Kythnos Island, Cyclades, Greece
One of the Aegean's best-kept secrets, Kythnos rewards visitors with a world-famous double sandbar, healing thermal springs, and whitewashed villages where daily life still moves at its own unhurried pace.
One of the Aegean's best-kept secrets, Kythnos rewards visitors with a world-famous double sandbar, healing thermal springs, and whitewashed villages where daily life still moves at its own unhurried pace.
Ships dock at or tender into Merichas, the main port village on Kythnos's west coast — the harbor front is right at your feet.
💡 Pro move: Cash essential — some water taxis and small cafes don't take cards. ATMs available in Merichas and Chora. Tap water is brackish; drink bottled water.
All cruise traffic funnels through Merichas, the island's only commercial port, on the west coast.
| Cruise Line | Typical Berth / Arrival | Dock or Tender |
|---|---|---|
| Small/mid-size cruise lines (Ponant, SeaDream, Windstar, etc.) | Merichas quay, Kythnos📍 | Docked |
| Larger cruise vessels | Merichas Bay anchorage📍 | Tendered |
Kythnos packs beaches, thermal springs, and medieval villages into a compact island best explored by water taxi, ATV, or rental car.
The island's crown jewel — a 240 m double-sided sandbar of golden sand connecting Kythnos to the islet of Agios Loukas. Turquoise water on both sides. Jump a water taxi from Merichas pier.
Book Kythnos beach tours →Natural sulfur and iron hot springs flow into the sea at the village of Loutra on the northeast coast. Soak in rock pools where steaming mineral water meets the cool Aegean — completely free.
Find Kythnos hot springs tours →The island capital (Messaria) is a postcard Cycladic village with narrow whitewashed alleys, hilltop churches, and a small archaeological museum displaying finds from Maroulas — the oldest circular dwellings found in the Aegean.
Find Kythnos village tours →Dryopida is an inland village with unique tiled (not flat) rooftops — a rarity in the Cyclades. At its edge sits Katafyki Cave, one of Greece's largest, used as a refuge during Ottoman rule and WWII.
Find Kythnos cave tours →Martinakia is a short 10-min walk north of the pier — shaded, sandy, and family-friendly. Apokrousi is a longer sheltered bay excellent on windy days and reachable by rental or taxi.
Find Kythnos beach tours →Merichas and its nearby beach offer an easy stroll; the rest of the island requires wheels.
A gentle flat walk north along the coast from the port to the tamarisk-shaded cove of Martinakia Beach. Great for a quick swim without needing transport.
🗺️ See full route in Maps →Once you've taken a taxi or bus to Chora, explore its whitewashed alleyways on foot. Pass the main church of Agios Savvas, browse local honey and cheese shops, and loop back via the small archaeological museum.
Climate normals for Kythnos Island, Cyclades, Greece (2014–2023 averages). Pack for the month you sail — highs, lows, and how many rainy days to expect.
| Month | Avg High | Avg Low | Rainy Days | Sunrise | Sunset |
|---|---|---|---|---|---|
| Jan | 57°F / 14°C | 50°F / 10°C | 11 | 7:35 AM | 5:28 PM |
| Feb | 58°F / 14°C | 51°F / 11°C | 8 | 7:11 AM | 6:01 PM |
| Mar | 60°F / 16°C | 53°F / 12°C | 7 | 6:33 AM | 6:29 PM |
| Apr | 65°F / 18°C | 56°F / 13°C | 4 | 6:47 AM | 7:57 PM |
| May | 72°F / 22°C | 63°F / 17°C | 4 | 6:13 AM | 8:24 PM |
| Jun | 80°F / 27°C | 70°F / 21°C | 2 | 6:01 AM | 8:44 PM |
| Jul | 85°F / 29°C | 76°F / 24°C | 0 | 6:13 AM | 8:42 PM |
| Aug | 85°F / 29°C | 76°F / 24°C | 1 | 6:38 AM | 8:14 PM |
| Sep | 80°F / 27°C | 72°F / 22°C | 3 | 7:04 AM | 7:29 PM |
| Oct | 72°F / 22°C | 66°F / 19°C | 4 | 7:30 AM | 6:45 PM |
| Nov | 66°F / 19°C | 60°F / 16°C | 6 | 7:02 AM | 5:11 PM |
| Dec | 60°F / 16°C | 54°F / 12°C | 8 | 7:29 AM | 5:05 PM |
Source: Open-Meteo ERA5 (10-yr daily averages)
Upcoming cruises that call at Kythnos Island, Cyclades, Greece. Dates, prices, and ports of call change — always confirm with the cruise line before booking.
Itineraries and prices change — always confirm with the cruise line before booking. Some links are affiliate links that may earn us a commission at no extra cost to you.