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San Leon, TX Weather


San Leon, 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 9.99 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.99 degrees Fahrenheit.

Temperature variations between night and day tend to be small during summer with a difference that can reach 9 degrees Fahrenheit, and fairly limited during winter with an average difference of 13 degrees Fahrenheit.

The annual average precipitation at San Leon is 9.99 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is September with an average rainfall of 5.76 Inches.

Weather Data

Normal Climate

Normal Temperatures

(GALVESTON Weather station, 9.99 miles from San Leon)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 61.9 64.4 70.0 75.2 81.4 86.6 88.7 89.3 86.5 79.7 71.3 64.3 76.6
Mean °F 55.8 58.0 64.1 70.0 76.9 82.2 84.3 84.4 81.1 74.1 65.4 58.1 71.2
Min °F 49.7 51.5 58.2 64.7 72.3 77.8 79.8 79.5 75.6 68.4 59.4 51.8 65.7

Normal Precipitation

(GALVESTON Weather station, 9.99 miles from San Leon)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 4.08 2.61 2.76 2.56 3.70 4.04 3.45 4.22 5.76 3.49 3.64 3.53 9.99