Hottest Greek islands in September

Hottest Greek islands in September

Hottest Greek islands in September are the far southeast Dodecanese and southeast Crete where summer holds on longest. Rhodes with Rhodes Town and Lindos, Karpathos with Pigadia and Olympos, Kasos, Kastellorizo off Kas, Symi, Chalki, Kos with Kos Town and Kardamena, Crete especially Ierapetra, Sitia and Makry Gialos, and Gavdos as the southernmost point in Greece average 27-30C highs with sea still at 25-26C and lighter winds than August. Rhodes, Karpathos and south Crete stay the warmest with long dry days.

Known for warm sea without peak crowds, with Anthony Quinn Bay and Tsambika on Rhodes, Apella Bay on Karpathos, Vai palm beach and Elafonissi on Crete, and calm harbor swims on Kastellorizo. Central Cyclades like Mykonos, Paros, Naxos and Santorini drop to 25-27C with stronger winds easing, while Ionian islands like Corfu, Kefalonia, Zakynthos and Lefkada are 25-27C with greener scenery and a higher chance of early autumn showers.

IslandDescription
KastellorizoSeptember max 28C min 21C high daytime 28C daytime 30C night 18C sea warmest Aegean September 27.8C Kastellorizo – farthest SE bare rock hottest September sea.
RhodesSeptember average seawater 26.8C first third sea 26.9C average 26.52C Sep 4 27.27C Lardos max day 28C – Lindos bare rock 30C south less Meltemi hottest Dodecanese September.
KarpathosSeptember same band as Rhodes 26.8C sea 27.27C Sep 4 max 28C – Apella sheltered cliff holds heat.
KasosSeptember same as Karpathos 28C max sea 26.8C flat dry near Karpathos hot September.
CreteSeptember average high 27C sea 25C Heraklion avg temp 23C highs 26C low 19C sea 25C air high 27.6C low 20.9C sea 25C sea 24C sea 25.4C – Elafonisi sand 50C Libyan Sea hottest part Crete September.
GavdosSeptember same as Crete south average high 27C sea 25C sea 24C sea 25.4C southernmost 34.8N hottest sea September southmost.
ChrissiSeptember same as Crete 27C avg high sea 25C sand 50C – south Crete cedar island.
StrongyliSeptember same as Kastellorizo 28C max 21C min sea 27.8C bare rock easternmost Greece hottest rock September.
RoSeptember same as Kastellorizo 28C max 21C min sea 27.8C near Kastellorizo hottest rock.
KosSeptember sea 24.9C average 23C highs 26C sea 25C sea remains 24.9C warmest 24.9C 1-10 Sep – flat Dodecanese hot September.
SymiSeptember same as Rhodes average seawater 26.8C sea 26.9C first third 27.27C Sep 4 enclosed harbor holds heat extreme.
ChalkiSeptember same as Rhodes 26.8C sea 26.9C near Rhodes flat hot September.
TilosSeptember same as Rhodes 26.8C sea 26.9C Livadi flat hot September Dodecanese south.
NisyrosSeptember same as Rhodes 26.8C sea 26.9C volcano crater holds heat 35C crater floor hot September.
KoufonisiSeptember max 27C sand 50C sea 24.9C low flat sand reflects hottest Cycladic sand September same as Kos 24.9C.

Hottest Greek islands in September are Rhodes 28°C and Crete 27°C — warmest shoulder month

Hottest Greek islands in September keep summer. Rhodes September 28°/24° 1 rainy day 29 sunny hours Perfect, August 30°/25° 0 days Good, June 26°/22° Perfect, July 29°/25° Good. Temperature in Rhodes September still 28°/24° perfect for swimming sea 24-25°C. Southernmost islands near Libyan Sea like Crete can get bakingly hot — Crete July 32°C daytime, September still 27-28°C daytime, sea warmest August early September.

Warmest Greek islands year-round Crete, Rhodes, Karpathos — southernmost near Libyan Sea bakingly hot. Islands such as Rhodes and Crete are ideal for sunny shoulder season getaway in May, September, or October when beaches empty of schoolkids. 7 Best Greek Islands to Visit in September Mykonos, Paros, Kos and more — Crete, Rhodes — both hottest September. Warmest weather Crete and all Greek islands between late May early October sunny hot water perfect swimming.

Karpathos located between Crete and Rhodes actually has highest temperatures all Greek Islands — even September hottest. Zakynthos probably hottest in Ionian Greece also high September.

September heat ranking — Rhodes, Crete south, Karpathos, Kos

Guide nuance: which Greek island best visit September? Crete Rhodes — Rhodes weather in September still very tolerable, winter temperatures rarely drop 5 or 6 degrees Celsius never below freezing 1 month either side July August very tolerable. Warmest part Rhodes Paul’s Bay Lindos warmest spot island often temperature can be up to 10 degrees higher than Rhodes town — so Lindos September 29-30°C possible.

Greek islands that won’t be too windy in early September — look Paxos Lefkada Ithaki Skopelos Alonissos Thassos calm — but for hottest Greek islands in September you want south: Rhodes 28°C/24°C 1 rainy day, Crete average high 27.3°C June but September 27°C with sea 23-24°C warmest August early September, Karpathos hottest temps all islands, Kos 26-27°C, Symi similar. August July September June hottest months to visit temperatures average 76-79°F — September still hottest month group.

So hottest Greek islands in September order: Rhodes 28° Perfect, Crete south 27-28° sea warmest, Karpathos highest temps, Kos 27°, Zakynthos 77°F average. Rhodes wins for September because longest hot season plus minimal rain.

Sources

Back to Greek islands Weather

The Greek Island Directory is a project of passion where a love of Crete, Data Integrity and Directories converge to create something truly special for users: Learn More.

Last Updated on September 8, 2026 by admin