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Warmest sea in Greece in August

632 coastal locations in Greece ranked by their typical August sea temperature. Region-wide average in August: 26.4°C. The top of the list is where to find the warmest swimming this month.

Warmest in August

Kastellorizo

28.8°C August mean in Greece

Regional August average

26.4°C

across all 632 coastal locations in Greece

Vs annual mean

+6.0°C

above the year-round regional average

What the Greece sea feels like in August

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

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

Where August fits in the year

August sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Greece month rankings:

Greece sea temperature map (live)

The map shows today's latest reading at every Greece location. The list below is based on the typical August mean, useful for trip planning weeks or months ahead.

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 warmest Greece locations in August

Sorted by the typical August mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location August mean
1 Kastellorizo Aegean Islands 28.8°C
2 Megisti (Kastellorizo) Notio Aigaio 28.8°C
3 Akrotiri Santorini 27.7°C
4 Rodos Notio Aigaio 27.7°C
5 Agathi Beach Rhodes Island 27.6°C
6 Charaki Rhodes Island 27.6°C
7 Isthmía Ionian Islands 27.6°C
8 Kalathos Rhodes Island 27.6°C
9 Káto Ássos Ionian Islands 27.6°C
10 Lardos Rhodes Island 27.6°C
11 Lékhaion Ionian Islands 27.6°C
12 Lindos Rhodes Island 27.6°C
13 Pefki Rhodes Island 27.6°C
14 Periyiálion Ionian Islands 27.6°C
15 Stegna Rhodes Island 27.6°C
16 Theotokos Rhodes Island 27.6°C
17 Tsambika Beach Rhodes Island 27.6°C
18 Vrakhátion Ionian Islands 27.6°C
19 Pásion Ionian Islands 27.5°C
20 Zevgolatió Ionian Islands 27.5°C
21 Kalochórion Ionian Islands 27.3°C
22 Lachania Rhodes Island 27.3°C
23 Macheria Rhodes Island 27.3°C
24 Néoi Épiváton Ionian Islands 27.3°C
25 Prasonisi Rhodes Island 27.3°C
Show 25 more ▸
26 Finikounda Peloponnese 27.3°C
27 Koroni Peloponnese 27.3°C
28 Makrýgialos Ionian Islands 27.3°C
29 Kalamata Peloponnese 27.3°C
30 Afandou Rhodes Island 27.3°C
31 Ammoudes Rhodes Island 27.3°C
32 Faliraki Rhodes Island 27.3°C
33 Ialysos Rhodes Island 27.3°C
34 Ixia Rhodes Island 27.3°C
35 Kalithea Rhodes Island 27.3°C
36 Kolymbia Rhodes Island 27.3°C
37 Kremasti Rhodes Island 27.3°C
38 Petaloudes Rhodes Island 27.3°C
39 Rhodes Rhodes Island 27.3°C
40 Soroni Rhodes Island 27.3°C
41 Theologos Rhodes Island 27.3°C
42 Vagies Rhodes Island 27.3°C
43 Corinth Peloponnese 27.3°C
44 Kardamyli Peloponnese 27.3°C
45 Loutraki Peloponnese 27.3°C
46 Perigiali Peloponnese 27.3°C
47 Xylokastro Peloponnese 27.3°C
48 Floyitá Ionian Islands 27.3°C
49 Néa Pláyia Ionian Islands 27.3°C
50 Aígio Ionian Islands 27.3°C

Coldest 10 in Greece in August

Same data the other way. Helpful if you want to know which Greece coasts to avoid for swimming in August.

# Location August mean
1 Anaxos Aegean Islands 22.8°C
2 Molyvos Aegean Islands 22.8°C
3 Míthymna Ionian Islands 23.3°C
4 Pétra Ionian Islands 23.3°C
5 Made Crete 23.6°C
6 Lesbos Aegean Islands 23.8°C
7 Mytilini Aegean Islands 23.8°C
8 Psará Ionian Islands 23.9°C
9 Chios Aegean Islands 23.9°C
10 Amorgos island Cyclades 24.1°C

More on this region