San Leon (TX) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at San Leon

San Leon average temperature chart (Celsius) San Leon average temperature chart (Fahrenheit)
Average monthly temperatures in San Leon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.9 16.5 20.1 23.9 27.4 30.2 31.5 31.6 29.6 25.8 21.1 16.9
°F 58.9 61.7 68.2 75 81.2 86.3 88.6 89 85.3 78.4 70 62.4

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

San Leon monthly rainfall chart (mm) San Leon monthly rainfall chart (inches)
Average monthly rainfall in San Leon (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 87 83 60 75 104 115 101 109 136 83 90 94
inches 3.4 3.3 2.3 3 4.1 4.5 4 4.3 5.3 3.3 3.5 3.7
Rainy days 10 7 8 5 7 7 8 9 10 6 7 8

Average annual rainfall in San Leon: 1070mm (421.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in San Leon

San Leon average daily sunshine chart
Average daily sunshine San Leon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5 6.2 7 7.8 8.9 10.4 10.5 9.5 8.4 8.2 6.3 5.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

San Leon average minimum / maximum temperatures (Celsius) San Leon average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in San Leon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.7 9.3 13.1 17.6 21.3 24.3 25.4 25.4 23.3 18.7 13.9 9.6
Max °C 15.1 16.7 20.3 24.1 27.5 30.3 31.6 31.8 29.8 26 21.3 17.1
Min °F 45.9 48.7 55.6 63.6 70.3 75.7 77.7 77.7 73.9 65.6 57 49.2
Max °F 52.5 55.4 62.1 69.4 75.9 81.1 83.3 83.5 79.7 72.1 63.7 55.9

Sea temperature

The graph below shows the average sea temperature.

San Leon average sea temperature chart (Celsius) San Leon average sea temperature chart (Fahrenheit)
Average sea temperature around San Leon in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.9 16.4 17.9 20.8 24.6 28.2 29.6 29.9 28.8 25.7 22.1 19.1
°F 62.5 61.5 64.2 69.5 76.4 82.8 85.2 85.8 83.8 78.3 71.8 66.4

Wind speed

The graph below shows the average wind speed.

San Leon average winspeed by month (km/h) San Leon average winspeed by month (mph)
Average wind speed in San Leon (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 17 18 18 16 14 13 12 13 13 15 16
mph 10 11 11 11 10 9 8 7 8 8 9 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

San Leon relative humidity averages
Average relative humidity in San Leon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 75% 75% 76% 77% 77% 78% 78% 78% 76% 77% 78%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

San Leon weather stats

San Leon weather statistics
Hottest month: August 31.6°C 88.9°F
Driest month: March 60mm 2.4ins
Sunniest month: July 10.5hrs
Coldest month: January 14.9°C 58.8°F
Wettest month: September 136mm 5.4ins
Warmest sea: August 29.9°C 85.8°F
Map showing location of San Leon (29.48329, -94.92215) San Leon map pin © Google

Locations nearby

Top United States locations