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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Greece has a Mediterranean climate with hot, dry summers and mild, wet winters; the best travel weather is typically from May through October, when daytime highs range from 24°C to 33°C depending on the region and month.
What does the weather look like month by month?
Winter (December–February) brings cooler temperatures, especially in northern cities like Thessaloniki where highs hover near 10–14°C, while Athens and the islands stay around 14–17°C. Spring (March–May) warms quickly—by May, most of Greece sees 22–26°C—with increasing sunshine. Summer (June–August) is hot and dry: Athens often reaches 33–35°C, and popular islands like Mykonos and Santorini see 28–32°C, moderated by the meltemi wind. Autumn (September–November) remains warm into October (22–26°C across most of the mainland and islands), then cools sharply in November, especially in the north. For a detailed look at thessaloniki greece weather by month, note that it is cooler than the south year-round, with winter lows near 2°C. For those checking greece temperature by month celsius, the range is roughly 8°C in January to 33°C in July in Athens.
How does the weather vary across Greece?
Northern Greece (Thessaloniki, Halkidiki) has colder winters and slightly cooler summers than the south. The Cyclades (Mykonos, Santorini) are windier and drier, while the Ionian islands (Corfu, Kefalonia) receive more rain in winter. For santorini greece weather by month, expect highs of 28–30°C in July and August, with lower humidity than Athens. For mykonos greece weather by month, July and August are similarly warm but breezy, ideal for avoiding extreme heat. For travelers asking about greece weather by month october, this is a sweet spot: most islands and Athens still enjoy 22–26°C, with fewer crowds. For kalamata greece weather by month, the Peloponnese city stays warm into October (around 24°C) but sees more rain in November. For those converting greece weather by month fahrenheit, multiply Celsius by 1.8 and add 32—July in Athens is roughly 91°F.
What is the best month to visit Greece for good weather?
May, June, September, and October offer the best balance: warm days (24–30°C), low rain, and fewer tourists. July and August are hotter and more crowded, especially on islands like Mykonos and Santorini.
Is it warm enough to swim in Greece in October?
Yes, sea temperatures in October remain around 22–24°C in most areas, especially in the south (Crete, Rhodes). The water is still pleasant for swimming, though the air can cool in the evenings.
Does it snow in Greece in winter?
Snow is rare in coastal cities like Athens but common in the mountains and northern regions (Thessaloniki, Macedonia). The islands rarely see snow, though frost can occur at night in January and February.
Sources
For more on Canadian weather comparisons, see our Canada weather hub or check Cyprus Weather for another Mediterranean destination. For travel planning, also see Lisbon Weather November.