...great info since we are considering a week in Famara, Lanzarote in october.
Just back from a 3 weeks trip in Famara.
1st week : 7m
2nd week : 9m
3rd week : 9M + extension (almost no wind the last 2 days... but a surprising very good swell for paddle surfing)
As Dirk mentioned already, the alize usually start to decline in august... so october can be good but it is more of a gamble than in summer.
Enjoy your trip to my favorite spot
Have Fun & Ride Safe