66 % April average humidity The relative humidity in San Antonio during April usually peaks at 83 percent in the morning then drops to 49 percent by mid afternoon. Wind 10.1 mph April wind speed average 16.3 kph April is one of the windiest months in San Antonio. Storms Reference
Get the monthly weather forecast for San Antonio, TX, including daily high/low, historical averages, to help you plan ahead.The best time to visit San Antonio is from November to April, when the weather is comfortable and the hotel rates are lower. Summer sees the largest influx of tourists from in- anddxxDtJM.