I didn't think anywhere in the Canaries particularly has an off peak season because you can get good weather all year round. High season I'd think is school holidays - Christmas, Easter and summer.
But that is just bad luck PP. I've been in November and December, once it was cloudy and cold and twice it was 25 and sunny every day. Pot luck over there.
20 December 2014 - 5 January 2015 £ 650.00
6 January 2015 - 29 March 2015 £ 460.00
30 March 2015 - 12 April 2015 £ 550.00
13 April 2015 - 23 May 2015 £ 460.00
24 May 2015 - 31 May 2015 £ 550.00
1 June 2015 - 1 July 2015 £ 505.00 -
2 July 2015 - 6 September 2015 £ 680.00 -
7 September 2015 - 22 October 2015 £ 460.00 -
23 October 2015 - 30 October 2015 £ 500.00 -
31 October 2015 - 19 December 2015 £ 460.00 -
20 December 2015 - 3 January 2016 £ 1500.00 -
4 January 2016 - 19 March 2016 £ 460.00 -
20 March 2016 - 4 April 2016 £ 550.00
^ Sorry accidentally pressed submit. These are rates for a villa rental in Lanzarote, gives you a rough idea. As I said earlier, Xmas and Easter etc are higher