
Climate
Average monthly temperatures at the Hymettus weather station, for the period November 2007 to August 2011.
| Month | Average maximum (°C) | Average minimum (°C) |
|---|---|---|
| Jan | 13,3 | 8,2 |
| Feb | 13,9 | 7,8 |
| Mar | 17,1 | 10,4 |
| Apr | 20,7 | 13,5 |
| May | 25,6 | 17,8 |
| Jun | 30,2 | 22,6 |
| Jul | 33,4 | 25,3 |
| Aug | 33,3 | 25,5 |
| Sep | 27,7 | 20,5 |
| Oct | 22,2 | 16,6 |
| Nov | 19,4 | 13,2 |
| Dec | 14,9 | 9,9 |
The table shows the Mediterranean pattern clearly: hot, dry summers with highs around 33 °C in July and August, and mild winters with highs around 13 to 14 °C. The average low reaches 25 °C in July and August.
Kathimerini and English Wikipedia note that Hymettus is also known colloquially as "Trellos" or "Trellovouno" (crazy mountain), a name Greek Wikipedia links, probably, to the French très long ("very long"). This is not a climate fact.
Sources
The temperatures come from one station and a short period (November 2007 to August 2011), so they show the general pattern, not a climate average. No official rainfall data was found, so none is given.