Weather in Kithnos in December
December is early winter in Kithnos: cool and one of the wettest times of year. Expect highs of about 15°C / 58°F and overnight lows near 10°C / 50°F. Expect rain on around 10 days and about 125 mm over the month, often in heavy bursts with dry spells between them. The sea averages about 17°C / 63°F, cold enough that only hardy swimmers go in. Kythnos is a low, quiet island in the western Cyclades, within easy reach of Athens. Winter here is shaped by the wind: storms sweep through regularly, often followed by calm, bright days. You get about 9½ hours of daylight a day, so plan sightseeing for the middle of the day. Pack a warm jacket, layers and a waterproof, plus shoes that can handle wet paths. Sunny spells between the rain can be beautiful, with clear air and long views. Plan outdoor time around the middle of the day, when it's at its warmest.
Swimming in Kithnos in December
At around 17°C / 63°F, the sea in Kithnos is too cold for most people to swim in December. For warm-water swimming, aim for July, August and September, when the sea is at its best. Beaches like Kolona are still worth a visit for the scenery and a walk along the shore. Beaches are empty and unstaffed in winter, so swim only in calm conditions. If you do go in, a wetsuit is a good idea.
Crowds & Prices in Kithnos in December
You'll have Kithnos largely to yourself in December. It's the cheapest time to visit, with the best deals on accommodation. Christmas and New Year bring some Greek visitors home, but it stays quiet. Weekends are busier than weekdays, as it's a popular escape from Athens. It's a good time to see everyday life, away from the summer bustle. You can usually book at short notice.
What's Open in Kithnos in December
Ferries to Kithnos from Piraeus and Lavrio run all year, but less often in December, and rough seas can cancel sailings. The resort side of the island shuts down, with most hotels and beach tavernas closed until spring. Archaeological sites and museums keep shorter winter hours. Most sites close on 25 and 26 December. Cash is useful, as smaller places may not take cards.
Festivals & Holidays in Kithnos in December
Christmas is celebrated with church services, carols sung door to door by children and festive sweets like melomakarona and kourabiedes. On 6 December, Saint Nicholas, patron saint of sailors, is honored in harbors across Greece, and decorated boats appear alongside Christmas trees. In Kithnos, as across Greece, these traditions are very much alive. Beyond that, it's a month of everyday life, with locals filling the cafés and tavernas in the evenings.
Is December a Good Time to Visit Kithnos?
December is worth it for Kithnos if you're interested in culture, food and walking rather than beaches. In numbers: highs of about 15°C / 58°F, lows of 10°C / 50°F and rain on around 10 days in a typical December. It's quiet, prices are low and the main town still has plenty going on, but the sea is cold and many resort businesses are closed. For beach weather, come in June, September or October instead.
Frequently Asked Questions
What time does the sun set in Kithnos in December?
Through December, sunset in Kithnos moves from around 5:05 pm to around 5:15 pm in Greek local time, bringing some of the earliest sunsets of the year. In mid-December, expect it at around 5:05 pm. With short days, plan outdoor sightseeing for the morning and early afternoon.
Does it get stormy in Kithnos in December?
December is one of the stormiest months in the Aegean. Strong winds and bands of rain come through regularly, and the worst storms can cancel ferries for a day or more. There are calm, bright days in between, and snow at sea level is very rare. If you're traveling by ferry, allow a buffer day before any flight home.
Can I visit Kolona beach in December?
Yes, you can reach Kolona beach all year, and in December you'll probably have it to yourself. Don't expect sunbeds, beach bars or lifeguards, and the sea is cold for swimming, but it's a beautiful place for a walk on a calm, sunny day. The sandbar links Kythnos to the islet of Agios Loukas.
Do I need a car on Kithnos in December?
Yes, if you want to see more than the port. Bus services are limited in December, and a car makes it easy to reach villages, beaches and viewpoints. Rental rates are among the lowest of the year, but fewer agencies are open.
Is December or January better for visiting Kithnos?
December has the edge for atmosphere, with Christmas decorations and New Year celebrations, while January is quieter still, with Epiphany on 6 January. The weather is similar: cool, changeable and occasionally stormy. Both suit travelers who want the island at its most local.
Kithnos Weather by Month
