All data are in degrees Fahrenheit

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Water temperature in Galveston

Detailed information about the current water temperature in Galveston. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Galveston now

86.6

°F

July 26, 14:09

Trend:

stable

Yesterday:

86.7°F

Tomorrow:

86.6°F

Sunrise:

06:36

Sunset:

20:15

Day Length:

13 h. 39 min.

Galveston in August

Minimum:

55.9°F

Average:

59.6°F

Maximum:

64.4°F

Sea water temperature in Galveston today

As of now, in Galveston, the water temperature is 86.6°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.6°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 87.7°F on 2016, while the historical minimum was 84.3°F on 2019.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 86.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Galveston

Date Current Year

actual* / forecast**

last year 10 years average
Jul 12 85.5°F 86.2°F 85.7°F
Jul 13 85.6°F 86.3°F 85.8°F
Jul 14 85.4°F 86.5°F 85.9°F
Jul 15 86.0°F 86.7°F 86.0°F
Jul 16 86.1°F 87.2°F 86.0°F
Jul 17 85.6°F 86.9°F 85.8°F
Jul 18 85.4°F 86.8°F 85.7°F
Jul 19 85.5°F 86.4°F 85.8°F
Jul 20 86.1°F 86.5°F 86.0°F
Jul 21 86.1°F 86.4°F 85.9°F
Jul 22 86.8°F 86.1°F 86.2°F
Jul 23 86.9°F 86.0°F 86.2°F
Jul 24 87.0°F 85.9°F 86.1°F
Jul 25 86.7°F 85.8°F 86.0°F
Jul 26 86.6°F 85.7°F 86.0°F
Jul 27 86.6°F 85.6°F 86.0°F
Jul 28 86.7°F 85.4°F 86.1°F
Jul 29 86.6°F 85.4°F 86.0°F
Jul 30 86.6°F 84.8°F 86.0°F
Jul 31 87.0°F 84.6°F 86.3°F
Aug 1 87.2°F 85.5°F 86.5°F
Aug 2 87.2°F 85.9°F 86.6°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Galveston by month

In Galveston, the months May through October offer comfortable swimming conditions, which amounts to 192 swimming days.
The warmest water in Galveston was recorded on August 18, 2024, reaching a 90.5°F. While the coldest temperature occurred on January 26, 2025, dipping to 49.7°F. The average readings by season are 60.1°F in Winter, 71.7°F in Spring, 85.6°F in Summer, and 77.8°F in Autumn.