Mykonos Weather in September
“The kind of pleasant weather you build a trip around.”
Roughly 1 rainy days across the month, on average.
Across the Cyclades, Greece, September in Mykonos brings warmth that softens the edges of the day, and the streets adjust their rhythm to match. Averages sit around 26°C (78.8°F) by day and 22.1°C (71.8°F) after dark, with rainfall near 8 mm across roughly 1.2 rainy days — arriving in short, forgettable bursts. Daylight runs about 11.7 hours per day, generous daylight that stretches evening plans, and the season stamps its signature on details like the pelicans of Little Venice.
The numbers translate to comfortable outdoor pacing. Time around southern beach clubs works well through the middle of the day, and shoulder-hour walks near the old port land in that specific window where light is generous and heat is not the story. Restaurants keep their outdoor tables in play through the evening.
Reading across 11 complete years (2015–2025), September in Mykonos has trended warmer in recent seasons, with the last few years pushing daytime highs and rainfall patterns modestly away from the older normals. The 2026 signal so far tracks the recent shape rather than the long-run midpoint — meaning what you see above is weighted to how this month has actually been running, not a smoothed 30-year picture that masks the shift.
For travellers planning around 2026, this profile is the honest baseline. Match the packing list to the numbers — not to the month name — and you avoid the classic mismatch of arriving with the wrong shell, the wrong shoes, or the wrong daylight assumptions. The rest of this page breaks down what to wear, what to do, and how the season tends to run for Mykonos visitors in 2026.
The Chora windmills are five, not one, and the actual sunset spot is Little Venice steps not the windmill hill. Ano Mera village inland is real Mykonian life with Panagia Tourliani monastery and one taverna where locals eat kopanisti spread. Skip Nammos beach club unless bottle service is your vibe; go to Fokos beach for grilled octopus at the only shack there. The wind has a direction language: meltemi from north means south beaches, sirocco from south means north beaches.
What to pack for Mykonos in September
With daytime highs near 26°C, packing leans warm-weather but with a nod to cooler evenings and interior AC.
- light cotton
- shorts
- swimwear
- sandals
- sunhat
What to pack for Mykonos in September
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Where to stay in Mykonos
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Compare hotels on Booking.com→Estimated September trip to Mykonos
Shoulder-season pricing — a balance of price and conditions. Rule-based estimates from a couple based in London — actual prices vary.
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Things worth doing
Best-fit activities include boat excursions to Delos, sunset cocktails, spa retreats, and beach-club afternoons — a mix suited to the month's daylight and weather pattern.
September vs. the rest of the year
How this month compares in Mykonos. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Mykonos
While September has its own character in Mykonos, the data-backed best months to visit Mykonos are May, June, July, August. These months combine the most favourable temperatures, rainfall, and sunshine across an 11-year climate record (2015–2025).
See the full best-time-to-visit guide for MykonosOther places with a similar climate right now
Read more about Mykonos
11 complete years of Santorini climate data (2015–2025). Best months for sunsets, calderas, wineries, and honeymoons — plus honest shoulder-season advice.
Santorini vs Mykonos — a data-first comparison. Weather, crowds, romance vs nightlife. Which Greek island is right for your trip?
Mykonos in September — FAQ
Q01Should I visit Mykonos in September?
Should I visit Mykonos in September?
Yes — this is one of the best months of the year to visit. In September, Mykonos averages a high of 26°C (79°F) and a low of 22°C (72°F), with 8mm of rainfall across roughly 1 rainy days. Mid-June meltemi winds ease briefly before July peak; Panagia Tourliani feast on July 23 fills Ano Mera village with actual Cycladic tradition tourists miss.
Q02What temperatures should I expect in Mykonos during September?
What temperatures should I expect in Mykonos during September?
The average high temperature in Mykonos during September is 26°C (79°F), with an average low of 22°C (72°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03Is September a rainy month in Mykonos?
Is September a rainy month in Mykonos?
Mykonos averages approximately 1 rainy days in September, with a total monthly rainfall of about 8mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04How should I dress for Mykonos in September?
How should I dress for Mykonos in September?
For Mykonos in September, pack sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. A weighted hat clip or chin strap: meltemi will send unsecured hats into the Aegean permanently.
Q05Is September a busy travel month for Mykonos?
Is September a busy travel month for Mykonos?
Tourist crowds in Mykonos during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely. The Chora windmills are five, not one, and the actual sunset spot is Little Venice steps not the windmill hill. Ano Mera village inland is real Mykonian life with Panagia Tourliani monastery and one taverna where locals eat kopanisti spread. Skip Nammos beach club unless bottle service is your vibe; go to Fokos beach for grilled octopus at the only shack there. The wind has a direction language: meltemi from north means south beaches, sirocco from south means north beaches.