September, being the last month of the hydrological year, typically
concludes the 'dry period' in places of the country like eastern continental
and southern Greece. Some data for the weather of the last month in SE
Athens (37.894N, 23.768E, 148 m amsl):

Temperature

Minimum air temperatu +15.7C (6) | max min: +26.0C (1)
Maximum air temperatu +38.5C (1) | min max: +24.4C (4)
Average minimum air temperatu +18.7C (-0.8)
Average maximum air temperatu +28.8C (+0.9)
Average air temperatu +23.8C (+0.1)

Precipitation

Precipitation days: 10
Rain days: 3
Thunder days: 4
Hail days: 0
Snow days: 0
Days with a snow cover at 0900C/2100C: 0
Monthly precipitation: 11.4 mm (106.5%)
Maximum 24h rainfall: 9.2 mm (4)
Maximum avg 3' rainfall intensity: 127 mm/h (4)
de Martone index: 4.1

Peak wind gust
51.1 kph from the NE (4)

Sunshine (E Athens, 219 m amsl)

278.97 h of sunshine
Max solar radiation: 1091.17 W/m^2
Average solar radiation: 203.75 W/m^2

Aggregate and day-by-day data for the month that has just ended can be found
on http://dias.aueb.gr/~ikarag/everyday/september03.html. Climatic data for
the month can be viewed on
http://dias.aueb.gr/~ikarag/climate/september.html.

Yannis, SE Athens
+20.7C, RH 72%