Water Temperature of Port of Galveston in Galveston, TX
Current Water Temperature
Measurement Time: Tuesday, August 5, 2025, 3:06 PM CDT
Today's Tides
High: August 5, 5:23 AM, 1.48 ft
Low: August 5, 8:28 PM, -0.33 ft
Temperature Locations
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Local Points of Interest
Pelican Island; Galveston Channel; Texas City Channel; Bolivar Roads; Campbell Bayou; Galveston Bay; Gulf of MexicoSponsored Content
Station Name: Galveston Pier 21
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 52 feet / 16 meters
Sensor Depth: -10.6 feet / -3.2 meters
Nearest Address:
2002 Wharf Rd
Galveston, TX 77550
Galveston County
GPS Coordinates: 29.310000, -94.793306
Nearby Water Temperatures
Galveston Bay, Galveston, TX (2.3 mi)Bolivar Roads, Galveston, TX (5.3 mi)
Galveston Bay, Galveston, TX (6.3 mi)
Galveston Bay, San Leon, TX (13.9 mi)
Rollover Pass, Port Bolivar, TX (22.0 mi)
Trinity Bay, Anahuac, TX (24.4 mi)
Trinity Bay, Baytown, TX (25.2 mi)
San Luis Pass, Freeport, TX (25.8 mi)
San Jacinto River, La Porte, TX (28.1 mi)
Galveston Bay, High Island, TX (31.2 mi)
Old River, Wallisville, TX (34.3 mi)
Trinity River, Wallisville, TX (34.9 mi)
Old River Lake, Cove, TX (36.0 mi)
Lake Charlotte, Wallisville, TX (38.8 mi)
Gulf of Mexico, Surfside Beach, TX (39.8 mi)
Weather for Galveston, Texas
Current Weather

Humidity: 68%
Feels Like: 101.2°F
Wind: ESE 8.7 mph
Wind Gusts: 11.4 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 7.6
Five Day Weather Forecast

Tue
H: 89°F
L: 84°F

Wed
H: 89°F
L: 83°F

Thu
H: 86°F
L: 83°F

Fri
H: 86°F
L: 83°F

Sat
H: 86°F
L: 83°F
Air Quality
Nitrogen Dioxide: 5.92 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 159 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:08 PM
Daylight: 13 hrs 26 mins
Moon Transit: 10:44 PM
Moonset: 2:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
9:07 AM - 11:37 AM12:00 AM - 12:00 AM
Minor Periods
5:15 PM - 6:45 PM2:19 AM - 3:49 AM
Action Rating: 2 out of 5
Air Quality Alert issued August 4 at 2:14PM CDT by NWS Houston/Galveston TX
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 2:14 PM
Expires: Tue August 5, 2025, 6:15 PM
AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, August 5, 2025. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Air Quality Alert issued August 4 at 2:14PM CDT by NWS Houston/Galveston TX
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 2:14 PM
Expires: Tue August 5, 2025, 6:15 PM
AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, August 5, 2025. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Air Quality Alert issued August 4 at 2:14PM CDT by NWS Houston/Galveston TX
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 2:14 PM
Expires: Tue August 5, 2025, 6:15 PM
AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, August 5, 2025. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Air Quality Alert issued August 4 at 2:14PM CDT by NWS Houston/Galveston TX
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 2:14 PM
Expires: Tue August 5, 2025, 6:15 PM
AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, August 5, 2025. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Air Quality Alert issued August 4 at 2:14PM CDT by NWS Houston/Galveston TX
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Mon August 4, 2025, 2:14 PM
Expires: Tue August 5, 2025, 6:15 PM
AQAHGX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Houston, Galveston, and Brazoria area for Tuesday, August 5, 2025. Atmospheric conditions are expected to be favorable for producing high levels of ozone pollution in the Houston, Galveston, and surrounding areas on Tuesday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy and keeping your vehicle properly tuned. For more information on ozone: Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA Take Care of Texas: www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Weather Forecast
Average Temperature: 85.3°F
Average Humidity: 75%
Wind: 12.8 mph
UV Index: 2.3
Air Quality
Nitrogen Dioxide: 7.18 μg/m3
Sulphur Dioxide: 2.38 μg/m3
Ozone: 168.32 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:08 PM
Daylight: 13 hrs 26 mins
Moon Transit: 10:44 PM
Moonset: 2:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
9:07 AM - 11:37 AM12:00 AM - 12:00 AM
Minor Periods
5:15 PM - 6:45 PM2:19 AM - 3:49 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 84.8°F
Average Humidity: 76%
Wind: 13.4 mph
UV Index: 2.6
Air Quality
Nitrogen Dioxide: 4.95 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 135.72 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:07 PM
Daylight: 13 hrs 24 mins
Moon Transit: 11:39 PM
Moonset: 3:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%
Best Times for Fishing or Hunting
Major Periods
10:02 AM - 12:32 AM12:00 AM - 12:00 AM
Minor Periods
6:06 PM - 7:36 PM3:15 AM - 4:45 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 84.2°F
Average Humidity: 80%
Wind: 13.6 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 4.69 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 84.92 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:06 PM
Daylight: 13 hrs 23 mins
Moon Transit: 12:00 AM
Moonset: 4:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:56 AM - 1:26 PM
Minor Periods
6:51 PM - 8:21 PM4:16 AM - 5:46 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 84.2°F
Average Humidity: 77%
Wind: 14.1 mph
UV Index: 2.5
Air Quality
Nitrogen Dioxide: 4.54 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 84.4 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:05 PM
Daylight: 13 hrs 21 mins
Moon Transit: 12:33 AM
Moonset: 5:50 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:03 AM - 2:33 AM11:49 AM - 2:19 PM
Minor Periods
7:31 PM - 9:01 PM5:20 AM - 6:50 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 84.6°F
Average Humidity: 67%
Wind: 14.5 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 3.9 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 85.85 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 8:05 PM
Daylight: 13 hrs 20 mins
Moon Transit: 1:24 AM
Moonset: 6:55 AM
Moon Phase: Full
Moon Illumination: 99.0%
Best Times for Fishing or Hunting
Major Periods
12:54 AM - 3:24 AM12:40 AM - 3:10 PM
Minor Periods
8:07 PM - 9:37 PM6:25 AM - 7:55 AM
Action Rating: 5 out of 5