Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sacramento to Tenerife as you normally would.
Due to multiple factors, expect to potentially pay more when booking in January. For low rates, February can be a great choice for travel to Tenerife. Flights to Tenerife from Sacramento in February are about $940 on average during February, but can be found for as low as $598.