Live Weather & Forecast

Weather in San Leon

Texas, United States · Real-time conditions & 3-day outlook

Flag of United States
Partly cloudy
23°C
Feels like 25°C
73°F / Feels 77°F
Partly cloudy
San Leon, Texas
🌙 Nighttime
Updated: 2026-04-13 00:45
💧
Humidity
94%
💨
Wind
28.4 km/h SSE
🌬️
Wind Gust
40.6 km/h
🌡️
Pressure
1021 mb
👁️
Visibility
16 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
50%
💦
Dew Point
21.7°C
🌐
Wind Degree
160°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
120.9 μg/m³
NO₂
4.3 μg/m³
O₃
93 μg/m³
SO₂
1.4 μg/m³
PM 2.5
10.9 μg/m³
PM 10
15.9 μg/m³

Weather Alerts 3

Met · Minor · Expected
Flood Advisory issued April 12 at 6:51PM CDT until April 12 at 8:15PM CDT by NWS Houston/Galveston TX

* WHAT...Urban and small stream flooding caused by excessive rainfall continues. * WHERE...A portion of southeast Texas, including the following counties, Austin, Harris, Montgomery and Waller. * WHEN...Until 815 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 651 PM CDT,...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

Effective: 2026-04-12T18:51:00-05:00  ·  Expires: 2026-04-12T20:15:00-05:00
Met · Minor · Expected
Flood Advisory issued April 12 at 5:27PM CDT until April 12 at 8:30PM CDT by NWS Houston/Galveston TX

* WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Texas, including the following counties, Harris and Montgomery. * WHEN...Until 830 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 527 PM CDT, Doppler radar...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

Effective: 2026-04-12T17:27:00-05:00  ·  Expires: 2026-04-12T20:30:00-05:00
Met · Severe · Future
Flood Watch issued April 12 at 3:32PM CDT until April 13 at 7:00AM CDT by NWS Houston/Galveston TX

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southeast Texas, including the following areas, Inland Harris, Montgomery and Waller. * WHEN...Through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. *...

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Effective: 2026-04-12T15:32:00-05:00  ·  Expires: 2026-04-13T04:00:00-05:00

Today's Hourly Forecast

24-hour breakdown for San Leon, Texas

12 AM
Clear
23°
Clear
💧 91% 💨 27.4 km/h
1 AM
Partly cloudy
23°
Partly cloudy
💧 94% 💨 28.4 km/h
2 AM
Clear
23°
Clear
💧 90% 💨 26.6 km/h
3 AM
Clear
23°
Clear
💧 90% 💨 23.8 km/h
4 AM
Clear
23°
Clear
💧 89% 💨 22 km/h
5 AM
Clear
23°
Clear
💧 89% 💨 20.5 km/h
6 AM
Partly Cloudy
23°
Partly Cloudy
💧 89% 💨 20.9 km/h
7 AM
Partly Cloudy
23°
Partly Cloudy
💧 88% 💨 22 km/h
8 AM
Partly Cloudy
23°
Partly Cloudy
💧 88% 💨 25.6 km/h
9 AM
Partly Cloudy
24°
Partly Cloudy
💧 86% 💨 27.7 km/h
10 AM
Sunny
24°
Sunny
💧 83% 💨 28.8 km/h
11 AM
Partly Cloudy
24°
Partly Cloudy
💧 82% 💨 28.1 km/h
12 PM
Sunny
24°
Sunny
💧 82% 💨 26.3 km/h
1 PM
Partly Cloudy
24°
Partly Cloudy
💧 90% 💨 25.9 km/h
2 PM
Partly Cloudy
24°
Partly Cloudy
💧 90% 💨 26.6 km/h
3 PM
Partly Cloudy
24°
Partly Cloudy
💧 90% 💨 25.9 km/h
4 PM
Partly Cloudy
24°
Partly Cloudy
💧 89% 💨 25.2 km/h
5 PM
Partly Cloudy
24°
Partly Cloudy
💧 89% 💨 25.9 km/h
6 PM
Partly Cloudy
23°
Partly Cloudy
💧 91% 💨 24.5 km/h
7 PM
Partly Cloudy
23°
Partly Cloudy
💧 92% 💨 23.4 km/h
8 PM
Cloudy
23°
Cloudy
💧 94% 💨 23.8 km/h
9 PM
Overcast
23°
Overcast
💧 94% 💨 22.7 km/h
10 PM
Overcast
22°
Overcast
💧 95% 💨 23.4 km/h
11 PM
Overcast
22°
Overcast
💧 97% 💨 25.2 km/h

3-Day Forecast

Daily overview for San Leon, Texas

Today
Partly Cloudy
Partly Cloudy
24° / 22°
🌧️ 0% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.2
🌅 Sunrise: 06:55 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Overcast
Overcast
23° / 21°
🌧️ 0% chance of rain
💧 Avg. humidity: 94%
💨 Max wind: 29.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.3
🌅 Sunrise: 06:54 AM
🌇 Sunset: 07:46 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
Partly Cloudy
24° / 22°
🌧️ 0% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 28.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.4
🌅 Sunrise: 06:53 AM
🌇 Sunset: 07:47 PM
🌙 Waning Crescent
🌑 Moon: 8% lit

Best Time to Visit San Leon

Plan your trip to San Leon, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to San Leon 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in San Leon?
Current conditions in San Leon: Partly cloudy, temperature 23°C, humidity 94%.
What is the best time to visit San Leon?
The best time to visit San Leon is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in San Leon?
San Leon is located at approximately 29.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in San Leon?
The wettest period in San Leon is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to San Leon?
For visits to San Leon during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is San Leon in?
San Leon is located in United States, in the state of Texas.
What are the public holidays in San Leon in 2026?
View the 2026 public holidays for San Leon on our Holidays page.
What are the GPS coordinates used for the weather forecast in San Leon?
The weather forecast for San Leon uses coordinates 29.4867, -94.9216.