Galveston Weather Radar

Galveston Live Weather

Galveston Live Weather Radar

Click to toggle between the Galveston cloud cover radar map and the Galveston precipitation radar map.

Galveston Hourly Weather Forecast

Galveston 7-Day Weather Forecast

Galveston Weather Overview

Galveston weather radar matters because the city sits on a low barrier island between Galveston Bay and the Gulf of Mexico. Warm Gulf air keeps the climate humid-subtropical, with sudden showers, sea-breeze storms, and tropical rain bands all in play. The NWS Galveston climate record shows 50.76 inches of normal annual rainfall, so a Galveston weather radar check is useful even on days that start clear.

The biggest threat is tropical weather. The 1900 Galveston hurricane still defines the city's storm history, and Hurricane Ike made landfall near Galveston in 2008 as a Category 2 storm with 110 mph sustained winds. Galveston weather radar helps track outer rain bands before they cross the Seawall, Moody Gardens, or the I-45 causeway. During Hurricane Harvey in 2017, NWS storm reports listed EF0 tornado damage in Galveston County, a reminder that tropical systems can bring more than surge and flooding.

Flooding is the daily concern. The island's low elevation means heavy rain, high tides, and poor drainage can stack up quickly, especially near bay-side streets. Galveston weather radar is also useful during spring severe thunderstorms, when lightning and damaging wind can interrupt beach plans or port work. The NWS Houston/Galveston office (WFO HGX) covers the area, and Galveston weather radar live tracking helps time travel, outdoor work, and hurricane-season decisions.

Galveston Weather Risks & Safety

Key weather hazards to monitor on the Galveston weather radar

Hurricane & Tropical Storm Risk

Galveston sits in the path of Atlantic and Gulf tropical systems. Hurricane season runs June 1 through November 30, peaking in August and September when warm sea surface temperatures fuel rapid intensification. On the radar, you can track the eye wall, rain bands, and embedded tornadoes as a storm approaches. If you live in Galveston, keep your evacuation plan current and check the radar frequently once a tropical advisory is issued.

Flooding & Flash Flood Risk

Flash flooding is Galveston's most persistent weather hazard. Slow-moving thunderstorms or tropical moisture can dump enough rain to overwhelm drainage systems within hours — especially in paved urban areas where water has nowhere to go. Check the radar to see where the heaviest rain is falling and which areas to avoid. The standing rule: turn around, don't drown. Never drive through flooded roads, even if they look shallow.

Severe Thunderstorm Risk

Severe thunderstorms roll through Galveston regularly, especially spring through early fall. Expect damaging winds above 58 mph, large hail, and dangerous lightning. The radar shows you each storm cell's position, movement, and intensity — so you can tell if one is headed your way. When a thunderstorm warning drops for Galveston, get indoors and away from windows until it passes.

Tornado Risk

Tornadoes hit Galveston hardest in spring and early summer, when warm Gulf air slams into cooler northern fronts. Supercell thunderstorms can spin up EF2+ tornadoes with very little lead time. On radar, rotation signatures inside storm cells give you a few critical minutes to reach shelter. Galveston averages several tornado warnings per year — know where your safe room or interior closet is before you need it.

How to Use Galveston Weather Radar

Follow these steps to get the most from the Galveston weather radar data.

Check Gulf Conditions First

Start with current Galveston temperature, wind, and humidity before looking at the map. Strong onshore wind and rising Gulf moisture often signal heavier rain bands near the island.

Watch Rain Bands Over the Island

Use the Galveston weather radar animation to see showers crossing West Bay, the Seawall, and the I-45 causeway. Red and orange cores mean heavy rain or lightning is close.

Compare Radar With the Forecast

Check the hourly and 7-day forecast when tropical moisture is nearby. If radar shows repeated bands offshore, the forecast helps judge whether storms will linger or clear out.

Plan Around Flood-Prone Routes

Before driving Seawall Boulevard, Broadway, or the I-45 causeway, look for slow-moving cells over Galveston County. During tropical alerts, return often and follow NWS Houston/Galveston warnings.

Who Benefits from Galveston Weather Radar

How different people use the Galveston radar data

Commuters & Drivers

I-45 causeway drivers can spot Gulf downpours before low spots slow traffic.

Outdoor Enthusiasts

Stewart Beach visitors can time walks around lightning and fast-moving rain bands.

Event Planners & Families

Pleasure Pier plans are easier when radar shows storms offshore or moving inland.

Outdoor Workers

Port of Galveston crews can track squalls before exposed dock work starts.

Galveston Weather FAQ

Common questions about Galveston weather patterns and radar

When is hurricane season in Galveston?

Hurricane season in Galveston runs from June 1 through November 30, with the highest risk from August through September. The island faces both wind and storm surge because it sits directly on the upper Texas coast. Check Galveston weather radar more often once tropical advisories enter the Gulf, and follow evacuation guidance before water cuts off the causeway.

How much rain does Galveston get each year?

Galveston averages 50.76 inches of rain per year based on the NWS 1981-2010 climate normals. September is the wettest normal month at 6.03 inches, but tropical systems can overwhelm those averages quickly. The NWS Galveston record for one-day rainfall is 13.93 inches, set on October 8, 1901.

What was the worst hurricane to hit Galveston?

The 1900 Galveston hurricane remains the city's defining disaster and is widely considered the deadliest natural disaster in U.S. history. For modern radar-era storms, Hurricane Ike made landfall near Galveston on September 13, 2008 as a Category 2 hurricane with 110 mph sustained winds, causing destructive storm surge across the island.

Does Galveston get tornadoes during hurricanes?

Yes. Tropical systems can spin up brief tornadoes in rain bands, especially north and east of the storm center. During Hurricane Harvey in 2017, NWS storm reports listed EF0 tornado damage in Galveston County, including near Galveston and Bacliff. Treat any tornado warning seriously and move to an interior room away from windows.

Why does Galveston flood so easily during storms?

Galveston is a low barrier island, so heavy rain, storm surge, and high tides can overlap. Streets near the Seawall, bay side neighborhoods, and the I-45 approach can flood when slow-moving storms stall. Because the annual rainfall normal is 50.76 inches, even non-hurricane downpours deserve attention if radar shows repeated cells.

How is this radar different from KHOU or KPRC 2 Galveston weather radar?

KHOU and KPRC 2 pair Houston/Galveston radar with meteorologist analysis, live video, and severe-weather coverage. This page is built for quick radar checks: interactive RainViewer maps, Open-Meteo hourly forecasts, and a 7-day outlook for Galveston without video autoplay. Radar imagery updates about every 10 minutes, so it works well as a fast companion to local TV coverage.