Weather in Nisyros in May
In Nisyros, May brings late-spring weather that is pleasantly warm and almost completely dry. Average highs reach 24°C / 74°F, with lows of around 18°C / 64°F. In the water, expect around 19°C / 66°F, refreshing for some, but too cool for most. Rain is rare, with only 1 wet day in an average May. Nisyros is a round volcanic island, and its crater floor can feel much hotter than the coast on still days. Weather fronts become rarer as the season goes on, and calm, clear days take over. You get about 14 hours of daylight a day, leaving long, light evenings. Pack layers: T-shirts for the day and a light jacket or sweater for the evenings. 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 Nisyros in May
At around 19°C / 67°F, the sea in Nisyros is swimmable in May if you don't mind a chill. For warm-water swimming, aim for July, August and September, when the sea is at its best. Beach facilities are only partly open at this time of year. The sea is usually at its calmest early in the morning. A short wetsuit helps if you feel the cold.
Crowds & Prices in Nisyros in May
Crowds in Nisyros are moderate in May, with plenty of space at the main sights and beaches. You'll find better deals on rooms and car hire than in July and August. Early mornings and late afternoons are the quietest times at popular sights. Staying slightly outside the main town usually means better value and more space. Booking a few weeks ahead is usually enough.
What's Open in Nisyros in May
Ferry services between Kos and Nisyros are building up in May. Nearly all hotels, tavernas and beach bars are open by May. Museums and sites are open on extended summer hours. Most sites close on Easter Sunday and 1 May. Boat trips and excursions run regularly, weather permitting. Shops in tourist areas often stay open into the evening. Opening hours are long, with many tavernas serving until late.
Festivals & Holidays in Nisyros 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 Nisyros 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 Nisyros?
May is a lovely time for Nisyros if you want warm, sunny weather without the summer crowds. In numbers: highs of about 24°C / 74°F, lows of 18°C / 64°F and rain on around 1 day in a typical May. It's ideal for walking, sightseeing and walking into the volcano. 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, October or November instead.
Frequently Asked Questions
What time does the sun set in Nisyros in May?
In early May, the sun sets in Nisyros at around 8:00 pm. By mid-month it's around 8:10 pm, and by the end of May around 8:20 pm. All times are Greek local time. The long evenings leave plenty of daylight after the heat of the day.
Is it hot in Nisyros in May?
Not usually. May is warm rather than hot, with long, sunny days that are comfortable for sightseeing and walking. Rain becomes rare, but evenings can still feel cool, especially when the wind picks up, so bring a light layer. The real summer heat usually arrives later.
Can I visit the Stefanos volcanic crater in May?
Yes, and May is a lovely time to see it, with comfortable temperatures and fewer visitors than in summer. You can walk down onto the crater floor.
Do I need a car on Nisyros in May?
It helps. Bus timetables are lighter in May than in summer, so a car or scooter makes it easier to reach villages and beaches beyond Mandraki.
Is May or June better for visiting Nisyros?
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.
Nisyros Weather by Month
