Santorini weather

Our guide to the weather in Santorini during September

25

Average high

6

UV Index

8mm

Month rainfall

24

Sea temperature

Santorini is blessed with a wonderful Mediterranean climate and enjoys hot, dry summer sunshine. We've looked at the most up-to-date weather data for Santorini, covering the last 12 years up to 2021, 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 September.

How warm is it in Santorini during September?

The temperature is extremely stable in September with average highs of 25℃ and lows just 1℃ lower at 23℃. 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 September?

On average, there will be 4 rainy days during the month, amounting to 7.8mm in total. That's almost nothing at all, therefore rain isn't something we think you need to consider. There's a small chance that you'll catch a thunderstorm during your trip.

How warm is the sea in Santorini during September?

The water temperature around Santorini reaches a pleasant 24℃ during September. While generally considered warm, some people might find it a little on the cool side on entering the water.

10 September 2022 | 7 nights | 2 people
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Greece: Athens, Santorini & floating monasteries tour w/flights & transfers (save 35%)
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Books inspired by Santorini

Our hand-picked selection of books to get you in the mood for your Santorini holiday

Secrets of Santorini

Patricia Wilson

A mother and daughter come back together after years of separation. Perfectly transports the reader to the stunning paradise setting of Santorini

One Summer in Santorini

Sandy Barker

The perfect summer Greek Island holiday read. This Shirley Valentine-esque novel focuses on Sarah who embarks on a sailing holiday from Santorini. Sarcastic, temperamental and vulnerable, you can't help but like her. You'll be longing to follow in her footsteps and book a holiday to Greece by the end.

Santorini Blog posts

From the UK's most popular travel bloggers

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12th March 2021 by PommieTravels

Best places to stay in Santorini

Santorini is a magical greek island that many people visit at least once in their lifetime. The island is renowned for its white-washed villages, picturesque sunsets, and blue domed churches. The architecture is typically Cycladic, with a fusion of traditional Greek and Roman influences. Whether you’re headed to Santorini for a romantic weekend getaway, a relaxing vacation with the family, you’ll need to find accommodations that fit your needs and budget. We recommend that you combine this...

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6th February 2020 by PommieTravels

What to do in Santorini

Splintered by a volcanic eruption that took place eons ago, Santorini is one of Greece’s most ruggedly beautiful islands. It’s a destination defined by its views, wines, and its black sand beaches. It offers much to the curious traveller, but sadly, it’s often impossible to do everything in one visit. Just booked a flight to Santorini? Need suggestions on how to make your upcoming holiday special? In this blog, we’ll share our best recommendations.  ...

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10th December 2019 by Stoked to Travel

Greek Island hopping itinerary: Athens, Santorini and Milos

Choosing which islands to visit for a Greek island-hopping itinerary can be quite a daunting (but exciting) challenge. With more than 6,000 Greek islands to pick between, it’s not the easiest task for anyone who is even the slightest bit indecisive. If you look on Google for answers, it’s even more overwhelming. A quick search of ‘best islands to visit in Greece’, and you’ll still get a list of 20 or so islands each sounding so beautiful and also slightly similar. So it doesn’t end...

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18th September 2019 by Stoked to Travel

Santorini on a budget – Free things to do in Santorini

The dreamy Greek island of Santorini is considered one of the most beautiful places to visit in the world. In particular, it’s the town of Oia in the northwestern corner of the island that is the picture-perfect postcard image of Santorini. Oia is Greek town that has become famous around the world. Further, it’s one of the world’s most popular honeymoon destinations. The island really is perfect for couples and Santorini has got to be one of the most romantic places in the world. With...

Weather in Santorini

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

14.7

Santorini weather in

January
15.0

Santorini weather in

February
15.7

Santorini weather in

March
17.2

Santorini weather in

April
20.2

Santorini weather in

May
23.5

Santorini weather in

June
25.5

Santorini weather in

July
26.0

Santorini weather in

August
24.6

Santorini weather in

September
21.9

Santorini weather in

October
19.1

Santorini weather in

November
16.4

Santorini weather in

December