The best time of year for a yoga retreat in Greece
The short answer
The best time for a yoga retreat in Greece is May to June and mid-September to October. Days are warm without the peak summer heat, the sea is good for swimming for most of that window, and islands are calmer than in July and August.
If you are planning a retreat for your community, these months give you the most comfortable conditions for outdoor practice, walking and time by the sea. The right week then depends on your setting (island, mainland or sail boats), your guests' holidays and a few Greek dates worth planning around.
Below we go through the year month by month, with figures from long-term climate averages, so you can choose with confidence.
Greece through the year at a glance
Average daytime highs, sea temperature and rainfall, based on long-term climate averages. Individual years vary, especially in spring and autumn.
Month | Athens high (°C / °F) | Cyclades high (°C / °F) | Sea, Cyclades (°C / °F) | For a retreat |
April | 20 / 68 | 19 / 66 | 16 / 61 | Mild and green. Sea is fresh for most swimmers. |
May | 25 / 77 | 23 / 73 | 18.5 / 65 | Very good. Warm days, quiet islands, cool sea early in the month. |
June | 30 / 86 | 27.5 / 82 | 21.5 / 71 | Very good. Long days, swimmable sea, busier towards the end. |
July | 33 / 92 | 30 / 86 | 23.5 / 74 | Hot and very busy. Strongest winds in the Aegean. |
August | 33.5 / 92 | 30 / 86 | 24 / 75 | Hottest and busiest. Greek holiday peak around 15 August. |
September | 29 / 84 | 27 / 81 | 23.5 / 74 | Very good from mid-month. Warm sea, fewer visitors. |
October | 24 / 75 | 23 / 73 | 21.5 / 71 | Very good. Soft light, warm sea, some rain later in the month. |
November | 18 / 64 | 19 / 66 | 19 / 66 | Mainland and city retreats. Many island businesses close. |
December to March | 13 to 16 / 55 to 61 | 14 to 16 / 57 to 61 | 15.5 to 17 / 60 to 63 | Mainland and mountain retreats. Rainy spells and wind. |
Spring: April to June
Spring is one of the two strongest seasons for a retreat in Greece. May and June in particular offer warm, dry days and long evenings, before the heat and crowds of high summer.
April is mild, with Athens averaging around 20 °C (68 °F). The countryside is at its greenest and wildflowers cover the hillsides, which makes it a lovely month for walking retreats and for the mainland. The sea is still cool, at about 16 °C (61 °F), so plan swimming as optional.
May is often our first recommendation. Athens averages 25 °C (77 °F), the islands sit in the low twenties, and rain is rare. Morning and sunset practice outdoors is comfortable, and islands are still quiet. The sea warms through the month, from brisk to pleasant for confident swimmers.
June brings the longest days of the year and a sea that most guests enjoy, at around 21 to 22 °C (70 to 72 °F). Athens reaches about 30 °C (86 °F), so midday is for shade, rest and the water, with practice early and late. Visitor numbers climb towards the end of the month.
For sailing retreats, best time of year for a yoga retreat in Greece, May, June and September are generally the calmer months in the Aegean, with lighter winds than July and August.
Summer: July and August
July and August are the hottest and busiest months in Greece, and the hardest to plan a retreat around. They work for some groups, but they ask more of your schedule and your guests.
Heat. Athens averages a daytime high of about 33 °C (92 °F) in both months, and heatwaves above 40 °C (104 °F) have hit Greece in recent summers. In July 2025, the Acropolis closed from 13:00 to 17:00 on several days to protect visitors. If you include Athens or ancient sites, schedule them for the early morning.
Wind. The meltemi, a dry northerly wind, blows across the Aegean in summer and is strongest in July and August. It can reach force 6 to 7 on the Beaufort scale and last several days. On land it takes the edge off the heat. At sea it brings rougher water and can change sailing plans, especially in the Cyclades. The Ionian Sea in western Greece is largely outside the meltemi.
Crowds and prices. This is peak season for both international and Greek travellers. Popular islands, ferries and venues are at their fullest, and the weeks around the 15 August holiday are the busiest of the year for Greek families.
If summer is the only time your community can travel, consider the mainland mountains, the Ionian islands or a programme built around early mornings, long lunches in the shade and evening practice.
Autumn: September to early November
Autumn is the other strong season, and for many retreat leaders the best one. The sea holds its summer warmth, the light softens and the islands relax after August.
September starts warm, with Athens averaging 29 °C (84 °F) and the sea around 23 to 24 °C (73 to 75 °F). The first half can still feel like summer, both in heat and in visitor numbers. From mid-September the pace eases noticeably.
October is a favourite for practice outdoors. Days average around 23 to 24 °C (73 to 75 °F), evenings turn cool, and the sea is still about 21 °C (70 °F). Rain becomes more likely as the month goes on, usually as short showers rather than long grey spells.
Early November can still be pleasant, especially in the south, though rainfall rises to around 75 mm in Athens and many island hotels, restaurants and ferry routes close or reduce their schedules. It suits city, mainland and spa retreats better than island ones.
For sailing retreats, late September and October usually bring lighter winds than summer, with warm water for swimming from the boat. Weather can change faster in late autumn, which is why routes are planned day by day.
Winter: December to March
Winter retreats in Greece are possible, but they belong on the mainland rather than the islands. Athens averages 13 to 16 °C (55 to 61 °F) by day, with rainy spells and around four to six hours of sunshine. Many island businesses close for the season.
What winter offers is quiet. Mountain villages, old stone guesthouses and historic sites such as Delphi see far fewer visitors, and a fireplace after evening practice has its own appeal. This suits slower, inward formats: meditation, writing, breathwork or teacher trainings, where the setting supports the work rather than the beach.
From late March the days lengthen quickly, and April opens the outdoor season again.
Island, mainland or sail boats: how timing changes
The best month also depends on where your retreat takes place.
Retreat setting | Best months | Worth knowing |
Island venue (Cyclades, Saronic, Dodecanese, Crete) | May, June, mid-September, October | Many island venues open from April or May and close by early November. Southern islands such as Crete and Rhodes stay warm later into autumn. |
Athens and the Attica coast | April to June, September to November | Easy to reach from the airport. Avoid long outdoor visits at midday in July and August. |
Mainland mountains (Zagorochoria, Mount Olympus, Delphi and Arachova) | May, June, September, October, plus winter for quieter formats | Cooler than the coast in summer. Good for hiking and walking retreats. |
Peloponnese and Mani | April to June, September, October | Combines coast, villages and ancient sites. Hot inland in high summer. |
Sailing retreat in the Aegean | May, June, late September, October | Lighter winds than July and August, warm sea from June onwards. The route is shaped by the wind each day. |
On a sailing retreat, the venue moves with you. Your group sails together on a flotilla of sail boats and visits three or four islands over the week, with practice on land in a different setting each day, such as a quiet beach, a secluded cove or a pier at sunset. Meditation and workshops take place on deck. Because the wind helps shape the route, spring and autumn give the most freedom to choose where to go.
Greek holidays to plan around in 2027
Greek public holidays affect ferries, prices and how lively an island feels. None of them rule a week out, but they are worth knowing before you choose.
Date in 2027 | Holiday | What it means for a retreat |
30 April to 3 May | Orthodox Easter (Good Friday to Easter Monday) | The most important celebration of the Greek year. Church processions, family gatherings and busy ferries. A memorable week to be in Greece, with some closures on Good Friday and Easter Sunday. |
1 May | Labour Day | Falls on Easter Saturday in 2027. Some shops and services close. |
20 and 21 June | Pentecost and Whit Monday (Agiou Pnevmatos) | A long weekend for Greek families, so islands near Athens fill up. |
15 August | Assumption Day | The peak of the Greek summer holidays. Ferries and islands are at their busiest. |
28 October | Ochi Day | National holiday with parades in towns and villages. Little effect on travel. |
Orthodox Easter follows a different calendar from Western Easter. In 2027 it falls on 2 May, five weeks after Western Easter on 28 March.
For guests travelling from the US, Australia or Northern Europe, it also helps to check your own school holidays and long weekends. They often decide which weeks your community can actually join.
How far ahead to plan
For a retreat in May, June, September or October, start planning 9 to 12 months ahead. These are the weeks most retreat leaders want, and the best venues, boats and crews are booked first.
The longer lead time also helps you. Most leaders need several months to share the retreat with their community, answer questions and fill their places, and guests flying long distance like to book flights early. A simple timeline:
9 to 12 months before: choose your week and setting, and reserve the venue.
6 to 9 months before: open bookings to your community.
2 to 3 months before: confirm numbers, rooms or cabins, and add-ons such as transfers and meals.
2 to 4 weeks before: share final travel details and a packing list with your guests.
Sailing retreats with Go With The Flow: 2027 weeks
We host sailing retreats in the months that suit them best: all of May and June, the last week of September and all of October. Each retreat runs six nights, Saturday to Friday, starting and ending at Alimos Marina, about 40 minutes from Athens International Airport.
Month | Retreat weeks (Saturday to Friday) |
May | 1 to 7, 8 to 14, 15 to 21, 22 to 28, 29 May to 4 June |
June | 5 to 11, 12 to 18, 19 to 25, 26 June to 2 July |
September and October | 25 September to 1 October, 2 to 8, 9 to 15, 16 to 22, 23 to 29, 30 October to 5 November |
You bring your teaching and your people. We take care of the sail boats, crew, hospitality and practical details, and shape the week around your practice. If you would like to explore a week for your community, tell us about your retreat.
Frequently asked questions FOR the best time of year for a yoga retreat in Greece
What is the best month for a yoga retreat in Greece? May and October are the strongest all-round months. Both have warm days, few visitors compared with summer and comfortable conditions for outdoor practice. June and mid to late September are close behind.
Is Greece too hot for a yoga retreat in summer? July and August average around 33 °C (92 °F) in Athens, with heatwaves above 40 °C (104 °F) in recent years. A summer retreat can work with early and late practice and plenty of time in the shade or the sea, or in the cooler mountains.
When is the sea warm enough to swim in Greece? Most guests find the sea comfortable from June to October, when it ranges from about 21 to 24 °C (70 to 75 °F) in the Cyclades. In May it is cooler, around 18 to 19 °C (64 to 66 °F).
When is the meltemi wind strongest? The meltemi blows across the Aegean from roughly June to September and peaks in July and August. May, June and late September to October are usually calmer, which is why many sailing retreats are planned for those months.
When is Greek Easter in 2027? Orthodox Easter Sunday is 2 May 2027, with public holidays on Good Friday (30 April) and Easter Monday (3 May).
Can you hold a yoga retreat in Greece in winter? Yes, on the mainland. Mountain villages and places such as Delphi suit quieter formats like meditation or teacher training. Many island venues close from November to April.
Do you practise yoga on the boat during a sailing retreat? Yoga takes place on land, in settings such as beaches, quiet coves or a pier at sunset. Meditation and workshops happen on deck.
Sources
Athens weather averages, UK Met Office: air temperature, rainfall, sunshine
Cyclades climate, Climates to Travel: Santorini temperatures 1991 to 2020, Mykonos sea temperatures
Cyclades water temperature by month, seatemperature.info: cross-check of sea temperatures
Meltemi and Etesian winds, sailingissues.com and The Meltemi in Greece, Surf Magazin: wind season and strength
Acropolis closure during the July 2025 heatwave, Anadolu Agency
Orthodox Easter in Greece, Office Holidays and Greece public holidays 2027, soon.works: 2027 holiday dates
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