The best time to work on your infield (baseball and softball) skinned area is now . The months of August and September typically have good weather with little play so that you can get work done, use the field for fall ball, and avoid the significant dangers of an overly soft field in the spring. Following the renovation the first few rains (and irrigation cycles) will still cause the field to become soft (and in most cases unplayable). However, the winter rains will help settle the field for play in the spring. You will still want to do a field drag and topdressing in the spring to get the field in “game shape” but the soil disturbance should ideally be kept to a minimum.