Generally the liquid is water and the fluid above the liquid is air. The molecules within the liquid attract each other and at the interface there are more attractive forces towards the bulk of the liquid than there are towards the adjacent gas molecules. The molecular forces tend to pull into the fluid bulk.
Weather lowdown. Despite the fact that the month of September in Athens can produce summer-like temperatures, the weather starts to cool off significantly in October, and especially at night. The average temperature this month is 19Â°C (66Â°F), while the average low is 15Â°C (59Â°C), and the average high is 23Â°C (73Â°F).
The sea water temperature in Greece varies between 17 Â° C in the winter months and 27 Â° C in August. WHEN TO GO TO GREECE. The best months for traveling to Greece are the spring (April-June) and September to October. August and July are very hot, but they are the preferred months for vacationers. Climate of Athens. Climate of Crete. Climate of Mykonos. Climate of Rhodes. Climate of Santorini. 1  Santorini, Cyclades, Greece. 2  Potami, Samos, North Eastern Aegean Islands, Greece. 3  Temple of Poseidon, Cape Sounion, Greece Central, Greece.