Where is the sea coldest in Greek Islands in September?

Falassarna in Greece has the coldest sea in Greek Islands in September, averaging about 25.0 °C. Vai (25.0 °C) and Preveli are the next coolest.

How many beaches in Greek Islands are warm enough to swim in September?

25 of the top 25 ranked beaches in Greek Islands average 22 °C or more in September, which most swimmers find comfortable without a wetsuit.

How are these September sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in Greek Islands in September

Where the sea is coolest across Greek Islands during September, ranked by long-term monthly average water temperature. Falassarna (Crete, Greece) is the coolest at around 25°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Falassarna
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
2
Vai
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
3
Preveli
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
4
Matala
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
5
Balos
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
6
Mylopotas
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
7
Plaka
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
8
Super Paradise
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
9
Kolymbithres
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
10
Red Beach
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
11
Sarakiniko
Cyclades · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
12
Paleokastritsa
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
13
Egremni
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
14
Antisamos
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
15
Voutoumi
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
16
Voutoumi
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
17
Tsambika
Dodecanese · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
18
Lindos Bay
Dodecanese · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
19
Antisamos Beach
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
20
Gerakas Beach
Ionian Islands · Greece · Ionian Sea
Warm — comfortable swimming
25°C
September average
21
Voulisma Beach
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
22
Chrissi Island Beach
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
23
Spinalonga Beach
Crete · Greece · Aegean Sea
Warm — comfortable swimming
25°C
September average
24
Elafonissi Beach
Crete · Greece · Mediterranean Sea
Warm — comfortable swimming
25°C
September average
25
Kommos Beach
Crete · Greece · Mediterranean Sea
Warm — comfortable swimming
25°C
September average

Coldest sea in September elsewhere

Europe North America South America Asia Africa Oceania United States United Kingdom Australia Italy Spain France Greece Mexico Portugal New Zealand Croatia Canada Ireland Thailand Indonesia Philippines Brazil Sweden Poland Denmark Norway Turkey Netherlands Germany Bulgaria Japan Cyprus Egypt India South Africa Dominican Republic Romania Costa Rica Malta Puerto Rico Bahamas Belgium Barbados South Korea Vietnam Jamaica Sri Lanka United Arab Emirates Oman US Virgin Islands Antigua and Barbuda Panama Finland Malaysia Curacao Argentina Chile Colombia Israel Tanzania Morocco Tunisia Turks and Caicos Fiji Aruba Albania Uruguay Peru Maldives Mauritius Belize Nicaragua Saint Lucia Cuba Mozambique French Polynesia Bonaire Honduras French Riviera Algarve Amalfi Coast Costa Brava Dalmatian Coast Florida Keys Great Barrier Reef Coast California Florida Hawaii New Jersey North Carolina Massachusetts South Carolina Texas New York Puerto Rico Maine Oregon Michigan Georgia Washington

Greek Islands in September — frequently asked questions

Where is the sea coldest in Greek Islands in September?: Falassarna in Greece has the coldest sea in Greek Islands in September, averaging about 25.0 °C. Vai (25.0 °C) and Preveli are the next coolest.
How many beaches in Greek Islands are warm enough to swim in September?: 25 of the top 25 ranked beaches in Greek Islands average 22 °C or more in September, which most swimmers find comfortable without a wetsuit.
How are these September sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Explore every sea temperature page

Jump straight to a country, coastal region, city, seasonal ranking or comparison.

Swimming guides

Popular beach comparisons

Cala Estreta vs Platja d'Aro Cala Estreta vs Cala Sa Tuna Cala Pola vs Platja de Lloret Platja de Sant Pol vs Platja Gran Cala Montjoi vs Platja de Pals Cala Pola vs Platja de Sant Pol Cala Estreta vs Platja de Pals Aiguablava vs Cala Estreta Cambrils Playa vs Platja de la Pineda Platja de la Pineda vs Platja Llarga Platja del Miracle vs Salou Levante Playa del Carabassí vs Playa del Postiguet Playa de San Juan vs Playa del Carabassí Playa de la Fossa vs Playa de Levante Playa de la Fossa vs Playa de Poniente Cala Finestrat vs Playa del Albir Cala el Portet vs Playa de la Fossa Cala del Moraig vs Playa del Arenal Compare any two beaches →

Freshwater swimming

All lake water temperatures (525)Live lake map Compare lakes Rivers & swimming holes Albania lakes Argentina lakes armenia lakes Australia lakes austria lakes Belgium lakes Australia rivers austria rivers Canada rivers Croatia rivers czechia rivers Finland rivers Live sea temperature map Swimming guides

Keep exploring

Live sea temperature mapEvery coast, updated hourly Warmest beaches todayLive ranking right now Compare two beachesSide-by-side swim conditions Lake water temperaturesFreshwater swimming spots Rivers & swimming holesWild swimming conditions All destinationsBrowse by country & region

Warmest sea this month

europe north america asia oceania

Coldest sea temperature in Greek Islands in September

Coldest sea in September elsewhere

Greek Islands in September — frequently asked questions

Explore every sea temperature page

Sea temperature by country

Coastal region hubs

Water temperature today by city

Warmest sea in August

Warmest sea month by month (Europe)

Coldest sea this month

Swimming guides

Popular beach comparisons

Freshwater swimming

Keep exploring

Warmest sea this month