Updated October 2026
Galveston Island State Park: Weather by Month and When to Go
Galveston Island State Park is a state park in Texas. The USGS Protected Areas Database maps about 1,900 acres under its name. Average highs range from 63°F in January to 92°F in August.
Average highs sit between 60°F and 80°F in November through April. They run above 80°F in May through October. The figures are NOAA climate normals for 1991–2020, measured at a weather station 7.7 miles from the park.
Warmest average high
92°F
August
Coldest average low
49°F
January
Most precipitation
6.7 in
September
Longest days
13.9 h
June
Galveston Island State Park weather by month
| Month | Average high | Average low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 63°F | 49°F | 4.3 in | 0.0 in | 10.3 h |
| February | 66°F | 52°F | 2.1 in | 0.0 in | 11.0 h |
| March | 72°F | 58°F | 3.0 in | 0.0 in | 11.8 h |
| April | 78°F | 65°F | 2.1 in | 0.0 in | 12.7 h |
| May | 84°F | 72°F | 3.0 in | 0.0 in | 13.5 h |
| June | 90°F | 78°F | 4.2 in | 0.0 in | 13.9 h |
| July | 91°F | 80°F | 3.4 in | 0.0 in | 13.7 h |
| August | 92°F | 80°F | 4.7 in | 0.0 in | 13.1 h |
| September | 89°F | 76°F | 6.7 in | 0.0 in | 12.2 h |
| October | 82°F | 69°F | 5.2 in | 0.0 in | 11.3 h |
| November | 72°F | 59°F | 4.3 in | 0.0 in | 10.5 h |
| December | 66°F | 52°F | 4.2 in | 0.1 in | 10.1 h |
Temperature, precipitation and snowfall figures are NOAA climate normals for 1991–2020 from station USW00012923, the nearest station with a complete set of temperature normals, 7.7 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month. The acreage is what the USGS Protected Areas Database maps under the park's name. The state's own figure can differ, because the database may hold part of a park under another name.
What the averages show
- Temperature. August is the warmest month, with an average high of 92°F and an average low of 80°F. January is the coldest month, with an average low of 49°F and an average high of 63°F.
- Precipitation. September is the wettest month, averaging 6.7 inches of precipitation, and February and April are the driest, at 2.1 inches each. An average year brings about 47.2 inches in total.
- Snowfall. The station averages 0.1 inches of snow a year, with the most in December (0.1 inches).
- Daylight. Days run from about 10.1 hours of daylight in December to 13.9 hours in June.
Camping, trails, maps and fees
Whether Galveston Island State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Galveston Island State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
National Weather Service forecast for Galveston Island State Park
Where to stay near Galveston Island State Park
Hotels, cabins and vacation rentals near Galveston Island State Park, with live availability and prices.
Top-rated places to stay near Galveston Island State Park
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Galveston Island State Park?
Get lodging deals near Galveston Island State Park by email. No spam, unsubscribe anytime.
Frequently Asked Questions
August is the warmest month, with an average high of 92°F and an average low of 80°F. January is the coldest month, with an average low of 49°F and an average high of 63°F. These are NOAA 1991–2020 climate normals from a weather station 7.7 miles from the park.
Average highs sit between 60°F and 80°F in November through April. They run above 80°F in May through October.
September is the wettest month, averaging 6.7 inches of precipitation, and February and April are the driest, at 2.1 inches each. An average year brings about 47.2 inches in total. Snowfall averages 0.1 inches a year, with the most in December.
Days run from about 10.1 hours of daylight in December to 13.9 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Big Thicket National Preserve93 miles away
- Cane River Creole National Historical Park206 miles away
- Padre Island National Seashore208 miles away
Nearby state parks
- Brazos Bend State Park40 miles away
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location and acreage; the official Texas state park listing for the park's name.