Best Time to Visit Greece: Month-by-Month Guide
Greece has two distinct tourist seasons and two shoulder seasons — and the difference in experience between them is dramatic.
Month-by-Month Summary
| Month | Weather | Crowds | Notes |
|---|---|---|---|
| January | Cool, 8–13°C Athens | Very low | Museums open, islands quiet, skiing Parnassos |
| February | Cool, 10–14°C | Very low | Carnival season in Patras (biggest in Greece) |
| March | Mild, 13–17°C | Low | Wildflowers, sites open, excellent for hiking |
| April | Warm, 17–22°C | Low–moderate | Easter (major event), sea 17–18°C, best for Meteora |
| May | Warm, 22–27°C | Moderate | Best month overall — warm, clear, uncrowded |
| June | Hot, 27–33°C | Moderate–high | Sea 22–23°C, music festivals begin |
| July | Hot, 32–36°C | Very high | Meltemi winds in Aegean, peak season begins |
| August | Very hot, 32–38°C | Extreme | Peak of peak — book months ahead |
| September | Warm, 27–32°C | Moderate | Best month for islands — warm sea, manageable crowds |
| October | Mild, 20–25°C | Low | Good for mainland, islands closing |
| November | Cool, 15–20°C | Very low | Islands shut; Athens works well |
| December | Cool, 12–16°C | Very low | Christmas in Athens; islands closed |
Spring (March–May): The Best Season for Most Visitors
March brings wildflowers to the Greek countryside — the hills around Delphi, the Meteora plains, and the Peloponnese are carpeted in anemones, poppies, and cistus. Temperatures are mild (13–17°C in Athens, warmer in Crete). The archaeological sites are uncrowded. Easter (date varies year to year) is the most important event in the Greek religious calendar — if you can time your visit to coincide, the Easter services and midnight processions are extraordinary, particularly in smaller towns and on islands like Hydra.
April is excellent — daytime temperatures reach 20–22°C in Athens and 22–25°C in Crete. The sea is still cool for swimming (17–18°C) but comfortable for the adventurous. The Acropolis and Delphi are a fraction of their August crowds.
May is the consensus best month. Temperatures are warm (22–27°C), the sea reaches 20–22°C (swimmable for most people), flowers are still out, and the tourist season has not yet peaked. May is particularly good for: hiking the Samaria Gorge in Crete (which opens in May), the Cyclades (Paros, Naxos, Milos), and archaeological sites throughout the mainland.
Summer (June–August): Peak Season
June is still excellent — the season ramps up but the extreme August crowds have not yet arrived. Temperatures reach 30–33°C in Athens; the sea is 22–23°C throughout the Aegean. The Thessaloniki Film Festival runs in September but major open-air events begin in June.
July and August are hot, crowded, and expensive — but they are also when Greece is most alive. The Epidaurus Festival (ancient theatre performances June–August), Athens and Epidaurus Festival, music events on the islands. The Meltemi (a northerly wind) blows hard across the Cyclades and Aegean in July–August — good for windsurfers and sailors, uncomfortable on exposed beaches. Book accommodation 3–4 months ahead for July–August in Santorini, Mykonos, or Rhodes.
August 15 (Assumption of the Virgin): A national holiday — the day Greeks travel en masse. Ferries and buses are fully booked. Book everything in advance if you are travelling on or around this date.
Autumn (September–October): The Best Season for Islands
September is arguably the best month for island visitors who want to swim — the sea is at its warmest (24–26°C in the Aegean), temperatures have dropped slightly from August (28–32°C), and the tourist crowds thin significantly after the first week. Prices drop 20–30% from August levels. Accommodation is easier to find. September in Santorini, Mykonos, or Crete has nearly all the advantages of August with none of the extreme congestion.
October is excellent for Athens, Thessaloniki, Delphi, Olympia, and Meteora — mild temperatures (20–25°C), virtually no queues, and full opening hours at sites. The islands begin closing: Mykonos and Santorini typically operate until late October; smaller Cycladic islands may close by mid-October.
Winter (November–March): For City Visits
Athens and Thessaloniki work well in winter — all the major museums and sites remain open (with reduced hours), and the cities have their own cultural life: concerts, football, theatre. Hotel prices are at their lowest. Temperatures are mild by northern European standards (10–16°C December–February in Athens).
The islands are largely closed November–April. Ferry services run reduced schedules. Rhodes and Crete have the mildest winter climates and remain partially functional; the smaller Cycladic islands (Mykonos, Paros, Naxos) are essentially shut.
Skiing: Mount Parnassos (near Delphi) and Pelion (near Volos) have ski resorts operating approximately December–March. A novel combination: ski in the morning, visit Delphi in the afternoon.
What Stays Open Year-Round
- Athens: Acropolis, National Archaeological Museum, Acropolis Museum — all year
- Thessaloniki: White Tower, Byzantine churches — all year
- Delphi, Olympia, Mycenae: all year (reduced hours November–March)
- Major island capitals (Rhodes Old Town, Corfu Town, Heraklion) — all year
- Domestic flights Athens–islands — all year, but greatly reduced in winter
Book Greece tours and activities for any season with GetYourGuide.
Frequently Asked Questions
- What is the best month to visit Greece?
- May and September are generally the best months — warm enough to swim (sea temperature 22–25°C), significantly fewer crowds than July–August, and prices 20–40% lower than peak season. June is also excellent on the mainland and for Crete; October works well for culture-focused trips and city visits.
- Is Greece good in October?
- October is excellent for Athens, Thessaloniki, and mainland sites (Delphi, Olympia, Meteora) — warm enough for light clothing (18–23°C), few tourists, and all sites open. The Aegean islands begin closing down in mid-October; Crete and Rhodes stay open longest. Swimming is still possible in early October (sea temperature around 22°C).
- How crowded is Greece in August?
- Very. August is the peak of peak season — Santorini and Mykonos are extremely congested, accommodation is booked months in advance, and the Acropolis and Delphi get thousands of visitors per day. Greek families also holiday in August (the 15th of August, the Assumption of the Virgin, is a national holiday and a major travel date). If you must go in August, book at least 3–4 months ahead.
- Can you visit Greece in winter?
- Athens and Thessaloniki work well in winter — all sites open (reduced hours), few tourists, and prices at their lowest. The islands are mostly closed November–April; ferries run reduced schedules; many restaurants and hotels shut. Skiing is possible at Mount Parnassos (near Delphi) and Pelion from December–March.