The weather in Sifnos

The weather in Sifnos

The weather in Sifnos and the Aegean in general

The weather in the Aegean and Sifnos

The weather in Sifnos

Sifnos enjoys an excellent climate that has impressed many travelers over the centuries. Summer is sunny and pleasant, while winter is mild with a few rainy days. Frost and snowfall are extremely rare, making the island an ideal destination all year round.

Summers are wonderful with abundant sunshine, while winters are mild with occasional rainfall and very rare frost or snow.

Sifnos

The winds in Sifnos and the Aegean

The island is mainly affected by northern winds, while in summer, the "meltemi" winds appear, cooling the atmosphere and making the heat more bearable.

Chart showing average sunshine hours in European cities and Sifnos

The meltemi winds start in late May and last until October, reaching their peak intensity in July and August. They usually blow from 8 AM to 8 PM, with their strongest presence around midday, gradually weakening in the late afternoon.

During winter, strong northern winds dominate, sometimes reaching 8-9 on the Beaufort scale, especially in the Cyclades and the straits of Kafireas (Cape Doro). During this period, the Sirocco wind may also appear, a warm and humid southern wind that brings low clouds and rain, though such stormy winds are rare in the Aegean.

If you visit Sifnos in the summer months, the refreshing sea breeze and meltemi winds will make your stay even more enjoyable!

Sailing (Wind and Sea State) Forecast for Cyclades

Windy poseidon system meteo.gr

Questions & Answers (FAQ)

For many travelers, the most balanced months are May, June, September and October, because they combine good weather with a milder rhythm compared with the height of summer.

July and August are ideal for visitors who want a lively island, frequent swimming and more places open, but they usually come with more traffic and stronger winds.

The meltemi is the well-known northern summer wind of the Aegean and it is common in Sifnos, especially in mid-summer. It often makes the heat more bearable, but it can affect the beach experience or riding a two-wheeler.

On windy days, many visitors choose more sheltered beaches or adjust their plans, with more village strolls and less exposure to open coasts.

Summer in Sifnos is sunny and warm, as in most Cycladic islands. However, the breeze often helps temperatures feel more pleasant than in destinations without wind.

Even so, the midday sun is strong and basic protection is necessary, such as a hat, sunscreen, water and good planning for the beach or walking.

Yes, especially in late spring and early autumn many travelers enjoy the sea normally. How comfortable it feels depends, of course, on the month, the wind and your personal preferences.

These seasons are especially popular with visitors who want to combine swimming with walks, food, hiking and a quieter atmosphere on the island.

Winter in Sifnos is generally mild compared with mainland areas, but the island moves at a quieter pace and fewer tourism-related options are open.

It is a season better suited to travelers looking for authenticity, rest and contact with the more local side of Sifnos than to visitors seeking a purely summer holiday.

In summer you need light clothes, swimwear, a hat, sunglasses and something light but long-sleeved for the wind at night or on the ferry deck. If you are riding a two-wheeler, the wind needs even more attention.

In spring and autumn it is useful to have a light cardigan or windbreaker, especially for evening walks or for days with stronger meltemi.

Privacy Policy | Terms and conditions | Webmaster

© e-sifnos.com 2026

*Product Disclaimer: Information on listed products and services are provided by the operator and were correct at the time of publishing. Rates are indicative based on the minimum and maximum available prices of products and services. Please visit the operator’s website for further information. All prices quoted are in Euro (€). E-sifnos makes no representations whatsoever about any other websites which you may access through this website. Some websites which are linked to the e-sifnos website are independent from e-sifnos and are not under the control of e-sifnos. E-sifnos does not endorse or accept any responsibility for the use of websites which are owned or operated by third parties and makes no representation or warranty in relation to the standard, class or fitness for purpose of any services, nor does it endorse or in any respect warrant any products or services by virtue of any information, material or content linked from or to this site.