Weather in Kefalonia in May
In Kefalonia, May brings late-spring weather that is pleasantly warm and mostly dry. Expect highs of about 23°C / 74°F and overnight lows near 14°C / 58°F. In the water, expect around 19°C / 66°F, bracing, and too cool for many swimmers. Rain falls on around 3 days, adding up to about 19 mm over the month. Kefalonia is the largest Ionian island, dominated by Mount Ainos, which can see snow in winter. Spring comes with wildflowers and green hills, though western Greece still sees more showers than the Aegean. Days bring around 14 hours of daylight, leaving long, light evenings. Bring layers, with short sleeves for the day and a sweater or light jacket for later. Mornings and evenings are noticeably cooler than the middle of the day. The weather can change from one day to the next, so check the forecast before planning a long day out. It's pleasant to be outside from morning to evening, with sun protection at midday.
Swimming in Kefalonia in May
At around 19°C / 66°F, the sea in Kefalonia is swimmable in May if you don't mind a chill. The best time for swimming is July, August and September, with August usually the warmest. Try Myrtos and Antisamos for clear water. Beach facilities are only partly open at this time of year. If you feel the cold, a wetsuit top makes a difference.
Crowds & Prices in Kefalonia in May
Crowds in Kefalonia are moderate in May, with plenty of space at the main sights and beaches. Prices are noticeably lower than in high summer, and there's more choice of rooms. On cruise-ship days, the main sights are busiest between late morning and mid-afternoon. The crowds concentrate at Myrtos and Melissani Cave, so for a calmer experience, go early in the morning or explore the quieter south. You can often book at short notice, except around holidays.
What's Open in Kefalonia in May
Ferry services between Kyllini and Kefalonia are building up in May. The airport has direct flights from across Europe in the season, as well as flights from Athens. By May, almost everything has reopened for the season. Museums and sites are open on extended summer hours. Most sites close on Easter Sunday and 1 May. Shops in tourist areas often stay open into the evening.
Festivals & Holidays in Kefalonia in May
Greek Easter sometimes falls in early May, and Whit Monday, fifty days later, is another long weekend. 1 May is a public holiday, when many Greeks head out to the countryside and make wreaths of spring flowers. Locals in Kefalonia mark these dates in the traditional way, and visitors are welcome to join in. Weekends bring family outings and long lunches, and the evenings grow livelier as the days lengthen.
Is May a Good Time to Visit Kefalonia?
May is a lovely time for Kefalonia if you want warm, sunny weather without the summer crowds. Expect highs of around 23°C / 74°F, lows near 14°C / 58°F and rain on around 3 days. It's ideal for walking, sightseeing and visiting Melissani Cave. Keen swimmers may find the sea too cool, as it warms up properly later in the summer. If beach time matters most, aim for June, September or October instead.
Frequently Asked Questions
What time does the sun set in Kefalonia in May?
In early May, the sun sets in Kefalonia at around 8:30 pm. By mid-month it's around 8:40 pm, and by the end of May around 8:55 pm. All times are Greek local time. The long evenings leave plenty of daylight after the heat of the day.
Is it hot in Kefalonia in May?
Not yet. May is warm and increasingly sunny, and rain becomes rare by the end of the month. It's comfortable for walking and sightseeing, although evenings can still be cool, so bring a light layer.
Can I visit Melissani Cave in May?
Usually, yes, though opening hours in May can be shorter than in summer, so check before you go. It's a good time to visit, with shorter queues. Its underground lake is explored by rowing boat and is at its most magical when sunlight pours through the open roof around midday.
Do I need a car on Kefalonia in May?
It's the easiest way to get around. Kefalonia is spread out, and buses in May are less frequent than in summer, so a car lets you explore villages and beaches at your own pace.
Is May or June better for visiting Kefalonia?
It depends on what you want. June is warmer, the sea is better for swimming and everything is open, but crowds and prices start to climb. May is quieter, greener and cheaper, with pleasant walking weather, though the sea is still cool for many swimmers.
Kefalonia Weather by Month
