Best Time to Visit Mainland Greece
Mainland Greece is a year-round destination – but what you want to do decides when you should come. The sea is warm from June to October, the mountains are green and full of flowers in spring and golden in autumn, and winter brings snow, fireplaces and quiet stone villages. Here is our month-by-month guide to the Peloponnese, Central Greece, Epirus, Thessaly, Macedonia and Thrace.
Month by month, region by region
Choose a region. Temperatures are long-term averages of the daily maximum; the sea temperature is the average for the month.
| Month | Max °C | Sea °C | Min °C | Rainy days | Sightseeing | Hiking | Beach |
|---|
Great time Good / with some planning Not ideal
Season by season
Spring (March – May)
Green hills, wild flowers and Easter, the biggest celebration of the Greek year. Ideal for ancient sites and for hiking – the gorges have water and the paths are lush. The sea is still cool for swimming until late May; snow can remain on the high peaks until May.
Try: the Menalon Trail, the Neda Gorge, Archaeological Peloponnese.
Summer (June – August)
Long, sunny days and a warm sea. July and August are hot in the lowlands (often above 30 °C), so plan sightseeing for the morning and the beach for the afternoon. The mountains are the best escape: Arcadia, Pelion, Epirus and Olympus are pleasantly cooler. Mid-August (around the 15th) is the busiest time of the year.
Try: Beaches of the Peloponnese, diving & snorkelling, Mount Olympus.
Autumn (September – November)
Our favourite season. The sea stays warm until October, the summer crowds are gone and the forests of Arcadia, Pelion and Epirus turn gold and red. Perfect for hiking, wine and harvest season, and sightseeing in comfortable temperatures. Rain becomes more frequent in November.
Try: the Vikos Gorge, Pelion trails, Ancient sites & beaches.
Winter (December – February)
The quiet season. Athens and the coast stay mild (around 12–14 °C), while the mountain villages get snow – stone houses, fireplaces and hearty local food. Archaeological sites and museums stay open with shorter hours. Some coastal hotels and tavernas close for the winter.
Try: Stemnitsa, Delphi day trip, Meteora day trip.
Good to know
- Easter is the most important Greek holiday, with candlelit processions on Good Friday and celebrations on Sunday. It is a wonderful time to visit a village – book early. See our events calendar.
- Mid-August (the Assumption on 15 August) is when Greeks themselves are on holiday: beaches, ferries and hotels are at their busiest.
- Mountain refuges: the main refuge on Mount Olympus (Spilios Agapitos) is open from May to October; outside this season the high mountains are for experienced, well-equipped hikers only.
- Heat: in July and August, start walks and site visits early in the morning and carry water.
- Getting around: whatever the season, our private transfers take you door to door – from the airport, the port or your hotel – with a local driver who knows the roads in every weather.
Frequently asked questions
What is the best month to visit mainland Greece?
For most travellers, late May to June and September to early October: warm weather, a swimmable sea, and comfortable temperatures for sightseeing and hiking.
When is the sea warm enough for swimming?
From about mid-June to early October, when the sea is above 22 °C. It is warmest in August and September, at around 25–26 °C. In late May and late October, only the brave will swim!
Is it too hot to hike in summer?
In the lowlands, yes, in the middle of the day. Start early, choose shaded gorges with water, or go high: Olympus, the Tymfi plateau above Papigo and Taygetos are much cooler in July and August.
Is Greece worth visiting in winter?
Yes – especially the mountain villages of Arcadia, Pelion and Epirus, which are beautiful under snow, and the archaeological sites and museums, which you can see without crowds.
Tell us when you plan to travel and what you love to do, and we will reply within 24 hours with ideas for your dates.
Climate averages: climate-data.org (Tripoli, Volos), weather2travel.com (Athens, Kalamata, Ioannina, Halkidiki, Alexandroupolis). Weather varies from year to year.