Athens weather
Since I get asked so often... here it is:
Current forecasts in decreasing order of accuracy:
from H.N.M.S.
N.O.A. forecast
Poseidon system
(unofficial weather graphs for entire country)
International sites (CNN, yahoo, intellicast, etc) are most often quite inaccurate.
Climate:
List of average 24h monthly temps at Hellenikon area (near coast)
(www.worldweather.org)
Graph of normal daily Max, Ave, Min temps for Hellenikon
(from www.hnms.gr)
Last 24h at Hellenikon
graph at top left (source: HNMS)
Average 24h monthly temp at National Observatory (altitude 107m)
Records at some Athens areas (source: www.hnms.gr)
Hellenikon -- Max: +42C , Low: -3C ....at 15m.
Elefsina -- Max: +48C , Low -5C ....at 30m.
Nea Filadelfia -- Max: +45C, Low -5C ....at 138m.
Record high according to e-kairos.com : +48.7 in Tatoi suburb.
Typically, the coldest night in a year will be 0 Celcius and the hottest day somewhere between 40-42C.