Our Proprietary 10-Day Forecast

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Current warnings over San Leon, Texas
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over San Leon, Texas red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over San Leon, Texas red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Galveston County, TX

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near San Leon, Texas

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in San Leon, TX please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over San Leon, TX

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in San Leon, TX, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near San Leon, Texas

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Galveston County, Texas

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
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  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
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Climate Summary
(made with AI, use with caution)
San Leon, Texas Climate Summary

General Climate

    •   San Leon, Texas has a humid subtropical climate, characterized by hot, humid summers and mild winters.
    •   The city experiences an average of 54 inches of rain per year, with the majority falling during the summer months.
    •   San Leon is also prone to occasional hurricanes and tropical storms.

Temperature

    •   The average annual temperature in San Leon is 69.8°F (21°C).
    •   The warmest month is August, with an average temperature of 83.6°F (28.7°C).
    •   The coldest month is January, with an average temperature of 48.5°F (9.2°C).
    •   The average daily temperature range is 20.6°F (11.4°C).

Precipitation

    •   San Leon receives an average of 54.3 inches of rain per year.
    •   The wettest month is June, with an average of 7.3 inches of rain.
    •   The driest month is October, with an average of 2.2 inches of rain.
    •   San Leon experiences an average of 103 days with measurable precipitation per year.

Humidity

    •   The average annual relative humidity in San Leon is 77%.
    •   The most humid month is August, with an average relative humidity of 81%.
    •   The least humid month is January, with an average relative humidity of 70%.

Wind

    •   The average annual wind speed in San Leon is 10.2 mph (16.4 km/h).
    •   The windiest month is March, with an average wind speed of 11.5 mph (18.5 km/h).
    •   The least windy month is August, with an average wind speed of 8.9 mph (14.3 km/h).

Sunshine

    •   San Leon receives an average of 2,664 hours of sunshine per year.
    •   The sunniest month is July, with an average of 310 hours of sunshine.
    •   The least sunny month is December, with an average of 186 hours of sunshine.

Overall, San Leon, Texas has a humid subtropical climate with hot, humid summers and mild winters. The city experiences an average of 54 inches of rain per year, with the majority falling during the summer months. San Leon is also prone to occasional hurricanes and tropical storms.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   San Leon is located on the western shore of Galveston Bay, a rich estuary teeming with marine life.

    •   The area is home to several bird sanctuaries, including the San Leon Bird Sanctuary, which attracts a diverse array of migratory species.

    •   The nearby Galveston Bay Estuary is a designated Important Bird Area, recognized for its significance as a stopover for migratory birds.

Science

    •   San Leon is the site of the Texas A&M University at Galveston, a leading marine research institution.

    •   The university operates a marine laboratory and research center that focuses on coastal and marine science.

    •   Researchers at Texas A&M Galveston have made significant contributions to our understanding of coastal ecosystems, marine biology, and hurricane science.

Personalities

  • Roy Rogers:

    The legendary cowboy singer and actor had a ranch in San Leon, where he raised horses and cattle.

  • J.P. Morgan:

    The prominent financier and industrialist owned a winter home in San Leon, known as \

  • Tourist Attractions
    1.San Leon Beach:

    A popular beach destination known for its soft sand, clear waters, and family-friendly atmosphere.

    2.Kemah Boardwalk:

    A waterfront entertainment complex with amusement rides, arcades, shops, restaurants, and live music venues.

    3.Galveston Island Historic Pleasure Pier:

    An amusement park located on Galveston Island, just a short drive from San Leon. Features classic rides, roller coasters, and a Ferris wheel with panoramic views.

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