Amorgos Weather

Amorgos enjoys a classic Mediterranean climate, making it a wonderful destination for much of the year. You can expect hot, dry summers and mild, occasionally wet winters.

The warmest period falls between late June and early September. During this time, temperatures regularly reach the high 20 Celsius, and rainfall is extremely rare. Long, sunny days define the peak summer season, providing excellent conditions for beachgoers and swimmers.

The coolest period spans from December to February, bringing mostly mild daytime temperatures, chilly nights, and the majority of the island’s annual rainfall.

When planning your trip to this dramatically mountainous island, weather plays a huge role. The famous northern summer wind, known as the Meltemi, can significantly affect how hot it feels and how calm the sea is. Spring and autumn bring milder temperatures that are much better suited to exploring the rugged hiking trails.

Below, you will find our comprehensive guide to the Amorgos climate to help you plan, alongside a live weather forecast showing current conditions.

Amorgos Weather at a Glance

The weather on Amorgos changes noticeably with the seasons. The island is hottest in July and August, when daytime temperatures average around 27°C to 28°C. This is the peak time for sunbathing and enjoying the warm Aegean Sea.

The coolest months are January and February, when daytime highs drop to around 13°C. This is also when the island sees its most unsettled weather, with December and January typically being the wettest months.

If you want to avoid rain entirely, June, July, and August are generally the driest months, often recording zero rainfall. These summer months are also the sunniest, boasting up to 13 hours of daily sunshine.

Wind is a defining feature of the Cyclades. On Amorgos, the northerly Meltemi winds are usually strongest during July and August. They help keep the summer heat comfortable but can create choppy seas on the northern and eastern coasts.

The general swimming season runs from late May until October. The sea is warmest in August and September.

Month	Typical conditions	What it is good for
January	Cool, cloudy, chance of rain	Quiet winter escapes
February	Cool, breezy, occasional showers	Photography and local life
March	Mild, sunny spells, some rain	Early spring walks
April	Warming up, spring flowers	Hiking and sightseeing
May	Warm, mostly sunny	Early season beach days
June	Hot, very sunny, dry	Swimming and summer holidays
July	Hot, dry, breezy (Meltemi)	Peak beach holidays
August	Hottest month, dry, windy	Sunbathing and watersports
September	Very warm, calmer winds	Late summer swimming
October	Mild, sea still warm	Autumn hiking and relaxing
November	Cooling down, some rain	Peaceful autumn breaks
December	Cool, wettest month	Experiencing authentic island winter

Amorgos Weather by Month

January

January is one of the coolest and wettest months on Amorgos. Daytime highs usually hover around 13°C, while nights drop down to about 9°C. You can expect several rainy days, though there are still crisp, sunny spells.

The island is very quiet, with most tourist businesses closed for the winter. The sea is too cold for general swimming at roughly 17°C. January is suited to travellers seeking complete isolation or those visiting friends. You will need warm clothing, a waterproof jacket, and sturdy shoes to stay comfortable.

February

February remains firmly in the grip of the Mediterranean winter. Temperatures are very similar to January, with averages of 13°C during the day. It is often quite windy, which makes the air feel cooler than the thermometer suggests.

Rainfall is still common, keeping the island’s hillsides green. It is a slow, peaceful month on Amorgos, with locals preparing for the distant spring. While not ideal for a standard holiday, it offers a glimpse into authentic island life. Bring layers and a windproof jacket if you visit now.

March

March brings the first real hints of spring to the Cyclades. The weather begins to warm up slightly, with daytime temperatures reaching around 15°C. Rainfall starts to decrease, and the days gradually become longer and sunnier.

The island looks beautiful at this time of year, as wildflowers begin to bloom across the mountainsides. It is still too chilly for swimming, but the mild, fresh conditions are wonderful for serious hikers. Tourist facilities slowly begin to wake up towards the end of the month, though the island remains very peaceful.

April

April sees a noticeable shift towards warmer, brighter weather. Average daytime highs reach 17°C, though it often feels warmer in the direct sunshine. Rain becomes much less frequent, and you can expect around 11 hours of daylight.

This is a fantastic month for active visitors. The hiking trails are colourful, the air is clear, and you can explore without the intense summer heat. The sea is still quite bracing at 16°C, so swimming is mostly for the brave. Easter often falls in April, bringing a lovely festive atmosphere to the villages.

May

May is considered by many to be one of the best months to visit Amorgos. The climate is warm but rarely oppressive, with daytime highs averaging a very comfortable 22°C to 24°C. Rain is rare, and the skies are generally clear and blue.

The sea begins to warm up, reaching about 19°C, making quick swims much more inviting. The island is open for business but not yet crowded. It is an excellent time for combining beach days with hiking and sightseeing. The summer Meltemi winds have usually not yet begun in earnest.

June

June marks the beginning of the true summer season. The weather is consistently hot, dry, and very sunny. Average daytime temperatures sit around 26°C, but they can easily climb higher. Rainfall is practically non-existent.

The Aegean Sea reaches a lovely 22°C, making it perfect for long swims and boat trips. The famous Meltemi wind may start to blow towards the end of the month, providing a refreshing breeze. June is ideal for a classic Greek island holiday, offering long beach days and warm, pleasant evenings in the local tavernas.

July

July is peak summer on Amorgos. You can expect hot, dry weather with daytime temperatures regularly hitting 27°C or more. There are up to 14 hours of sunshine a day, and rain is extremely unlikely.

This is also when the Meltemi wind usually begins to blow strongly from the north. This wind is actually a blessing, as it stops the island from feeling uncomfortably hot. However, it can make the sea choppy on the exposed northern coasts. July is busy, vibrant, and perfect for dedicated sunseekers.

August

August is typically the hottest month of the year, with average highs around 28°C. The sun is intense, and the island is bustling with visitors. The sea is at its absolute warmest, averaging a delightful 24°C.

Like July, August is heavily influenced by the Meltemi wind. Some days can be very breezy, which keeps the heat manageable but means you might need to seek out south-facing beaches for calm water. It is a fantastic month for swimming and relaxing, but early morning is the only sensible time for difficult hikes.

September

September is a beautiful month as the intense heat of peak summer begins to soften. Daytime temperatures remain very warm, averaging around 25°C, but the evenings start to feel a little fresher.

The Meltemi winds usually ease off, resulting in calmer seas and a more relaxed atmosphere. The sea retains all its summer heat, staying at around 23°C to 24°C, which makes September arguably the best month for swimming. It is an excellent time to visit if you want summer weather without the peak season crowds.

October

October offers a gentle transition into autumn. The weather is generally mild and pleasant, with daytime highs of around 21°C. You will still see plenty of sunshine, though the chance of rain increases as the month progresses.

The sea often stays warm enough for swimming until late October. It is a wonderful time for walking and exploring the ancient footpaths, as the intense heat has completely vanished. Some businesses begin to close for the winter by the end of the month, making it a quiet, reflective time to enjoy the island.

November

November brings cooler, more unpredictable weather as winter approaches. Daytime temperatures drop to around 17°C, and the evenings feel distinctly chilly. Rainfall becomes more frequent, helping to replenish the island’s dry soil.

While you might still experience bright, sunny days, it is no longer reliable beach weather. The sea temperature drops below 19°C. November is suitable for travellers who enjoy dramatic skies, quiet villages, and getting a sense of local life without the tourist crowds. You will definitely need warmer clothing and a good jacket.

December

December is a true winter month on Amorgos. It is generally the wettest time of the year, and daytime temperatures hover around 14°C. The skies can be overcast, and strong winter winds often sweep across the Aegean.

The island is very quiet, with tourism largely paused until spring. Ferries can occasionally be delayed by rough winter seas. If you visit in December, you are likely there for a specific reason, such as a retreat or seeing family. Pack warm, waterproof layers, as the damp sea air can feel quite cold.

Wind and Meltemi

When talking about weather in the Cyclades, wind is just as important as sunshine. The defining weather feature of the Greek summer is the Meltemi.

The Meltemi is a dry, seasonal northerly wind that blows across the Aegean Sea. It usually begins in June, peaks in July and August, and fades away by September. On Amorgos, which is famously mountainous and quite exposed, this wind is a major part of the summer experience.

For visitors, the Meltemi is mostly a blessing. Without it, the intense August sun would feel overwhelming. The wind keeps the air clear, drops the humidity, and makes hot days feel comfortable. However, a sunny day can still feel very windy, and the wind can blow steadily for several days at a time.

This northerly wind directly affects how you use the island’s beaches. When the Meltemi is blowing strongly, north-facing and east-facing areas including the famous Agia Anna beach beneath the Hozoviotissa Monastery can experience large waves and sea spray.

To find calm water, you need to head to the sheltered beaches facing south and southwest. Places like Mouros, Kalotaritissa, and the beaches in Aegiali bay are often much better protected from the northerly winds. Choosing your beach based on the wind direction is a normal part of daily life on Amorgos.

The wind also affects swimming and boat trips. While the sheltered coves remain calm, the open sea can become quite rough. Small boat tours to nearby islets like Nikouria might be postponed on very windy days. If you are planning a boat trip, always check with the operator, as they monitor the conditions carefully.

Hikers should also be mindful of the wind. Amorgos has incredible mountain trails, but walking along exposed ridges when the Meltemi is howling can be tiring. On very windy days, it is often better to choose lower, more sheltered footpaths.

Finally, very strong winds can occasionally disrupt ferry schedules. While modern ferries can handle rough seas, smaller fast ferries or catamarans may sometimes be delayed or cancelled. It is always wise to keep an eye on official updates from your ferry operator if the forecast predicts exceptionally strong winds during your travel days.

Weather for Activities

Beach days

For the best beach days, you want temperatures above 24°C and plenty of sunshine. June, July, August, and September provide these conditions effortlessly. Because Amorgos can be windy, the perfect beach day often involves checking the wind direction and choosing a sheltered cove. A strong Meltemi breeze will keep you cool while sunbathing, but you might need to weigh down your towel. Rain is almost never an issue during the summer, meaning you can plan beach trips with confidence.

Swimming

The swimming season on Amorgos generally runs from late May to late October. The Aegean Sea takes time to warm up, so June waters are refreshing, while August and September offer the warmest sea temperatures at around 24°C. Wind plays a huge role in swimming comfort. When the northerly wind blows, the sea on the exposed northern coast becomes choppy. For smooth, relaxing swimming, head to the island’s southern beaches, which remain much calmer.

Hiking and walking

Amorgos is famous for its spectacular, rugged hiking trails, but weather is a vital consideration. The best conditions for walking are found in spring (April and May) and autumn (October). During these months, temperatures are mild, and the sun is less intense. If you hike in the summer, you must start very early in the morning. The island has little natural shade, and the midday heat combined with high UV levels can make mountain walking exhausting and uncomfortable.

Boat trips and sailing

Boat trips around the island’s dramatic coastline are highly dependent on sea conditions. Calm, windless days are perfect for exploring sea caves and small nearby islets. However, when the summer Meltemi winds blow strongly, the open water becomes choppy, and smaller tour boats may not run. The conditions can change quickly in the Aegean. You should not worry, but simply ask local operators for their advice and check their latest sailing information before booking.

Sightseeing and photography

Exploring the dazzling white alleys of Chora or climbing the steps to the Hozoviotissa Monastery is best done when the heat is manageable. Spring and autumn provide beautiful, clear light and comfortable temperatures for sightseeing. In peak summer, aim to explore villages in the early morning or late afternoon. The harsh midday sun washes out photographs and makes climbing steep paths very sweaty work. A breezy day is actually excellent for sightseeing, as it keeps you cool while walking.

Best Time to Visit for Weather

Choosing the best time to visit Amorgos depends entirely on what you want from your holiday. The island’s climate changes enough throughout the year to offer distinctly different experiences.

Best months for hot beach weather

If your ideal holiday involves endless sunshine, hot sand, and long days by the sea, then July and August are the best months. During this peak period, the weather is dependably hot and dry. You can expect daytime temperatures around 28°C and up to 14 hours of sunshine. You will also experience the Meltemi wind, which provides a natural air-conditioning effect. Just remember to head to the south-facing beaches when the north wind is strong.

Best months for swimming

While August is hot, September is arguably the greatest month for swimming. By September, the intense summer heat has softened slightly, but the Aegean Sea has spent all summer absorbing the sun. The water is at its warmest, often around 24°C, and the Meltemi winds usually begin to fade. This results in beautifully warm, calm seas that are perfect for long, lazy swims and snorkelling.

Best months for hiking

Amorgos has some of the most dramatic walking trails in the Cyclades, but summer is simply too hot for serious trekking. The best weather for hiking is found in April, May, and October. During these months, the temperatures sit comfortably in the high teens or low twenties. In spring, the island is green and covered in wildflowers. In autumn, the sea is still warm enough for a post-hike swim, and the trails are quiet.

Best months for sightseeing

If you want to explore the island’s ancient sites, picturesque villages, and the famous cliffside monastery, May and June are fantastic. The weather is warm and sunny, but not yet so hot that climbing steps becomes exhausting. The days are long, giving you plenty of daylight to explore. September is equally good for sightseeing, offering clear skies and comfortable temperatures.

Best months for fewer crowds and milder weather

For those who dislike heat and want to experience authentic, quiet island life, late April, early May, and October are ideal. The weather is generally bright and mild, though you might encounter the occasional shower. You will need a light jacket for the evenings, but you will be rewarded with empty beaches, peaceful tavernas, and excellent conditions for photography and gentle exploration.