The September Window: A 7-Day Cyclades Catamaran Route for the Famous Islands, Minus August

September is the month the Cyclades finally make sense. The meltemi that hammers the islands in August softens week by week, the sea is at its warmest after a long summer, and the famous quays at Mykonos and Naxos have room to breathe again. If you have been put off doing the headline islands by August’s wind and crowds, cyclades sailing september is the answer — the same islands, sanely.

Below is a complete seven-day route out of Lavrion, looping Syros, Mykonos, Paros, Naxos and Serifos, built for a catamaran and timed for the fading wind. It keeps the days short enough to enjoy and the anchorages varied, mixing the celebrity islands with quieter stops so the week never feels like a checklist.

Why Cyclades sailing September trips beat August

Three things change in your favour. First, the wind: the meltemi typically peaks in July and August and eases through September, so the brutal 30-knot afternoons that pin crews into harbour become the exception rather than the rule. Second, the sea is at its warmest of the year, around 24–25°C, so every swim stop pays off. Third, the human factor — by the second week of September the families have gone home, the quays at Mykonos, Paros and Naxos loosen up, and you can often get a town berth you would never find in August.

The week still needs respect for the wind, because the meltemi does not vanish overnight; early September can still serve up a fresh northerly. The route below is shaped to use that wind on your beam where possible and to keep good shelter within reach. Plan any Cyclades sailing September itinerary around this single fact and the rest falls into place. For the underlying pattern, our season-long guide to sailing Greece into October shows how the window keeps improving as autumn approaches.

Day 1–2: Lavrion to Syros

Start at Lavrion rather than Athens’ busy Alimos — it is closer to the Cyclades, cheaper to base from, and saves you a long upwind slog. After the boat checkout, make the roughly 55 NM passage to Syros, ideally splitting it with a lunch stop at Kythnos’s Kolona sandbar if the timing works. Syros is the islands’ administrative capital and gloriously un-touristy: its main town, Ermoupoli, is a grand 19th-century port of marble squares, neoclassical mansions and a year-round Greek life that the party islands lack.

Berth on the town quay at Ermoupoli, walk up to the Vaporia district for the blue-domed Agios Nikolaos church and the faded grandeur of the captains’ houses, and eat in a proper local taverna where the menu is not translated into five languages. It is the perfect first night: a real Greek town to set the tone before the famous islands.

Day 3: Syros to Mykonos

A short, satisfying hop of around 20 NM takes you east to Mykonos, often a fast beam reach in the morning breeze before the wind builds. Time your arrival for early afternoon so you can settle the boat before the evening. The new port and marina at Tourlos handle visiting yachts, while Ornos bay on the south coast gives a calmer anchorage with beach clubs ashore and a quick taxi into town.

September Mykonos is the version worth seeing: the whitewashed lanes and windmills without the August crush, sunset at Little Venice without a forty-minute wait for a table. Do the town in the cool of evening, have your night out if you want one, and you can still be away early the next morning. Our roundup of the best things to do in Mykonos helps you pick the few stops that justify the hype and skip the rest.

Day 4: Mykonos to Paros

Run south-west about 25 NM to Paros, one of the most balanced islands in the chain. The fishing port of Naoussa in the north is the highlight: a working harbour of caiques and blue-tabled tavernas wrapped around a half-sunken Venetian fort, with sandy anchorages like Kolymbithres just across the bay. Anchor off, swim among the sculpted granite rocks, then take the tender in for dinner on the quay.

If the wind is in the north, the bay gives good shelter; if it has any west in it, the main harbour at Parikia on the west coast is the better overnight. Either way, Paros offers the easiest balance of the week — good swimming, a lovely town, and enough going on without the intensity of Mykonos. It is also a natural springboard for the short hop to Naxos next door.

Day 5–6: Naxos and a quiet finish at Serifos

Cross the channel — barely 10 NM — to Naxos, the largest and greenest of the Cyclades. Berth at the town quay beneath the Portara, the giant marble gateway on the islet by the harbour, and walk the Venetian kastro lanes at dusk. Naxos has the best food of the route: local graviera cheese, citron liqueur, potatoes the islanders are famously proud of, and tavernas that still cook for Greeks. Spend the night here, provision, and enjoy a slower day.

For the final leg, swing west toward Serifos to start closing the loop back to Lavrion, about 35 NM and a fine downwind run if the northerly cooperates. Serifos is the antidote to Mykonos: a dramatic Chora of white cubes spilling down a rocky hill above the port of Livadi, sandy bays like Livadakia for a last swim, and a pace that has barely changed in decades. Berth in Livadi or anchor off the beach, take the bus or the steep walk up to the Chora at golden hour, and eat at a taverna where the revithada chickpea stew and local thyme honey are the point rather than the view. It is the kind of quiet island a September route should end on, and it sets up an easy hop back to base.

If you have an extra day or the wind keeps you west, Sifnos lies just south and is one of the genuine food islands of the Cyclades, while Kythnos on the way back to Lavrion hides the double-sided Kolona sandbar, where you can anchor on either side depending on the breeze. Either makes a worthwhile detour that keeps the final days unhurried rather than a dash for the marina.

Day 7: Serifos back to Lavrion

The closing passage from Serifos to Lavrion is around 35–40 NM, usually a comfortable reach or run with the fading meltemi behind you. Aim to be back at base the evening before checkout if your charter requires it, or break the leg with a final lunch stop at Kythnos’s Kolona again on the way through. It is a fitting end — one last Cyclades swim before the marina.

This loop is deliberately flexible. If early-September wind is up, lean on the more sheltered legs and spend an extra night at Syros or Paros; if it is calm, add a detour to Delos and Rineia from Mykonos, or to quiet Sifnos before Serifos. For a different starting point and angle on the same islands, our 7-day Cyclades itinerary from Mykonos is a useful companion when you are sketching variations.

Provisioning and pacing your Cyclades sailing September week

Do your main shop at Lavrion before departure, where there are full supermarkets near the marina, and top up fresh at Ermoupoli on Syros and at Naxos, both proper towns with real markets. Keep legs to a sensible length — nothing here is over 55 NM and most are 20–35 — so you sail in the gentler morning and are anchored or berthed before the afternoon breeze peaks. Budget for town-quay fees at Mykonos and Naxos and a couple of beach-club lunches, and you will have a week that touches the famous islands without ever feeling rushed or overrun.

One more habit makes the difference between a good week and a great one: stay flexible on the order of the islands. The route above runs anticlockwise to use the fading meltemi on the beam, but if a fresh northerly fills in early you can flip a leg, sit out a windy afternoon in Syros or Naxos, and pick the islands back up the next morning. That adaptability is the real luxury of a private boat, and it is what lets a September crew take the celebrity islands on their own terms rather than the wind’s.

Frequently Asked Questions

Is September a good time to sail the Cyclades?

It is arguably the best. The meltemi eases through the month, the sea is at its warmest of the year at 24–25°C, and the crowds thin out after the first week, freeing up the famous quays. Early September can still bring a fresh northerly, so a flexible, shelter-aware route is wise.

Where should you sail in the Cyclades in September?

A classic loop from Lavrion takes in Syros for real Greek-town character, Mykonos for the headline island minus the August crush, Paros and Naxos for swimming, food and pretty harbours, and quieter Serifos to finish. It mixes the celebrity islands with calmer stops over a week.

Where is the best base for a Cyclades catamaran charter?

Lavrion is the most practical jumping-off point for the Cyclades — closer to the islands than Athens’ Alimos marina, cheaper, and it spares you a long upwind passage at the start. It has full provisioning nearby and good road access from Athens airport.

How long are the sailing days on this route?

Comfortable. The longest single leg, Lavrion to Syros, is about 55 NM and best split with a lunch stop; most others run 10–35 NM. That lets you sail in the gentler morning wind and be settled in an anchorage or on the quay before the afternoon breeze builds.

Is the meltemi still a problem in September?

It eases steadily through the month but does not disappear, especially in the first week or two, when a fresh northerly is still possible. Plan legs to use the wind on the beam where you can, keep good shelter within reach, and watch the forecast — by late September conditions are usually much gentler.

Ready to do the famous Cyclades the right way? Browse September boats and dates on our Greece catamaran destinations page and build a Lavrion loop around the islands while the best weeks are still open.