If you are traveling to Cabo San Lucas, here is a nice weather summary of what you can expect when you get there...

http://www.tropicalweather.net/cabo_san_lucas_travel_weather.htm

Cabo San Lucas is one of the destination in Baja California Peninsula, with a perfect combination of great weather, exotic and spectacular scenery as well. Cabo San Lucas has a dry climate most of the year with lots of sunshine.

Cabo is known for its white sandy beaches, several world-class Scuba diving locations, and the distinctive sea arch El Arco de Cabo San Lucas. A vacation experience with few crowds, warm hospitality, and excellent services and facilities, this is the best beach-destination in Mexico for the purpose of revitalizing your weary reflexes and eradication of your stress as well.