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Coldest sea in Greece

632 coastal locations in Greece ranked by year-round average sea temperature, coldest first. The regional average is 20.4°C. The top of the list is where the water stays cold all year. The contrast list at the bottom shows the warmest coasts for context.

Coldest location

Made

Year-round average 13.9°C in Greece

Regional average

20.4°C

across all 632 Greece coastal locations

Coldest month

March

15.6°C region-wide average

Greece monthly average 15.6°C to 26.4°C
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  • Warmest month August 26.4°C
  • Coldest month March 15.6°C
  • Annual mean 20.4°C
  • Months above 20°C 6 of 12

Month by month across Greece

Sea temperatures in Greece swing from 15.6°C in March to 26.4°C in August on average across every coast we track. That spread of 11°C hides much bigger swings at individual locations.

Want a specific month? Pick one for a dedicated ranking:

Greece sea temperature map

Today's pin colours show the latest daily reading at every Greece location we track. Cool blues cluster around the high-latitude coasts.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest locations in Greece

Coastal locations across Greece sorted by year-round average, coldest first. Honest cold-water swimming country. Click any place for its 30-day chart, monthly profile, and 10-year history.

# Location Annual mean
1 Made Crete 13.9°C
2 Alexandroupoli Eastern Macedonia and Thrace 18.7°C
3 Anaxos Aegean Islands 18.7°C
4 Molyvos Aegean Islands 18.7°C
5 Paleopoli Samothrace 18.8°C
6 Therma Samothrace 18.8°C
7 Kamariotissa Samothrace 18.9°C
8 Platanitis Eastern Macedonia and Thrace 18.9°C
9 Fanari Eastern Macedonia and Thrace 18.9°C
10 Chrisi Akti Thassos Island 19.0°C
11 Chrisi Ammoudia Thassos Island 19.0°C
12 Golden Beach Thassos Island 19.0°C
13 Kinira Thassos Island 19.0°C
14 Skala Potamia Thassos Island 19.0°C
15 Lemnos Aegean Islands 19.0°C
16 Myrina Aegean Islands 19.0°C
17 Aliki Thassos Island 19.1°C
18 Limenaria Thassos Island 19.1°C
19 Pefkari Thassos Island 19.1°C
20 Potos Thassos Island 19.1°C
21 Skala Panagia Thassos Island 19.1°C
22 Skala Prinos Thassos Island 19.1°C
23 Trypiti Thassos Island 19.1°C
24 Keramoti Eastern Macedonia and Thrace 19.1°C
25 Skala Rahoni Thassos Island 19.1°C
Show 25 more ▸
26 Thasos Thassos Island 19.1°C
27 Néa Karváli Ionian Islands 19.2°C
28 Míthymna Ionian Islands 19.2°C
29 Pétra Ionian Islands 19.2°C
30 Néa Irakleítsa Ionian Islands 19.3°C
31 Kavala Eastern Macedonia and Thrace 19.3°C
32 Nea Iraklitsa Eastern Macedonia and Thrace 19.3°C
33 Nea Peramos Eastern Macedonia and Thrace 19.3°C
34 Ágios Efstrátios Ionian Islands 19.3°C
35 Lesbos Aegean Islands 19.4°C
36 Mytilini Aegean Islands 19.4°C
37 Athos Halkidiki 19.4°C
38 Mytilíni Ionian Islands 19.5°C
39 Andros Cyclades 19.5°C
40 Skýros Ionian Islands 19.5°C
41 Tinos Cyclades 19.5°C
42 Ammouliani Halkidiki 19.6°C
43 Asprovalta Central Macedonia 19.6°C
44 Ierissos Halkidiki 19.6°C
45 Milies Central Macedonia 19.6°C
46 Nea Roda Halkidiki 19.6°C
47 Nea Vrasna Central Macedonia 19.6°C
48 Ouranoupoli Halkidiki 19.6°C
49 Paralia Ofriniou Eastern Macedonia and Thrace 19.6°C
50 Stavros Central Macedonia 19.6°C

Warmest 10 in Greece for contrast

Same data flipped. Useful if you want to know which Greece coasts stay warmest year-round before you commit to a cold-water swim trip.

# Location Annual mean
1 Megisti (Kastellorizo) Notio Aigaio 22.6°C
2 Kastellorizo Aegean Islands 22.4°C
3 Akrotiri Santorini 22.3°C
4 Rodos Notio Aigaio 22.0°C
5 Agathi Beach Rhodes Island 22.0°C
6 Charaki Rhodes Island 22.0°C
7 Kalathos Rhodes Island 22.0°C
8 Lardos Rhodes Island 22.0°C
9 Lindos Rhodes Island 22.0°C
10 Pefki Rhodes Island 22.0°C

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