Weather will likely play an important role when you plan your trip to Valenzuela, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and February with an average temp of 80°F, while the coldest months are July and June with an average of 64°F. The rainiest months in Valenzuela are October, November, December, and April, with each month seeing an average of 7 inches of rainfall.