Greece Weather in September
Season: summer
In short: bearably hot, cloudy, big temperature difference between day and night|
Meteora with Monasteries on the Mountains
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Entering September, the last month of summer, it is no longer as burning hot as in mid-summer. The temperature gradually drops with widening difference between day and night. The average maximum temperature during the day is 29℃ (84.2℉) and the minimum at night is 16℃ (60.8℉). The sunlight hours also decrease, but most places are still bathed in the sun for 11 hours a day. The sea temperature is about 26℃ (78.8℉) averagely, suitable for water activities. By mid-to-late September, Greece enjoys a favorable weather. It is often warm with gentle breeze and gets cool after the sun sets. The cloudy days increase, but it does not rain much, with an average precipitation of 20mm (0.8in).
Why Travel to Greece in September
Pleasant climate: In this month, it is bearably hot during the day and cool at night with little rainfall in Greece, which can be a great time to go on an outdoor trip.Less tourists: By mid-September, the summer vacation is over, and most tourists will leave the Greek islands and go back to work or school. The tourists will decrease greatly, making it possible for a light-paced and less-crowded holiday.
What to Wear and Pack
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During the day
Comfortable and cool summer clothes are advised at daytime. T-shirts, shorts, skirts and summer dress are good choices. For long walk during the trip, it is recommended to wear breathable shoes such as sandals and casual shoes. Besides, sun protection items are needed such as sunhats and sunscreen cream when the sun shines brightly at noon.
At night
As it is cool and often windy after the sun sets, short shirts and light pants with a thin overcoat are suitable for evening activities.
Best Things to Do in Greece in September
Tourism Rate:Visiting Mediterranean Islands
If you want to visit Mediterranean islands but do not want to be bothered by crowds of tourists, you can schedule your holiday in September 2025 when the tourist high season has ended. At that time, the islands are getting relatively quiet, and you can fully enjoy yourself on beaches. You can lie down to bask in the sun and appreciate the stunning views of the sea in breezing wind. The sea temperature is about 26℃ (78.8℉) averagely; you can choose to do some water sports around noon, but it is not advisable in the morning and evening when it is not warm.Santorini, Crete and Mykonos are popular islands in Greece, where you can see many unique beaches such as the black beach, red beach, pink beach and golden beach. On some islands with fewer tourists such as Zakynthos, Rhodes, Corfu, Naxos and Milos, you may have the whole beach to yourself if coming in September.
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Enjoy Yourself on the Mediterranean Beach
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Culture Tours to Historical Destinations
As hot waves have left, you can enjoy a comfortable culture tour in mild September. Besides, the third Sunday in this month is the European Heritage Day when all historical heritage sites and museums in Greece are open to visitors free of charge. Scheduling your trip at that time will give you the best travel experience with minimal cost.The culture trip can start with Athens. The Acropolis of Athens is a must-go destination, where you can fully learn about Greek history by visiting Temple of Athena Nike, Parthenon, Acropolis Museum, etc. National Archaeological Museum, Ancient Agora and Ancient Hadrian’s Arch are also worth visiting. Moving on to Thessaloniki, you have the chance to visit ancient buildings such as White Tower, Roman Agora, Hagios Demetrios, Aristotelous Square and Saint Sophia Cathedral. Archaeological Site of Delphi, considered as the “center of the world” by ancient Greeks is recommended. Besides, Archaeological Site of Olympia, ancient monasteries in Meteora and Knossos Palace in Crete are waiting for your exploration, too.
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At the Archaeological Site of Delphi
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Tip for Traveling to Greece in September
At the end of the month, some service places for tourists are likely to prepare for closing because the peak season ends.
Weather of Major Greece Cities in September
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City |
Temp |
Rainfall (mm) |
Humidity (%) |
Sunrise / Sunset |
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Athens |
21 - 29℃ (69.8 - 84.2℉) |
21.7 |
51 |
6:54 - 7:19 / 19:10 - 19:55 |
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Santorini |
22 - 28℃ (71.6 - 82.4℉) | 9.7 | 64 |
6:49 - 7:12 / 19:03 - 19:46 |
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Patra |
18 - 28℃ (64.4 - 82.4℉) | 23.8 | 68 |
7:02 - 7:27 / 19:18 - 20:03 |
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Delphi |
16 - 30℃ (60.8 - 86℉) | 26.4 | 58 |
6:58 - 7:24 / 19:15 - 20:00 |
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Olympia |
17 - 28℃ (62.6 - 82.4℉) | 40.9 | 70 |
7:03 - 7:27 / 19:18 - 20:03 |
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Crete |
20 - 27℃ (68 - 80.6℉) | 12.2 | 67 |
6:52 - 7:14 / 19:06 - 19:47 |
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Rhodes |
23 - 28℃ (73.4 - 82.4℉) | 7.2 | 67 |
6:38 - 7:00 / 18:52 - 19:35 |
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Mykonos |
20 - 28℃ (68 - 82.4℉) | 53.8 | 64 |
6:48 - 7:12 / 19:04 - 19:48 |
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Corfu |
18 - 28℃ (64.4 - 82.4℉) | 90.4 | 73 |
7:08 - 7:35 / 19:25 - 20:12 |
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Thessaloniki |
17 - 27℃ (62.6 - 80.6℉) | 35.6 | 61 |
6:54 - 7:23 / 19:12 - 20:01 |
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Zakynthos |
19 - 29℃ (66.2 - 84.2℉) | 51.0 | 65 |
7:06 - 7:30 / 19:21 - 20:06 |
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Meteora |
21 - 29℃ (69.8 - 84.2℉) | 21.7 | 51 |
6:53 - 7:19 / 19:09 - 19:55 |