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
In San Antonio the weather in April is generally perfect, with high temperatures and moderate rainfall. Anticipate daytime temperatures around 28°C , while night temperatures can drop to 15°C . San Antonio in April usually receives moderate rainfall, averaging around 59 mm for the month. The average temperature in San Antonio in April for a typical day ranges from a high of 85°F (29°C) to a low of 59°F (15°C). Some would describe it as pleasantly warm and breezy. For comparison, the hottest month in San Antonio, August, has days with highs of 100°F (38°C) and lows of 76°F (24°C). The coldest month, January has days with WijS. 59 55 262 716 882 350 944 534