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

Quick filters

10 best Greek Islands tour packages in September

Quick filters

View Map
City & Culture
Greece Islands w/4 Star stays & fast Ferries
4.8 (24 reviews)
"This itinerary gave us enough structure without making us feel rushed."
Kreg, traveled in May
Duration
9 days
Destinations
Athens, Santorini, Palea Kameni Island, Nea Kameni Island,Crete+1 more
Age Range
All Ages Welcome
Islands
Greek Islands
Operated in
English
Operator
Wonderful Holidays UK
9% Off
From $2,299
US$2,092per person
Sign up to unlock savings
Price based on Private Double Room
18 Sep, 2026
10 spaces left
20 Sep, 2026
10 spaces left
View tour

View Map
City & Culture
London Crete and Santorini with meals and drinks
4.0 (1 review)
Duration
9 days
Destinations
London, Crete, Santorini, Athens
Age Range
All Ages Welcome
Islands
Greek Islands
Operated in
English
Operator
Wanderful Holidays LLC
13% Off
From $2,699
US$2,348per person
Sign up to unlock savings
Price based on Private Double Room
18 Sep, 2026
10 spaces left
19 Sep, 2026
10 spaces left
View tour
View Map
Ancient Wonders
Greece Culture History Sights with Santorini Catamaran tour
5.0 (2 reviews)
"It was all well organized, and they provided good communication. Beautiful trip!"
Kendra, traveled in May
Duration
7 days
Destinations
Athens, Santorini, Oia
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceSantoriniAthens Santorini & Mykonos+4 more
Operated in
English
Operator
Wanderful Holidays LLC
13% Off
From $1,599
US$1,391per person
Sign up to unlock savings
Price based on Private Double Room
15 Sep, 2026
10 spaces left
17 Sep, 2026
10 spaces left
View tour
View Map
Ancient Wonders
8-Day Exploring Crete Group Tour from Heraklion
4.5 (4 reviews)
"We would definitely go with TUI again. The room was great."
Allan, traveled in October
Duration
8 days
Destinations
Heraklion, Kato Gouves, Hersonissos, Spinalonga, Elounda,Knossos,Chania,Rethymnon,Kastamonítsa,Krassi+5 more
Age Range
All Ages Welcome
Islands
Greek Islands Crete
Operated in
English
Operator
Destination Services Greece
13% Off
No departure dates available
View tour
View Map
City & Culture
Skiathos, Skopelos, Mamma Mia!
Duration
8 days
Destinations
Skiathos, Skopelos, Glóssa
Age Range
All Ages Welcome
Regions
Greek IslandsSporades IslandsAegean IslandsCentral Greece+3 more
Operated in
English
Operator
Worldee
13% Off
From
US$320per person
+$871 upfront costs
Sign up to unlock savings
Price based on Private Double Room
20 Sep, 2026
5 spaces left
21 Sep, 2026
5 spaces left
- Booking needs min. 2 travelers
View tour
View Map
Road Trip & Self-Drive
Discovering Crete, Self-drive
4.3 (3 reviews)
"The car was ideal to suit our needs, and the hotels were lovely. There is excellent value for money, and I would use this operator again."
Renee, traveled in April
Duration
8 days
Destinations
Heraklion, Knossos, Chania, Elafonisi, Rethymnon,Agios Nikolaos,Elounda,Spinalonga,Sitia+4 more
Age Range
All Ages Welcome
Islands
Greek Islands Crete
Operated in
English
Operator
Destination Services Greece
10% Off
From $619
US$557per person
Sign up to unlock savings
Price based on Private Double Room
19 Sep, 2026
10 spaces left
20 Sep, 2026
10 spaces left
View tour
View Map
Island Hopping
2 Greek Islands Tour - 5 Days - Paros & Santorini - Premium
4.8 (46 reviews)
"Everything was perfect"
Maryanne, traveled in September
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 $2,426
US$1,819per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
City & Culture
Greek Island Dream Paros, Naxos & Santorini- 7 Days (Self-Guided Package)
5.0 (10 reviews)
"Everything was so smooth! The hotel staff were friendly and welcoming."
Peter, traveled in April
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 $2,329
US$1,747per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
Island Hopping
Paros, Naxos, Santorini & Milos with Guided Tours - Premium
4.5 (4 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 $4,024
US$3,421per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
Island Hopping
Mykonos, Santorini & Athens Experience - Standard
5.0 (13 reviews)
"Everything was very organized and ran smoothly. Each person that we interacted with on the trip was extremely helpful."
Susan, traveled in September
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
35% Off
From $2,593
US$1,685per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
Island Hopping
Cultural Athens & Island Hopping Mykonos - Santorini (Self-guided)
4.6 (106 reviews)
"Every step of the journey was planned and spelled out in the itinerary provided to me beforehand."
Lynnmarie, traveled in June
Duration
7 days
Destinations
Athens, Mykonos, Santorini, Oia
Age Range
All Ages Welcome
Regions
Greek IslandsAegean IslandsCyclades GreeceSantoriniAthens Santorini & Mykonos+4 more
Operated in
English, German,French,Dutch+2 more
Operator
Dot Travel
15% Off
From $1,151
US$978per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
Ancient Wonders
Treasures of Crete
3.9 (18 reviews)
"Everything was well coordinated. The hotel was quiet but close to the water. We had a great time!!!"
Olympia, traveled in October
Duration
7 days
Destinations
Heraklion, Kato Gouves, Hersonissos, Spinalonga, Elounda,Knossos,Chania,Rethymnon,Kastamonítsa+4 more
Age Range
All Ages Welcome
Islands
Greek Islands Crete
Operated in
English
Operator
Destination Services Greece
10% Off
From $983
US$884per person
Sign up to unlock savings
Price based on Private Double Room
22 Sep, 2026
9 spaces left
29 Sep, 2026
10 spaces left
View tour
View Map
Ancient Wonders
The Labyrinth of Crete
4.2 (15 reviews)
"Everything was very well organised and the tours we made were very interesting or in beautiful nature."
Martine, traveled in September
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 $602
US$542per person
Sign up to unlock savings
Price based on Private Double Room
20 Sep, 2026
10 spaces left
23 Sep, 2026
8 spaces left
View tour
View Map
Our most booked and loved tours
Best Seller
Island Hopping
Best of Greece (15 days) Athens & 4 Islands in 15 days (Self-Guided)
4.5 (71 reviews) award winner
"The trip was flawless."
Candice, traveled in May
Duration
15 days
Destinations
Athens, Syros, Mykonos, Delos, Santorini, Oia, Perissa,Akrotiri,Crete,Heraklion,Knossos,Chania,Samariá+6 more
Age Range
Ages 12+
Islands
Greek IslandsCyclades Greece+1 more
Operated in
English, German,French,Dutch+2 more
Operator
Dot Travel
40% Off
From $2,314
US$1,388per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour
View Map
Island Hopping
Athens, Santorini & Mykonos with 3 Guided Tours | SemiPrivate | 10 Days
4.6 (125 reviews)
"It was very reliable with transportation pick ups and the drivers were so hospitable."
Teresa, traveled in October
Duration
10 days
Destinations
Athens, Piraeus, Mykonos, Santorini, Thera
Age Range
All Ages Welcome
Regions
Greek IslandsCyclades GreeceAthens Santorini & Mykonos+2 more
Operated in
English, Spanish
Operator
Travel Zone
40% Off
From $3,389
US$2,034per person
Sign up to unlock savings
Price based on Private Double Room
14 Sep, 2026
10+ spaces left
15 Sep, 2026
10+ spaces left
View tour