Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.
In numbers
76.3km²
Area
81km
Coastline
680m
Highest point
24°C
Warmest sea
August
86km
To the mainland
When to go to Sifnos
Best for the beach from July to September.
The sea is warmest in August (24 °C) and coolest in February (16 °C). Comfortable swimming (21 °C or more): from June to October.
Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.
Island of Cyclades, Aegean Sea, Greece
Sifnos is an island in Greece. It covers 76.3 km², with 81 km of coastline. Its highest point rises to 680 m. The nearest mainland is 86 km away.
Getting there
- Mykonos Island National Airport (JMK)nearest airport with scheduled flights · 76 km in a straight lineCar hire at JMK airport (Mykonos)Discover Cars · Affiliate link↗
- FerriesSerifos - Sifnos, Sifnos - Milos, Sifnos - Kimolos, Folegandros - Sifnos
- 86 km from the mainlanddistance to the nearest continental coast
- From July to Septemberbest months to go (from 30 years of averages)
Plan the trip
Ferries, stays and things to do
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
On the island
What you find on Sifnos.
- 18beachesVathy, Vroulidia, Glypho and 15 more
- 6viewpointsVilla Sviggos and 5 more
- 7lighthousesKamares Lighttower, Agios Georgios Afentis-Cherronisos Lighthouse and 5 more
- 1ferry terminalsKamares
- 1marinas
- 3named peaksProfitis Ilias
- 3castles and fortsKastro of Sifnos, Tower
- 8ruins and archaeological sitesPyrgos, White Tower, Pyrgos Agios Cherronisou and 5 more
- 1dive centresSifnos Diving Center
- 21waymarked walking routes1 - Agios Andreas - Artemonas, 2 - Kastro - Panagia Chrysopigi, 3 - Apollonia - Platis Yialos and 18 more
- 1campsitesCamping Makis
- 93hotels, guesthouses and apartments
- 67restaurants, cafés and bars
Counted in OpenStreetMap, the map anyone can edit, inside the island's outline. A low number may only mean nobody has mapped it yet.
Cross-checked with our atlases
Sifnos in our other atlases
Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Sifnos, each with its own numbers.
2mountainsPeakyas
The shape of the land.
On average the island stands 195 m above the sea. 56 % of it is below 200 m.
- 14 %0–50 m
- 42 %50–200 m
- 41 %200–500 m
- 2 %500–1,000 m
Share of the island's area in each altitude band, from the Copernicus DEM (30 m, read at 30–240 m on large islands).
Size, for real
Next to islands you may know.
5 km
All outlines drawn to the same scale (Natural Earth and OpenStreetMap).
Month by month
The weather on the island.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon high (°C) | 14 | 14 | 15 | 17 | 21 | 25 | 27 | 27 | 25 | 22 | 18 | 16 |
| Night low (°C) | 12 | 12 | 13 | 15 | 18 | 22 | 24 | 25 | 23 | 20 | 17 | 14 |
| Sea (°C) | 16 | 16 | 16 | 16 | 19 | 22 | 24 | 24 | 24 | 22 | 19 | 17 |
| Rain (mm) | 102 | 86 | 55 | 28 | 20 | 6 | 3 | 3 | 20 | 52 | 72 | 94 |
| Wet days | 14 | 13 | 10 | 6 | 4 | 1 | 1 | 1 | 3 | 8 | 11 | 14 |
| Sun h/day | 3.7 | 4.6 | 6.8 | 8.5 | 10.4 | 12.1 | 12.3 | 11.3 | 9.5 | 7.1 | 5.1 | 3.5 |
| Wind (km/h) | 26 | 26 | 23 | 21 | 17 | 18 | 22 | 23 | 21 | 22 | 22 | 25 |
Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.
Recent years
Warmer and cooler years at sea.
Each month's sea temperature compared with its 1991–2020 average, in degrees.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | +0.4 | +0.5 | +0.3 | +0.2 | +0.7 | +0.2 | −0.2 | +0.4 | +1.1 | +1.8 | +0.8 | +0.7 |
| 2021 | +1.3 | +1.2 | +0.9 | +0.7 | +1.0 | +1.2 | +0.9 | +1.1 | +0.3 | −0.1 | +0.1 | +0.2 |
| 2022 | +0.9 | +0.7 | +0.5 | +0.3 | +0.6 | −0.3 | −1.0 | +0.1 | +0.8 | −0.4 | −0.4 | +0.8 |
| 2023 | +1.3 | +0.7 | +0.6 | +0.5 | −0.4 | −0.4 | +1.2 | +1.7 | +0.7 | +0.9 | +2.1 | +1.7 |
| 2024 | +1.8 | +0.8 | +1.1 | +1.2 | +0.4 | +0.6 | +0.3 | +1.4 | +1.6 | +1.4 | +0.7 | +1.6 |
| 2025 | +1.4 | +1.3 | +0.8 | +0.2 | +0.1 | −0.3 | +0.6 | +0.6 | +0.4 | +0.5 | +1.5 | +1.5 |
+1 warmer than usual −1 cooler than usual
Photos
Seen by visitors.




Nearby
More islands nearby.
About these numbers
| Names, area, population | Wikidata (Q212029) · CC0 |
|---|---|
| Outline | © OpenStreetMap contributors · ODbL |
| Sea temperature | NOAA OISST v2.1 · 1991–2020 |
| Climate | NASA POWER · 1991–2020 |
| Relief, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Beaches, ports, lighthouses, trails | © OpenStreetMap contributors · ODbL |
| Towns | GeoNames · CC BY 4.0 |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Beaches, mountains, lakes and waterfalls | Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
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