Bay in Greece with houses on mountain slopes and small ships

Weather in Greece

Travel guide

The weather in Greece is everything you dream of for a perfect vacation — sunny, warm, and wonderfully reliable. From May to October, you can expect endless blue skies and sunshine almost every day. The temperature in Greece during summer usually ranges from 82 °F to 95°F, making it ideal for swimming in crystal-clear waters, exploring ancient ruins, or relaxing with a drink by the sea. Spring and autumn bring mild, pleasant days perfect for sightseeing without the crowds. Whether you're heading to the islands or the mainland, the weather in Greece will have you reaching for your sunglasses and booking your next trip before you even leave!

Group of tourists taking selfie in front of ancient ruins in Athens, Greece

Weather in Athens

The weather in Athens is ideal for year-round travel, with long, hot summers and mild winters. Sunshine is abundant year-round, and the temperature in Athens often reaches 30°C in summer. Spring and autumn offer comfortable conditions, perfect for exploring the city’s historic sights in pleasant, warm weather.

Experience the weather in Athens on our Best of Italy and Greece tour.

Winter

December - February

Average Highs: 14-15°C
Average Lows: 7-9°C
Rain: 4-6 days per month

Spring

March - May

Average Highs: 16-25°C
Average Lows: 9-16°C
Rain: 1-4 days per month

Summer

June - August

Average Highs: 30-33°C
Average Lows: 20-23°C
Rain: 0-1 days per month

Autumn

September - November

Average Highs: 19-29°C
Average Lows: 12-20°C
Rain: 1-4 days per month
Picturesq View Of Traditional Cycladic Santorini Houses On Small Street With Flowers In Foreground Location Oia Village Santorini. Greece

Weather in Santorini

The weather in Santorini is sunny and warm for most of the year, making it perfect for scenic tours. Summers are hot and dry, with temperatures in Santorini often reaching 28–30°C. Spring and autumn provide milder temperatures and fewer crowds, ideal for exploring the island’s stunning landscapes comfortably.

Experience the weather in Santorini on our Greek Island Hopper tour.

Winter

December - February

Average Highs: 14-15°C
Average Lows: 10-11°C

Spring

March - May

Average Highs: 16-23°C
Average Lows: 11-17°C

Summer

June - August

Average Highs: 27-29°C
Average Lows: 21-23°C

Autumn

September - November

Average Highs: 19-26°C
Average Lows: 14-20°C
Restaurant tables on seaview terrace in Little Venice At Mykonos Town in Greece

Weather in Mykonos

The weather in Mykonos consists of sunny days and warm temperatures from spring through to autumn. Summers are hot and breezy, with the temperature in Mykonos often around 28–30°C. The island’s famous winds provide a refreshing touch, perfect for comfortable sightseeing and coastal excursions.

Experience the weather in Mykonos on our Greek Island Hopper tour.

Winter

December - February

Average Highs: 12-14°C
Average Lows: 9-10°C

Spring

March - May

Average Highs: 15-22°C
Average Lows: 11-16°C

Summer

June - August

Average Highs: 26-28°C
Average Lows: 20-23°C

Autumn

September - November

Average Highs: 17-25°C
Average Lows: 14-20°C
Bay with beach and rocky cliffs on Corfu, Greece

Weather in Corfu

The weather in Corfu is mild and pleasant, perfect for coach travel throughout the year. Summers are warm and sunny, with the temperature in Corfu averaging 28°C. Spring and autumn offer lush landscapes and comfortable temperatures, ideal for exploring the island’s scenic routes, traditional villages, and beautiful coastal views.

Experience the weather in Corfu on our Secrets of Greece including Corfu tour.

Winter

December - February

Average Highs: 14-15°C
Average Lows: 5-7°C
Rain: 8-10 days per month

Spring

March - May

Average Highs: 17-24°C
Average Lows: 7-14°C
Rain: 3-7 days per month

Summer

June - August

Average Highs: 29-32°C
Average Lows: 18-20°C
Rain: 1 day per month

Autumn

September - November

Average Highs: 19-24°C
Average Lows: 10-17°C
Rain: 4-10 days per month
Rows of ancient columns in Olympia, Peloponnese, Greece

Weather in Olympia

The weather in Olympia is typically warm and sunny, making each season perfect for tours of this historic site. Summers can be hot, with the temperature in Olympia often reaching 30°C. Spring and autumn bring milder conditions, ideal for exploring ancient ruins in comfort amid scenic countryside surroundings.

Experience the weather in Olympia on our Best of Greece tour.

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Unedited Feefo reviews

Trafalgar is rated 4.6 / 5 based on 130,000+ verified reviews

"Everything was A+"

“Once in a lifetime trip to Italy and Greece. The itinerary, the tour guides, the hotels, the transportation....everything was A+...we took the optional 4 day cruise through the Greek Islands which was amazing. Traflagar does it again...I will happily recommend this trip to all my family and friends.”

- Glenn W. Best of Italy and Greece

"Everyone had an excellent time"

“Our Tour Director, Stylianos was amazing. He went above and beyond to make sure everyone had an excellent time. His knowledge about each subject and area we toured was impressive. Our Driver Chris, also went over and above to accommodate the few group members that were not able to ambulate well on our tour.”

- Suzette F. Best of Greece

"Best guide I’ve ever been with on a tour"

“Ourania Panoutsou was our guide and she is the best guide I’ve ever been with on a tour. Her love for her country is obvious and she was very knowledgeable about places we visited. The tour itself was well organized and we saw historic sites that were important to us and not tourist traps. Can’t wait to go back on another trip with Trafalgar.”

- Lynn B, Best of Greece

"The sites visited in this itinerary were outstanding"

“Our tour director was knowledgeable and highly skilled in art and archeology. The sites visited in this itinerary were outstanding and presented an excellent overview of the ancient Greek civilization. The hotels were clean, and the food throughout the tour was excellent and plentiful.”

- Dana Y. Best of Greece

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Frequently Asked Questions

The best time to visit Greece is during spring (April to June) and autumn (September to October), when the weather is warm, crowds are smaller, and conditions are ideal for sightseeing and coach tours. However, a huge benefit of a coach tour is that you will be travelling in a air-conditioned coach which means that your Greece tour is comfortable even during the hotter summer months.

July is typically the hottest month in Greece, with average temperatures often exceeding 30°C, especially in southern regions and the islands.

Greece enjoys a high number of sunny days, especially from May to September, but it's not always sunny. Occasional rain or overcast days can occur, particularly in winter. Greece has a warm, sunny climate and enjoys more than 250 days of sunshine a year on average.

Yes, it does snow in Greece, mainly in mountainous areas and northern regions which experience an average of 130 snowy days per year. Snow is rare in coastal and island areas.

The rainy season in Greece typically occurs from November to February, with the western part of the country and the Ionian Islands receiving the most rainfall. There are an average of 103 days per year with measurable rainfall (more than 0.1 mm). This translates to roughly 8 rainy days per month. The driest month is July, with an average of 4 mm of rain.

In winter, temperatures in Greece can drop to 0°C or below in the mountains and northern regions. However, coastal and southern areas usually remain mild, with daytime temperatures around 10–15°C.

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