Planning for the weather is a good way to make your trip to Girardota relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July with an average temp of 66°F, while the coldest months are December and January with an average of 64°F. The rainiest months in Girardota are May, April, October, and November, with each month seeing an average of 16 inches of rainfall.