May in Greece marks the beginning of the shoulder season, offering a picturesque blend of blooming landscapes, mild temperatures, and fewer crowds. This Mediterranean gem comes alive with spring flowers, clear skies, and a calendar of exciting cultural events—making it a wonderful time to visit before the summer rush.
Greece Weather in May
May brings warm, sunny days and mild evenings, perfect for exploring the outdoors or dining al fresco. Daytime temperatures typically range from 18°C to 27°C (64°F to 81°F) depending on the region. Athens and southern islands like Crete or Rhodes experience warmer conditions, while northern parts like Thessaloniki remain a bit cooler.
You’ll enjoy 8 to 10 hours of sunshine daily, with very little rainfall-typically 10-30 mm spread across a few light showers. The sea temperature starts becoming swimmable in May, averaging 18°C to 21°C (64°F to 70°F). It may still feel cool but is pleasant enough for a refreshing dip, especially in the southern islands.
While Greece’s famous party scene is quieter this month, weekend nightlife in bigger cities and islands like Mykonos is lively, yet relaxed.
Regional Weather Breakdown in May
- Athens & Southern Greece: 17–27°C, low rainfall, sunny skies
- Greek Islands (Santorini, Crete, Naxos): 18–25°C, sea ~20°C
- Northern Greece (Thessaloniki, Meteora): 15–22°C, cooler evenings
- Mountainous areas: Still cool (~10–20°C) but accessible for hikes
Crowds and Prices in May
May is still a relatively calm month compared to the peak tourist season. You’ll find fewer crowds at major sites, shorter queues, and a more relaxed pace across the country. Prices for accommodation and flights are reasonable, offering excellent value without the chaos of summer.
However, since May is growing in popularity, it’s best to book in advance for better deals.
Things to Do in Greece in May
Island Hopping in Greece
May is perfect for discovering Greece’s islands-without the summer rush. Ferries start running frequently, and places like Paros, Naxos, Santorini, and Mykonos offer a stunning mix of beaches, traditional towns, and scenic views.
Wildflower Walks
Spring is in full bloom! Explore the hills of Crete, Mount Taygetos in the Peloponnese, or national parks like Vikos Gorge and Mount Olympus-ideal for hiking among colorful wildflowers.
Water Activities in Greece in May
The sea may be cool, but it’s great for snorkeling, scuba diving, and boat tours. Avoid the heavy summer tourist crowds while still enjoying crystal-clear waters.
Bird Watching in Greece
Head to Lake Kerkini or the Evros Delta, two of Europe’s top birdwatching sites, to spot flamingos, pelicans, and herons during their migratory stopovers.
Cultural Events & Concerts
Athens and Thessaloniki offer a variety of open-air concerts and local festivals. You may also catch early events from the Athens Epidaurus Festival toward late May.
What to Pack
- Light cotton clothes & layers
- A light jacket or windbreaker for breezy evenings
- Swimsuit & sunscreen
- Comfortable walking shoes (especially for ruins and hikes)