Greece weather in May

Wondering what to expect of weather in Greece in May? Read on for a run-down of everything from average air and sea temperatures, to what to expect in terms of costs and crowds. We also share itinerary suggestions that are sure to make your trip all the most special.

Greece in May at a glance

• May means warm and mild temperatures, ranging from 61°F to 75°F (6°C to 24°C).
• This month is a particularly dry and sunny time to visit Greece.
• May marks the beginning of the tourist season in Greece, with tourist crowds gradually increasing as the month progresses.
• May in Greece means that the spring blooms are in full swing.

Is May a good time to visit Greece?

If you’re in the market for warm, sunny weather before the temperatures soar to sizzling heights — and before peak-season crowds descend — May is a very good time to visit Greece. 

In fact, May is one of the very best months to visit the Greek Islands, in particular. And the reasons? All the amenities will be back open after their winter and shoulder-season hibernation. In addition, you’ll be able to find yourself the perfect spot on beautiful Greek beaches. 

At the same time, there are enough visitors to give beaches (and bars) a lively vibe, but without the intensity that can come during the later peak season months.

Thinking of visiting Greece in May? Talk to our local Greek travel experts and save yourself the hustle of planning.

Air and sea temperatures in Greece in May

The average air temperature in Greece in May ranges from 64°F - 75°F (18°C to 24°C), depending on the region. The southern parts of the country, such as Athens and Crete, tend to experience higher temperatures, while the northern parts have slightly cooler temperatures.

As for the sea temperature, the waters around Greece in May start to warm up but can still be a bit chilly for swimming. The average temperature ranges from 63°F - 68°F (17°C to 20°C).

Convinced to go? See our fully customizable Greece itineraries and explore the most beautiful places in Greece.

Can it rain in Greece in May?

May is a fairly dry month in Greece. While you might experience some showers, you stand a greater chance of enjoying the ideal sunny day. A 74% chance, in fact.

However, there may be some local variations. In the coastal areas and islands, the average rainfall in May is around 0.4-0.8 inches (10-20 mm). In the mainland (including Athens and Thessaloniki), the average rainfall is slightly higher at around 1.0-1.6 inches (25-40 mm).

For more details on the weather in Greece around the year, read up on when to go to Greece. 

What about the crowd and cost?

While May sits outside the peak season, visitor numbers are ramping up on previous months, and costs are creeping up, too.

As a result, you’d be wise to book your flight or ferry and accommodation in advance. Just to be on the safe side, and to (maybe…) still bag yourself a pre-peak-season bargain.

Set on enjoying a spring break? Discover more of the best places to visit in May.

What to wear in Greece in May

With the weather in Greece in May warming up, you can certainly give your summer clothes an airing — bring shorts, t-shirts and summer dresses.

That said, we don’t advise casting off your warmer clothes just yet. The evenings cool down, and the days can be a bit on the brisk side, too. So, you’ll also want to pack a pullover, long pants, and a cover-up shawl.

Ready to explore Greece? Get started with our expert travel planning tips.

Plan your trip with our Greece itineraries

Our Greece itineraries are crafted to help you experience the best of the country, stress-free. Think of them as a starting point — perfect for planning, but flexible enough to adjust to your own pace and interests. After all, travel is about freedom, but a little planning goes a long way.

• Greece itinerary 7 days: A week in Greece covers the essentials — often a mix of Athens and a few iconic islands. Expect to see ancient ruins, charming villages, and picturesque beaches.
• Greece itinerary 10 days: Ten days allows you to explore both mainland highlights and more islands, giving you a taste of Greece’s history, culture, and island life.
• Crete itinerary: A journey through Crete's rugged landscapes, ancient ruins and stunning beaches. A combination of historic towns, secluded beaches and traditional Cretan cuisine awaits you.
• Santorini itinerary: A focused itinerary on Santorini’s breathtaking views, volcanic beaches, and famous sunsets. Perfect for those looking to relax, explore charming villages, and enjoy the island’s romantic atmosphere.

Find even more options for your trip in our list of the best vacation destinations in May.

What to do in Greece in May

Experience traditional Greek festivals

May is a month filled with festivals in Greece. Attend events like the Athens Epidaurus Festival, the Flower Festival in Nafplio, or the Sardine Festival in Kalamata.

Planning a longer stay in Athens? Explore the best places to stay in Athens.

Explore the Peloponnese region

Discover charming towns like Nafplio, explore the ancient ruins of Mycenae, and relax on the beautiful beaches of the region.

Get your adventure on 

Being pleasantly warm, but not prohibitively scorching, May is a good time to visit Greece for adventure sports.

You can, for example, hike the Samaria Gorge located in Crete or take a boat trip to the Blue Caves and Shipwreck Beach in Zakynthos.

Go island hopping

May is a top time to explore the Greek Islands. For the warmest weather in May, consider visiting Kos, Mykonos, Crete, or Santorini.

They’re warm enough for sun-bathing and swimming, and to enjoy long romantic strolls. In the case of Crete, May is also a good time to enjoy adventure pursuits — more on that below.

Considering Crete for your trip? Check out our list of the best places to stay in Crete.

Planning your May trip to Greece

Fancy visiting Greece in May, or any other time of the year, for that matter? Get yourself a copy of The Rough Guide to Greece to start planning your dream trip.

Alternatively, if you’re not keen on planning, browse our customizable Greece itineraries, and talk to our local Greece travel experts.

Love the sound of exploring Greece away from the mainland? Read up on the best Greek Islands, and get yourself The Rough Guide to Greek Islands.