Hi Arthur,
My wife and I will be leaving Granada in Mid September and I have compiled some climate details for Granada and Cordoba.
The September details for both cities are:
Granada
Period of record (1994-2010)
Mean Maximum Temp.(°C) 28.8
Highest Maximum (°C) 39.4
Days with Max >=30°C 14
Days with Max >=35°C 3
Mean Minimum Temp (°C) 12.7
Lowest Minimum Temp (°C) 4.0
Mean Rainfall (mm) 22
Mean Days of Rain (>= 1mm) 3
Cordoba
Period of record (1994-2010)
Mean Maximum Temp.(°C) 31.2
Highest Maximum (°C) 41.6
Days with Max >=30°C 19
Days with Max >=35°C 7
Mean Minimum Temp (°C) 17.0
Lowest Minimum Temp (°C) 8.4
Mean Rainfall (mm) 31
Mean Days of Rain (>= 1mm) 3
Temperatures at the start of September will probably be 2 to 3 degrees Celsius above the means for mid September.
For the Smanish metoerological service (AEMET) forecasts for Granada check out :
http://www.aemet.es/es/eltiempo/predicc ... da-id18087
Cordoba is at:
http://www.aemet.es/es/eltiempo/predicc ... ba-id14021
I suggest you start working early in the morning and carry lots of water.
Best of luck
Kevin