Temperature Santorini Greece

Averages for Santorini in May

Weather lowdown

May is one of the best times of the year to visit Santorini, Greece, when the temperatures are high and the chance of rain is low. Not only is the weather great during this month, but the island will also be relatively quiet compared to the busy summer months, resulting in cheaper accommodation, flight, restaurant and attraction prices.

Throughout the month, the average temperature for Santorini begins at 18°C on May 1st and works its way up until it reaches 22°C by May 31st. Daily highs and lows follow the same pattern, increasing from 21°C to 25°C and from 15°C to 19°C, respectively, as the month progresses.

With average temperatures as warm as these, you’ll need to pack plenty of light and airy clothing to ensure you’re comfortable whilst on holiday. You won’t need much more than shorts, skirts, dresses, t-shirts and swimming gear during the daytime, although you might want to bring a pair of jeans or trousers and a light jacket for the evenings, in case it’s a bit cooler than expected. Whatever the weather forecast is, make sure you pack plenty of sunglasses, hats and suntan lotion so your holiday isn’t spoiled by sunburn or heatstroke.

Although it only happens on rare occasions, temperatures can sometimes rise above 28°C or fall below 13°C during this month in Santorini. In recent times, the hottest May day ever recorded on the island saw temperatures rise up to 34°C. On the other hand, the coldest May day ever recorded in Santorini saw temperatures fall down to 9°C.

Across May, Santorini receives an average of 10.5mm of rainfall which is spread out between three rainy days. With such an insignificant amount of precipitation falling on such a small number of days, you probably won’t see as much as a drop of the wet stuff at all during your holiday in Santorini.

The probability of precipitation occurring on any given day in Santorini in May decreases as the month progresses. Rainfall is most likely to appear around May 1st, when it falls on 16% of days. On the other hand, rainfall is least likely to happen around May 31st, when it only falls on 8% of days. The most likely types of precipitation you can expect to see during your May holiday are light rain, thunderstorms and moderate rain.

Throughout May, Santorini enjoys an average of 12 hours of sunshine every day – that’s one hour more each day than in April. With so many sunshine hours to enjoy every single day, you’ll have endless opportunities to get out and about for a bit of exploring or take it easy and work on your tan by the pool or at the beach.

If you do plan on hitting the beach whilst on holiday, you’ll be pleased to hear that the average sea water temperature for the beaches in Santorini in May is 19°C. This average temperature makes May the first month of the year when it’s warm enough to go swimming. If you still think the water is a bit too cool for a dip, there are plenty of indoor and heated swimming pools around Santorini where you can enjoy a much warmer swim.

Throughout May, the length of the day in Santorini is steadily increasing, with a difference of 46 minutes between the beginning and the end of the month. May 1st is the shortest day of the month with 13:42 hours of daylight, whilst May 31st is the longest day of the month with 14:28 hours of daylight.

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