Secondly, the waters in Greece never get as warm as the Caribbean. The Mediterean is much cooler. You can swim in May, especially townards the end of the month, but expect cooler water.
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Secondly, the waters in Greece never get as warm as the Caribbean. The Mediterean is much cooler. You can swim in May, especially townards the end of the month, but expect cooler water.
Head to the Athenian Riviera in May and the sea may be warm enough for many to enjoy as well. Islands like Crete and destinations in the Peloponnese are rather balmy now providing an ideal time for lounging on golden sands and swimming in the aquamarine sea.
Crete. Crete is the southernmost island in Greece and enjoys average May daytime temperatures of 23 degrees/74 Fahrenheit making it one of the warmest greek islands to visit in May. The water is usually warm enough for swimming and the weather is usually calm, with occasional showers.
The best time to visit is late spring (May) and fall (Sept–Oct). It's pleasant, with comfortable weather, no rain, and smaller crowds (except during holiday weekends). Winter (late October through mid-March) is colder, with some rainfall.
As a technicality, there is no warm 'ocean' swims in Europe (Ocean is freezing cold in May, even in Canaria islands!), only the Mediterranean sea is somehow warmish. The further south the better, so Sardinia would win out over Corsica. But it's perfectly possible to swim in either place in late May.
Best Time for Good Weather and Swimming: The warmest weather in Crete (and all the Greek islands) is between late May and early October when it's sunny, hot, and the water is perfect for swimming. Water temperature heats throughout the summer months and is warmest in August and early September.
Tourist season in Greece is roughly Easter through October. Peak season is summer, when Athens is packed with tourists, and hotel prices can be high. July and August are the hottest. The best time to visit is late spring (May) and fall (Sept–Oct).
Temperatures are starting to regularly exceed 70°F this month, as warm sunny weather predominates. There is hardly any rain, either. You'll enjoy ten daily hours of sunlight a day, and seawater temperatures have also increased to 64°F/18°C.
A packable rain jacket can also come in handy if there's a big downpour. If you like to wear shorts, throw in a comfortable pair along with one or two more warm-weather tops. Shorts are also perfect as a beach cover-up and great for hiking.
The average high in southern Athens is 25ºC in May, which cools to 14ºC at night, so you should bring a warm jumper for the evenings. The sea temperature is 19ºC, while humidity's low. There's 23mm of rain over four days, and you can expect 14 hours of daylight with ten hours of sunshine each day.
The weather in Greece in May ticks all the boxes for a dream vacation. It almost feels like summer, but not quite; there is very little rain and days are filled with blue skies and lots of sunshine. Yet, it is not the peak tourist season in the country, making it easier on your wallet.