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).
Averages for Athens in April. Weather lowdown. Similarly to the spring temperatures that Athens sees in March, April brings even warmer temperatures as the year goes on. The average temperature this month is 15Â°C (59Â°C), while the average low is 11Â°C (52Â°F), and the average high increases to 19Â°C (66Â°F).The beginning of April starts off with mostly sunny days, with a small chance of rain, and an average daily temperature of 13Â°C (55Â°F).he end of April follows the same pattern, as there is even less rain, more sunny days, and a jump in the average daily temperature to 16Â°C (61Â°F). The lowest ever recorded temperature in Athens in April is 3Â°C (37Â°F), while the highest ever recorded temperature is 27Â°C (81Â°F).