Is Mykonos in December Weather Good for Boat Trips and Beaches?

Mykonos in December weather feels nothing like the island you see in summer holiday photos. The beaches are almost empty, temperatures hover around 15°C (59°F), and the sea is usually too cold for comfortable swimming. Boat trips aren't as easy to arrange either, especially when strong winds sweep across the island.

But there's something appealing about seeing Mykonos without its usual crowds. You can wander along quiet beaches, explore traditional villages, and enjoy coastal views without rushing anywhere. Just bring a jacket instead of your usual beachwear.

Before planning your trip, here's what you should know about December weather, beach visits, and sailing opportunities.

What Is Mykonos Weather Like in December?

Mykonos in December weather can be surprisingly pleasant one day and windy or rainy the next. The typical Mykonos December temperature sits between 14°C and 16°C during the day, with nights cooling to around 10–12°C.

You might find yourself enjoying sunshine in Mykonos Town, only to need a warmer jacket along the waterfront. The wind makes quite a difference, particularly near exposed beaches and harbors. Rain is more common than during summer, although it doesn't necessarily last all day. You'll also have roughly 9.5 hours of daylight, so starting your sightseeing earlier makes sense.

Here's what December usually looks like.

Pack clothes you can layer, and keep a little flexibility in your plans. Winter weather rarely follows a perfect holiday schedule.

Temperature Trends in December in Mykonos 2021 to 2025

The Mykonos December temperature hasn't followed a steady pattern over the past five years. In 2021, average daytime temperatures were 15.8°C. They climbed to 17.4°C in 2022 and reached 18.2°C in 2023.

The following December was cooler at 16.4°C, while 2025 recorded 17°C. These figures come from historical weather reanalysis data rather than a forecast. They show why you shouldn't expect exactly the same weather every December.

For a broader look at seasonal climate patterns, you can explore WeatherSpark's Mykonos weather guide.

Are Boat Trips in Mykonos Worth Taking in December?

If boat trips are the main reason you're visiting, December probably isn't the month you'd choose. Mykonos boat trips in December depend heavily on the weather. The island can experience strong winds and unsettled seas, which aren't ideal when you plan to spend hours on the water.

There's also the question of availability. Many operators focus on the warmer months, so finding a sightseeing cruise in winter can take more effort.

A few things are worth knowing before you make plans.

• Not every day is suitable for sailing. A sunny morning doesn't always mean calm water, especially around exposed coastal areas.

• Fewer boats are operating. Some companies pause their regular excursions until the tourist season returns.

• Delos and Rhenia aren't guaranteed options. These popular routes depend on the operator, available vessels, and marine forecast.

• Calmer days do happen. A suitable boat may be able to depart when conditions allow, but plans can change.

• Booking flexibility matters. Ask about cancellations, alternative dates, and weather-related refunds before paying.

A winter boat trip can still be enjoyable under the right conditions. Just don't build your entire holiday around a departure that might not happen.

For an idea of what these excursions usually offer, explore this private Mykonos yacht trip to Delos, Rhenia and secluded bays. December availability still needs confirmation. 

Can You Enjoy Mykonos Beaches in December?

You certainly can, although you'll probably spend more time walking along the shore than getting into the water. One of the nicest things about Mykonos in December weather is how peaceful the beaches feel without the usual summer crowds. You can take your time, snap a few photos, and listen to the waves without busy beach clubs in the background.

A few beaches are particularly worth exploring.

• Ornos Beach has a lovely bay where you can enjoy a gentle walk and take in the waterfront scenery.

• Platis Gialos offers a broad sandy shoreline that's especially appealing for coastal photographs.

• Agios Sostis feels more natural and secluded, with rugged surroundings and fewer developed facilities.

Don't expect a typical beach holiday, though. The Mykonos sea temperature in December averages around 17°C. That's cold enough to put most visitors off swimming, even when the sun comes out.  Many beach clubs, sunbed rentals, and seasonal facilities are closed as well. Bring comfortable walking shoes and enjoy these places for their scenery rather than their summer atmosphere.

Can You Book a Private Yacht in Mykonos During December?

A private yacht may offer more flexibility than a scheduled cruise, but finding one in December isn't always straightforward. Most yacht operators concentrate their services around the main tourist season. During winter, fewer vessels may be available, and departures still depend on safe weather conditions.

If you're curious about the usual cruising routes, this private Mykonos yacht tour along the south coast includes Delos and Rhenia, with departures subject to availability and sea conditions. 

If you're considering a Mykonos yacht charter, there are a few practical things to remember.

• Private itineraries can be more flexible, allowing operators to adjust departure times or routes when conditions permit.

• Winter availability is limited, so you'll need to contact providers rather than assume boats are running.

• Delos and Rhenia remain popular cruising areas, but visiting them by yacht in December isn't guaranteed.

• The captain makes the final safety decision, even if you've already arranged your trip.

For travelers interested in exploring farther, this private luxury yacht experience from Mykonos to Delos, Rhenia and Syros offers another itinerary to consider when weather permits. 

Is It a Good Time to Visit Mykonos in December?

Is Mykonos worth visiting in December? That depends on what you enjoy doing on holiday. Mykonos in December weather is cooler and windier than summer, but if you prefer quiet streets, local culture, and sightseeing without crowds, winter has its advantages.

Mykonos Town is quieter, making it easier to wander through its narrow streets and admire the whitewashed houses. Little Venice is especially atmospheric when waves roll against the waterfront buildings. You can also visit the famous windmills without competing for a photograph. For a change of scenery, head to Ano Mera and discover a more traditional side of island life.

The quieter season does come with a few inconveniences. Many tourist restaurants, shops, and hotels close for winter, while public transport runs less frequently. Accommodation may cost less than in summer, but you'll have fewer places to choose from. If your ideal holiday involves lively nightlife, beach clubs, and regular boat excursions, you'll have a better experience during the warmer months.

What Is the Best Time for Beaches and Boat Trips in Mykonos?

The best time for boat trips in Mykonos is generally between June and September. The weather is warmer, the sea is more inviting, and you'll find a much wider choice of excursions.

Here's how the different months compare.

• June to September is the main season for swimming, beach activities, and sightseeing cruises.

• May can be a good choice if you prefer fewer visitors, although the seawater may still feel chilly.

• July and August offer plenty of beach activity, but strong Meltemi winds can sometimes interrupt sailing plans.

• September and October can be pleasant for quieter visits, with October bringing a greater chance of unsettled weather.

• December is more suitable for sightseeing and coastal walks than regular boat excursions.

If you're visiting during the warmer months, a private Mykonos sunset yacht cruise is another option worth exploring. You can enjoy the coastline and evening views from the water. 

If sailing is high on your holiday list, June or September can be particularly appealing. You'll have more excursion options than in winter without necessarily visiting during the busiest weeks.

Final Thoughts

Mykonos in December weather  is worth considering if you're happy to swap busy beaches for quiet walks and relaxed sightseeing. The island has a different charm in winter, especially when you can explore its streets and coastline without the summer rush.

But if swimming, sailing, and spending long afternoons by the sea sound more like your holiday, choose a warmer month. June through September gives you more opportunities to enjoy the beaches and discover Mykonos from the water.

FAQs: Mykonos in December Weather

Is Mykonos too cold for swimming in December?

For most people, yes. The sea averages around 17°C, which feels cold for swimming. Beach walks are a much more comfortable option.

Are boat tours available in Mykonos in December?

A few operators may offer trips when conditions allow. However, winter departures are limited, so it's worth checking availability before making plans.

Does it rain a lot in Mykonos in December?

December is among the wetter months, but you won't necessarily have rain every day. Expect a mixture of showers, cloudy skies, and occasional sunshine.

What should I pack for Mykonos in December?

Bring warm layers, a windproof jacket, comfortable shoes, and something waterproof. You'll appreciate the extra protection when walking along the breezy waterfront.