
Weather
Weather in Mykonos in September
In September Mykonos averages a high of 26°C (79°F) and a low of 22°C (72°F), with about 10 mm of rain or snow. The warmest month is July (around 28°C) and the coolest is January (around 15°C); the wettest month is January.
- Average high
- 26°C
- 79°F
- Average low
- 22°C
- 72°F
- Precipitation
- 10 mm
Climate data: National Observatory of Athens monthly bulletins (Mykonos). Temperatures are averages of daily highs and lows.
Quick answers
Mykonos in September: the questions people ask
- Is September a good time to visit Mykonos?
- September is the best month to visit Mykonos. It ranks 1 of 12 months in Mykonos overall (1 for weather, 9 for space, 9 for value). The main upside: The warmest sea. The main downside: Still busy early in the month.
- What is the weather like in Mykonos in September?
- Average highs are around 26°C and lows around 22°C. Expect about 10 mm of rain or snow. Warm and sunny, with lighter winds. For comparison, the warmest month is July (around 28°C) and the coolest is January (around 15°C).
- Is Mykonos crowded in September?
- Crowds are moderate–high. Busy early, calmer later. The quietest month is January.
- How expensive is Mykonos in September?
- Prices are at level 3 of 5 (€€€). Rates fall after early September. The best-value month is January.
- When is the best time to visit Mykonos?
- In the CrowdFreeViews month scores, June is the best month overall (this month). The quietest month is January and the best value is January.