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The case for Mykonos in September is straightforward: the sea is warmer, the air is more comfortable, the wind is calmer, the streets are more navigable, and the prices are lower than August. Every meaningful metric favours September over peak summer. The only trade-off is a slight reduction in the sheer intensity of the social scene — which is, for many visitors, not a trade-off at all but another point in September's favour.
What follows is everything you need to know to plan and enjoy a September trip to Mykonos.
For the full Mykonos guide, see the Mykonos travel guide. For context on how September fits into the Greek travel calendar, see visiting Greece in September.
Mykonos September Weather: What to Expect
Temperature
Average daytime highs in September sit at 24–26°C — warm enough for genuine beach and pool days at any time of day, but without the 30–33°C peaks that make August afternoons in Mykonos Town genuinely uncomfortable. The heat is pleasant rather than oppressive. Walking the narrow lanes of the Chora (Mykonos Town), visiting the windmills, or taking a boat to Delos are all comfortable activities throughout the day rather than activities that need to be front-loaded into the cool morning hours.
Evenings in September cool to 19–22°C — warm enough for outdoor dining in a t-shirt but occasionally benefiting from a light layer later in the evening. The typical September evening rhythm: long dinner outdoors until midnight, warm enough to walk home without a jacket.
Early September (1–15 September): Near-indistinguishable from late August in terms of temperature and conditions. 25–26°C during the day, 21–22°C at night, essentially no rain. This is peak September Mykonos.
Late September (16–30 September): Temperatures begin their gradual autumn descent. Still 23–25°C during the day, 18–20°C at night. Very occasional light rain possible in the final days. Still absolutely a summer visit.
The Meltemi Wind in September
The Meltemi — the strong, dry northerly that defines Aegean summer — blows most powerfully in July and August. By September, it has calmed significantly: from force 5–6 in August to force 2–3 by mid-September on most days. The practical effect on your holiday:
- Beach days on north-facing beaches (Ftelia, Panormos) become more consistently enjoyable
- Boat trips are smoother and less likely to be cancelled
- Outdoor dining is more comfortable without the gusts
- Swimming conditions are calmer across the island
Some Meltemi breeze remains in early September and is genuinely pleasant — it keeps temperatures comfortable without making them cold. By late September the wind is occasional rather than constant.
Sea Temperature
The Aegean around Mykonos reaches 23–24°C in September — the warmest sea available anywhere in the Greek calendar for this island. This is the result of a full summer of solar heating retained in the water while the air temperature has already begun its gradual autumn decline. September swimming is warmer than July swimming.
Sunshine and Rainfall
September delivers approximately 11 hours of sunshine daily through most of the month — roughly equivalent to July and August — with the sun setting around 7:30pm in early September and 7pm by month end. Cloudless days dominate the first three weeks. Rainfall is minimal: average of 5–15mm for the entire month, concentrated in the final days. Losing a day to rain in September is possible but unusual.
What to Do in Mykonos in September
Beaches
September is the best beach month. The sea is warm, the Meltemi has calmed, and the beach clubs still have their full summer staff and operations. The island's major beaches — Psarou, Platis Gialos, Ornos, Super Paradise, Paradise — all remain fully operational.
Best September beaches:
Platis Gialos: The most family-friendly of the main beaches, with calm, sheltered water and the full beach club setup (Yatin, Bill and Coo beach). In September, the children and families who dominate August give way to a more adult, relaxed crowd.
Super Paradise: Still operating at something approaching peak season energy in early September, with a specifically LGBT-friendly inclusive culture. The September crowd is less about seeing and being seen and more about actually enjoying the beach. The sea here is excellent.
Panormos (north coast): The most beautiful of the remote northern beaches — a long arc of sandy beach with the bay's perfect proportions. August wind makes it occasionally uncomfortable; September's calmer Meltemi makes it entirely enjoyable. Accessible by ATV or car from the Ano Mera direction.
Agios Ioannis: The beach overlooking the bay where the fictional Zorba danced, with Delos visible on the horizon. Calm, relatively quiet in September, with a few good tavernas on the sand. The sunset from here in September light is extraordinary.
Ftelia: The kite and windsurfing beach on the north coast, where the Meltemi (still present in early September) creates reliable conditions for wind sports. If you are a kitesurfer or windsurfer, September gives you the conditions without August's excess.
Delos: The Essential Day Trip
The sacred island of Delos — birthplace of Apollo and Artemis, one of the most important archaeological sites in the Aegean — is a 30-minute boat ride from the Old Port of Mykonos. It is a UNESCO World Heritage Site and one of the most extraordinary experiences available from Mykonos, whatever time of year you visit.
In September, the Delos visit is better than at any other point in the season. The August crowds (amplified by cruise ships docking at Mykonos) are reduced. The intense midday heat that makes August Delos visits draining is replaced by pleasant 24°C conditions. The low September sun creates extraordinary light on the marble ruins, the Terrace of the Lions, and the mosaics of the House of Dionysus.
For a guided Delos experience: The Mykonos to Delos guided day trip from GetYourGuide (4 hours, departing from the Old Port) includes the boat crossing and a guided tour of the entire archaeological site with an English-speaking guide — significantly more rewarding than arriving independently without context for what you are looking at.
For a full-day boat trip: The Delos and Rhenia Islands cruise with lunch (6.5 hours) combines the Delos archaeological visit with swimming in the crystal-clear waters around uninhabited Rhenia island and a BBQ lunch on the boat — one of the finest all-round experiences available from Mykonos and particularly magical in September's calm seas and low golden light.
See the full Delos guide.
Mykonos Town (Chora)
Mykonos Town is at its most enjoyable in September. The high-season crowd density — which makes navigating the narrow lanes of the Chora in August an exercise in patience — has reduced to a level where wandering is actually wandering rather than shuffling. The windmills catch the early morning light without a queue of smartphones in front of them. Little Venice's coloured houses reflected in the water are accessible for the leisurely photography session that August made difficult.
The best September Chora approach: early morning (8–10am) for photography and quiet wandering, before the day-trippers arrive from the cruise ships; mid-morning for coffee in Matogianni; lunchtime for a good taverna (book ahead for the best; even September requires reservations at the most popular); afternoon beach; dinner from 9pm onward.
For an oriented introduction to the Old Town: The Mykonos walking tour (2 hours, with a local guide, windmills, Little Venice, Paraportiani church, and the labyrinthine interior lanes) is the most efficient way to understand the town's geography and history before exploring independently.
The Closing Parties
September's defining social events are the end-of-season club closings — legendary events in Mediterranean nightlife that draw visitors who specifically time their trips around them.
Cavo Paradiso (above Paradise Beach): The iconic open-air cliffside club hosts major international DJ sets through September, culminating in its legendary closing party — typically in the third week of September. The combination of the cliff setting, the sea below, and a final-night atmosphere creates something that the mid-season events cannot replicate.
Paradise Beach Club (Paradise Beach): The parties continue in full force through early September, with the beach below and the club above running simultaneously. The September atmosphere — energetic but with the particular quality of knowing the season is ending — is specific and powerful.
VOID (Mykonos Town): The serious techno and house club runs through September with consistently strong DJ bookings before its own closing event.
If the closing parties are a primary reason for your visit, monitor the venues' official social media accounts (Instagram and Facebook) from July onward — specific dates and lineups are announced late and change. Do not assume a party will be on a specific night without confirming.
Island Exploration: Ano Mera and the Interior
September's comfortable temperatures make the inland village of Ano Mera — Mykonos's only significant inland settlement, home to the Monastery of Panagia Tourliani — worth the 8 km drive from the Chora. The monastery courtyard, the village square, and the authentic tavernas that serve the local community rather than tourists are genuinely different from the beach and nightlife Mykonos.
For a structured exploration of the island beyond the Chora and beaches: The Mykonos full-day sightseeing tour with lunch visits Ano Mera and the Monastery of Panagia Tourliani, a traditional family farm for lunch and wine, the quieter east-coast beaches (Kalo Livadi, Kalafati), and then Mykonos Town for an evening walking tour — covering the island's full range in a single structured day. September's temperatures make the outdoor elements of this tour significantly more comfortable than the August equivalent.
Practical September Mykonos Guide
Accommodation
Book early — preferably by June or July for September dates. The well-regarded sea-view and pool properties (Cavo Tagoo, Bill & Coo, Myconian Collection hotels) fill for early September at rates below August but still well above the Greek average.
September pricing: Expect 15–30% below August rates for equivalent quality. The savings increase through the month — late September (20th onward) is meaningfully cheaper than the first week.
Getting Around
September has full summer transport: buses to all main beaches from the Fabrika terminal, water taxis from the Old Port, rental ATVs and cars, and taxi boats between beaches. The ATV/quad fleet is still operating and is the most enjoyable way to reach the north-coast beaches independently.
Boat trips: September's calmer seas make boat trips to Delos, Rhenia, and around the island more consistently comfortable than August. The Meltemi swell that makes some August crossings rough is largely gone by mid-September. The yacht cruise to Delos and Rhenia is particularly rewarding in September's clear water and calm conditions — the visibility at Rhenia's swimming spots reaches 15–20 metres.
What to Pack for Mykonos in September
Days: Light summer clothing — shorts, t-shirts, sundresses, swimwear. The temperatures through the day are fully summer.
Evenings: A light layer for late evenings — a thin cardigan or light jacket. September evenings are warm but a sea breeze after midnight can feel cool.
Beach: SPF 50 sunscreen (the September UV index remains 7–8, requiring reapplication every 2 hours), quality sunglasses, and a cover-up for walking between beach and town.
Nights out: Mykonos nightlife remains dressy in September. Smart casual is the minimum for the better bars; beach clubs for evening events tend toward the more dressed-up.
What Closes in Late September
By the last week of September, some restaurants and smaller shops begin their seasonal wind-down. The major venues (Nammos, Scorpios, the main clubs) typically run through to their announced closing events. Check specific venues before arrival if a particular restaurant or beach club is important to your plans.
Plan Your Trip
- Trip to Mykonos Greece — the complete Mykonos travel guide
- Delos Guide — the essential Mykonos day trip
- Visiting Greece in September — September across Greece
- Best Time to Travel to Greece — month-by-month comparison
- Santorini vs Mykonos — choosing between the two most famous Cyclades islands
- Paros vs Mykonos — the quieter Cyclades alternative
- How to Plan a Trip to Greece — full planning framework
🏝️ Planning a Mykonos trip? Use our AI Trip Planner to build a personalised September itinerary — or take our quiz to find the right Greek island for your travel style.
Written by
Athens-born engineer · Coordinates a 5-expert Greek team · 50+ years combined field experience
I write every article on this site drawing on real, first-hand expertise — mine and that of four colleagues who live and work across Greece daily: a Peloponnese tour operator, a transfer specialist across Athens, Mykonos & Santorini, a Cretan hotel owner, and a Northern Greece hotel supplier. Nothing here comes from a single visit or desk research.
Informed by 5 Greek experts
Every destination we cover has been visited and vetted by at least one team member — not for a review, but as part of their daily work in Greek tourism.