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).
Athens Weather. What to Wear. Athens, Georgia enjoys a temperate, four-season climate, with generally mild winters and warm summers. Seasonal highlights include spring blooms and festivals, fall foliage and football, and golf pretty much all year 'round. We're not fussy here. Casual attire rules for most places and most activities.