San Antonio Weather in June

Although June's weather is the year's rainiest for San Antonio, Texas, most days are dry and it's often sunny.

This page gives detailed information on the typical June temperature, precipitation, sun, humidity, wind and storms for San Antonio. The numbers here are historical averages based on climate data gathered at the San Antonio International Airport, located a few miles north of the city center.

Temperature Weather iconTemperature

92 °F June average high 34 °C
73 °F June average low 23 °C
24 days 90 °F max. or more (32 °C)
7 days 70 °F min. or less (21 °C)

Usually every day in June heats up to over 80 degrees Fahrenheit (27 degrees Celsius) at San Antonio. The city averages two days this month when the thermometer reaches into the 100s °F (over 38 °C).

Most years, it never gets as cold as 60 °F (16 °C) in San Antonio during June.

Rainy Weather iconRain

3.3 in total precipitation 83 mm
7 days of rain

Half the time, the city receives 1.0 to 5.5 inches (26 to 139 mm) of rainfall in June. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

67 % sunshine
7 days clear skies

The sun's rays reach the ground in San Antonio during 67 percent of daylight hours on average in June, for a total of 281 hours in the month. Typically on 7 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in June at San Antonio averages 14 hours a day. The longest days of the year, from around June 17th to 24th, last 14 hours and 2 minutes from sunrise to sunset.

Humid Weather iconHumidity

69 % June average humidity

The relative humidity in San Antonio during June usually peaks at 87 percent in the morning then drops to 50 percent by mid afternoon.

Local Time12 am3 am6 am9 am12 pm3 pm6 pm9 pm
Humidity % 79 85 87 73 58 50 52 66

Windy Weather iconWind

9.7 mph June wind speed average 15.6 kph

June is windier than most other months in San Antonio.

Stormy Weather iconStorms

2 days rainfall of 0.5 inches (13 mm) or more
5 days with thunderstorms in June
4 % chance a named storm approaches

While there's a 4 percent probability that a named tropical storm will approach within 100 miles (165 km) of San Antonio during June, it's unlikely that any storm in the area will be as severe as a hurricane.


The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.

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