Well, in San Antonio, April flowers give way to May showers as May is, on average, the wettest month of the year in the city, with almost 5 inches of average rainfall over the course of the month. Highs will regularly hover around 90° and lows will be in the low 70s.
San Antonio - Weather by month Based on the period 1991-2020 (January - February - March - April - May - June - July - August - September - October - November - December) January, the coldest month of the year, is generally a mild month. The average temperature is of 11.2 °C (52 °F), with a minimum of 5 °C (41 °F) and a maximum of 17.4 °CIn 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 kkR0yWA.