Santorini weather

Our guide to the weather in Santorini during May

20

Average high

6

UV Index

29mm

Monthly rainfall

19

Sea temperature

Santorini is a stunningly picturesque Greek island with a unique atmosphere, perfect for a relaxed getaway. May is a great time to visit as temperatures are typically mild and the island is less crowded. We've looked at the most up-to-date weather data for Santorini, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Santorini weather in May.

How warm is it in Santorini during May?

The temperature is extremely stable in May with average highs of 20℃ and lows just 1℃ lower at 19℃. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Santorini during May?

On average, in May you'll see rain on just one day in the month. In other words, you shouldn't see any of the wet stuff. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Santorini during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

How warm is the sea in Santorini during May?

The water around Santorini is around 19℃ during May. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.

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Santorini Blog posts

From the Ireland's most popular travel bloggers

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Where to stay in Santorini: Fira, Oia, or elsewhere?

25th April 2022 by Eat Sleep Breathe Travel

When it comes to the Greek islands, Santorini is probably the most famous. This stunning island is known for its white villages with blue-domed churches perched on the tops of towering cliffs. It’s the iconic image of the Cyclades islands and one of the most photographed destinations in the world. As such, it’s a very popular place to visit which leads to an important question for travellers headed to Greece: where to stay in Santorini?...

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A Santorini itinerary for first-timers: 3-5 days in Santorini, Greece

29th April 2022 by Eat Sleep Breathe Travel

No visit to the Greek islands is complete without a visit to Santorini, at least for a couple of days. I spent a week here and got to explore different parts of the island during my time. That being said, I know not everyone has that long to spend here but, in my point of view, you should spend at least 3 days in Santorini. It may be small, but there is a lot to see and do and, as I found, part of the charm is being able to relax and just enjoy the atmosphere. Which is why I’ve created this...

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31 unmissable things to do in Santorini

25th April 2022 by Eat Sleep Breathe Travel

Santorini is one of those places that seems to be on everyone’s bucket list. Whether you are looking for a romantic holiday or visiting as part of a Greek island sailing tour, Santorini really is a must. But, aside from the beautiful villages of Oia and Fira, what exactly is there to see and do in Santorini? Surprisingly, lots considering it is a relatively small island. From village exploring to island adventures to foodie experiences, here are 31 unmissable things to do in Santorini....

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Luxury hotels in Santorini: Why they are worth the splurge

17th April 2022 by Eat Sleep Breathe Travel

When it comes to exploring the Greek Islands, Santorini seems to be at the top of everyone’s list, for fairly obvious reasons. This postcard-perfect island is stunning. The white villages perched on the rocky clifftops look like they popped off the pages of a children’s storybook and the vibrant blue domes contrasting against the white buildings are brilliant against a backdrop of the equally blue sea and sky. Santorini is romantic fairytale that everyone wants to, and should, experience...

Weather in Santorini

Our month-by-month guide to the weather and climate in Santorini

14.5

Santorini weather in

January
14.7

Santorini weather in

February
15.2

Santorini weather in

March
17.0

Santorini weather in

April
20.1

Santorini weather in

May
23.4

Santorini weather in

June
25.4

Santorini weather in

July
25.9

Santorini weather in

August
24.4

Santorini weather in

September
21.6

Santorini weather in

October
19.0

Santorini weather in

November
16.2

Santorini weather in

December