When flying from San Juan to Tenerife, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
In terms of precipitation, rainfall in Tenerife ranges from 0.0 - 2.0 inches per month. December is typically the wettest month, when rainfall can reach 2.0 in. May is typically the driest time to visit Tenerife when rainfall is around 0.0 in.
If weather is an important factor for your trip to Tenerife, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 62.6 F).