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San Antonio, TX Weather


San Antonio, TX climate is hot during summer when temperatures tend to be in the 80's and cool during winter when temperatures tend to be in the 50's.

The warmest month of the year is August with an average maximum temperature of 94.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 38.60 degrees Fahrenheit.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 21 degrees Fahrenheit, and moderate during winter with an average difference of 24 degrees Fahrenheit.

The annual average precipitation at San Antonio is 32.92 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 4.72 Inches.

Weather Data

Current Conditions

(Updated: 1:53 AM CDT SAT AUG 30 2008)

Partly Cloudy Partly Cloudy, 75°F Humidity: 84% Dewpoint: 70°F
Wind Speed: CALM Heat Index: 75°F
Barometer: 29.95 in. Wind Chill: 75°F

Weather Forecast

(Generated: 9:37 PM CDT FRI AUG 29 2008)
  Tonight: Mostly cloudy. A less than 20 percent chance of showers and thunderstorms before midnight. Lows in the lower 70s. Northeast winds 5 mph.
Lo: 71°F
Hi: 91°F Saturday: Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the lower 90s. East winds 5 to 10 mph.
Lo: 71°F
Hi: 91°F Sunday: Partly sunny with a 20 percent chance of showers or thunderstorms. Highs in the lower 90s. Northeast winds 5 mph shifting to the southeast in the afternoon.
Lo: 71°F
Hi: 95°F Labor day: Mostly sunny. Highs 92 to 97.
Lo: 75°F
Hi: 99°F Tuesday: Partly cloudy. Highs in the upper 90s. Lows in the mid 70s.
Lo: 75°F
Hi: 95°F Wednesday: Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 90s.
Lo: 71°F
Hi: 95°F Thursday: Partly cloudy. A 20 percent chance of showers and thunderstorms. Highs in the mid 90s. Lows in the lower 70s.
Lo: 71°F

Moon, Sunrise and Sunset

New Moon Moon Phase: New Moon Civil Twilight:
6:45 AM CDT
Sunrise:
7:10 AM CDT
Sunset:
7:58 PM CDT
Civil Twilight:
8:22 PM CDT

Normal Climate

Normal Temperatures

(SAN ANTONIO INTL AP Weather station, 7.47 miles from San Antonio)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 62.1 67.1 74.3 80.4 86.0 91.4 94.6 94.7 90.0 82.0 71.4 64.0 79.8
Mean °F 50.3 54.7 62.1 68.6 75.8 81.5 84.3 84.2 79.4 70.7 60.0 52.4 68.7
Min °F 38.6 42.4 49.9 56.9 65.5 71.6 74.0 73.6 68.8 59.4 48.6 40.8 57.5

Normal Precipitation

(SAN ANTONIO INTL AP Weather station, 7.47 miles from San Antonio)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 1.66 1.75 1.89 2.60 4.72 4.30 2.03 2.57 3.00 3.86 2.58 1.96 32.92