What is the weather like in Greek Islands during September?

September brings mild Mediterranean conditions to the Greek Islands with temperatures ranging from 20-25°C (68-77°F). The sunny days and low rainfall create perfect conditions for outdoor activities. Santorini's Caldera walk from Fira to Oia benefits from cooler temperatures while Mykonos has gentle breezes that make sailing particularly enjoyable. According to a TourRadar traveler "The weather was perfect for exploring - warm enough for swimming but not too hot for walking." Visitors can expect 8-10 hours of daily sunshine with water temperatures at 23°C (73°F) which suits activities like swimming in volcanic springs near Thirassia Island or exploring Golden Beach in Paros.

What unique events or festivals happen in Greek Islands during September?

The Greek Islands come alive with cultural celebrations during September. Visitors can experience the Santorini International Music Festival and watch local traditions at the Mykonos Harvest Festival. Paros hosts the Naval Glory Days in early September showcasing maritime traditions through music and dance. A TourRadar guest at Kallisti Hotel & Suites shared: "We were lucky to catch the wine festival in Santorini while staying at Kallisti Hotel & Suites - the combination of local culture and stunning sunset views made it unforgettable."

How much should I budget for a Greek Islands trip in September?

A standard 5-day Greek Islands tour in September runs between $1800-2100 per person including stays at properties like Belle Etoile Villas in Santorini with daily breakfast. September prices drop about 15% compared to August peak rates. A TourRadar traveler at Makarios Beach Hotel noted: "September offered great value with high-season quality but shoulder-season prices."

What are the best swimming beaches in Greek Islands during September?

September's warm waters make beach time especially pleasant across the islands. Golden Beach in Paros welcomes water sports enthusiasts while Galissas Beach in Syros offers gentle waters suited for families. A TourRadar traveler reported: "The water at Magganari Beach in Ios was crystal clear and still warm in September." Red Beach in Santorini pairs volcanic landscapes with comfortable swimming conditions. Guests at Anezina Hotel in Paros enjoy easy beach access with fewer crowds than peak summer months.

What's the best way to island-hop in the Greek Islands during September?

September's reliable ferry network makes island hopping straightforward. The common Athens-Mykonos-Santorini-Paros route offers multiple daily connections. Fresh Hotel in Athens serves as a convenient base for reaching Piraeus port. As noted by a TourRadar traveler: "The ferry connections were smooth and well-organized allowing us to maximize our time on each island." Fast ferries connect major islands in 2-4 hours while local boats to smaller islands like Thirassia provide scenic routes.

Are the Greek Islands crowded in September?

September brings a noticeable decrease in visitor numbers while keeping the islands' energy. Popular locations like Oia in Santorini and Little Venice in Mykonos become easier to explore especially later in the month. One TourRadar traveler observed: "September was perfect - we could enjoy sunset at Oia without massive crowds." Properties like Kallos Imar in Santorini and Yiannaki Hotel in Mykonos offer better availability. Major sites including the Acropolis and ancient Delos see shorter wait times making cultural visits more enjoyable.

Greek Islands Tours in September 2026

10 best Greek Islands tour packages in September

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Explorer
Greek Island Hopping (Standard)
4.8 (812 traveler reviews)
"I liked having the freedom to do excursions (which were all amazing), or have the day to myself."
Julia, traveled in May
Duration
11 days
Destinations
Athens, Mykonos, Paros, Santorini, Ios
Age Range
Ages 18-35
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
Contiki
From
US$1,825per person
Price based on Shared Room
1 Sep, 2026
7 spaces left
5 Sep, 2026
7 spaces left
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Explorer
2 Greek Islands Tour - 5 Days - Paros & Santorini - Premium
4.8 (46 traveler reviews)
"Overall very good management."
Syed, traveled in July
Duration
5 days
Destinations
Athens, Paros, Santorini
Age Range
All Ages Welcome
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
Travel Zone
25% Off
From $2,380
US$1,785per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Geluxe: Greece: Athens and Walking in the Greek Islands
Duration
10 days
Destinations
Athens, Tinos, Naxos, Paros, Santorini, Thera, Oia
Age Range
Ages 18+
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
G Adventures
25% Off
From $5,299
US$3,974per person
Price based on Private Double Room
11 Sep, 2026
2 spaces left
18 Sep, 2026
5 spaces left
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Explorer
Mykonos, Santorini & Athens Experience - Premium SemiPrivate Tour
4.8 (32 traveler reviews)
"Loved the tour itinerary and the hotels that were selected. Truly a great experience!"
pamela, traveled in April
Duration
7 days
Destinations
Athens, Mykonos, Delos, Santorini
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceMykonosAthens Santorini & Mykonos+4 more
Operated in
English, Spanish
Operator
Travel Zone
25% Off
From $3,492
US$2,619per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Mykonos & Santorini Tour - 5 Days - Premium
4.8 (25 traveler reviews)
"Our trip was magic, with brilliant itenary and it was all smooth as clock work."
Maria, traveled in September
Duration
5 days
Destinations
Athens, Mykonos, Santorini
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceMykonosAthens Santorini & Mykonos+4 more
Operated in
English, Spanish
Operator
Travel Zone
25% Off
From $2,332
US$1,749per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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In-depth Cultural
Paros, Naxos, Santorini & Milos with Guided Tours - Premium
4.5 (4 traveler reviews)
"The trip was perfect. 9 days between the islands with all hotels and tours booked."
Robert, traveled in July
Duration
9 days
Destinations
Athens, Paros, Antiparos, Naxos, Santorini, Milos
Age Range
All Ages Welcome
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
Travel Zone
15% Off
From $4,042
US$3,435per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Santorini, Paros & Naxos Islands with Guided Tours - Premium
4.3 (14 traveler reviews)
"It was an unforgetable experience, everything was perfect."
Charlie, traveled in May
Duration
7 days
Destinations
Athens, Paros, Naxos, Santorini
Age Range
All Ages Welcome
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
Travel Zone
25% Off
From $2,957
US$2,218per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Mykonos & Santorini Experience - Premium
4.7 (3 traveler reviews)
"Expectations was great. Hotel selection was excellent especially in Santorini."
CASSIM, traveled in May
Duration
5 days
Destinations
Athens, Mykonos, Delos, Santorini
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceMykonosAthens Santorini & Mykonos+4 more
Operated in
English
Operator
Travel Zone
25% Off
From $2,656
US$1,992per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Best Greek Islands Tour - 8 Days - Premium
4.6 (6 traveler reviews)
"Top-shelf destinations. Great hotels, great services, a meaningful relaxing experience."
Karen, traveled in May
Duration
8 days
Destinations
Athens, Mykonos, Santorini, Crete
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceMykonosAthens Santorini & Mykonos+4 more
Operated in
English, Spanish
Operator
Travel Zone
25% Off
From $2,649
US$1,986per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Selected Greek Islands with Santorini Sunset Cruise - Standard
5.0 (1 traveler review)
"Excellent service and communication by the tour company. Great value for money with ease of transfers and high standards of accommodation."
Mair, traveled in September
Duration
9 days
Destinations
Athens, Syros, Naxos, Santorini
Age Range
All Ages Welcome
Islands
Greek IslandsAegean IslandsCyclades Greece+2 more
Operated in
English
Operator
Travel Zone
15% Off
From $2,415
US$2,053per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Cultural Athens & Island Hopping Mykonos - Santorini (Self-guided)
4.6 (100 traveler reviews)
"From Church sites to the winery the tour is well worth the money and time. Enjoy the sunset to close the tour out."
LeRoy, traveled in June
Duration
7 days
Destinations
Athens, Mykonos, Santorini
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceMykonosAthens Santorini & Mykonos+4 more
Operated in
English, German,French,Dutch+2 more
Operator
Dot Travel
10% Off
From $1,156
US$1,041per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Greek Island Explorer
4.5 (6 traveler reviews)
"3 days in each place was perfect to get to know them and do what you want! Santorini was my favorite!"
Lisa, traveled in August
Duration
10 days
Destinations
Athens, Sounio, Santorini, Oia, Mykonos, Delos
Age Range
All Ages Welcome
Regions
Greek IslandsCyclades GreeceAthens Santorini & Mykonos+2 more
Operated in
English
Operator
Costsaver
10% Off
From $4,150
US$3,735per person
Price based on Private Double Room
9 Sep, 2026
8 spaces left
16 Sep, 2026
8 spaces left
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Explorer
MINOS: Athens, Mykonos, Santorini, Crete, and Heraklion (+sightseeing in Athens)
5.0 (1 traveler review)
Duration
9 days
Destinations
Athens, Mykonos, Santorini, Heraklion
Age Range
All Ages Welcome
Islands
Greek IslandsAegean Islands+1 more
Operated in
English
Operator
Greca
10% Off
From
US$1,884per person
Price based on Private Double Room
1 Sep, 2026
10+ spaces left
2 Sep, 2026
10+ spaces left
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Explorer
Treasures of Crete
3.9 (18 traveler reviews)
"Good hotel, good location. Good tours."
Giuseppe, traveled in September
Duration
7 days
Destinations
Heraklion, Spinalonga, Knossos, Chania, Rethymnon
Age Range
All Ages Welcome
Islands
Greek Islands CreteAegean Islands+1 more
Operated in
English
Operator
Destination Services Greece
10% Off
From $987
US$888per person
Price based on Private Double Room
1 Sep, 2026
10 spaces left
8 Sep, 2026
10 spaces left
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Explorer
The Labyrinth of Crete
4.2 (15 traveler reviews)
"From the booking staff from tourradar to the staff from Greece Katerina were excellent."
Helen, traveled in July
Duration
5 days
Destinations
Heraklion, Kato Gouves, Spinalonga, Elounda, Knossos,Krassi+1 more
Age Range
All Ages Welcome
Islands
Greek Islands CreteAegean Islands+1 more
Operated in
English
Operator
Destination Services Greece
10% Off
From $605
US$544per person
Price based on Private Double Room
2 Sep, 2026
10 spaces left
6 Sep, 2026
10 spaces left
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