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

86.9

°F

July 5, 22:00

Trend:

decreasing

Yesterday:

87.2°F

Tomorrow:

86.6°F

Sunrise:

06:25

Sunset:

20:22

Day Length:

13 h. 57 min.

Galveston in July

Minimum:

55.9°F

Average:

60.1°F

Maximum:

64.2°F

Sea water temperature in Galveston today

As of now, in Galveston, the water temperature is 86.9°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 1.3°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 87.3°F on 2024, while the historical minimum was 83.4°F on 2018.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. 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
Jun 21 84.4°F 85.2°F 85.0°F
Jun 22 84.3°F 85.7°F 85.0°F
Jun 23 84.8°F 85.8°F 85.2°F
Jun 24 84.9°F 86.1°F 85.1°F
Jun 25 85.3°F 86.3°F 85.3°F
Jun 26 84.9°F 86.0°F 85.3°F
Jun 27 85.2°F 85.6°F 85.2°F
Jun 28 85.3°F 86.2°F 85.3°F
Jun 29 85.3°F 87.4°F 85.2°F
Jun 30 85.2°F 87.0°F 85.1°F
Jul 1 85.1°F 85.9°F 85.0°F
Jul 2 85.6°F 87.4°F 85.2°F
Jul 3 86.1°F 87.4°F 85.7°F
Jul 4 87.2°F 87.2°F 85.8°F
Jul 5 86.9°F 87.0°F 85.6°F
Jul 6 86.6°F 86.2°F 85.3°F
Jul 7 86.8°F 86.3°F 85.5°F
Jul 8 86.9°F 86.7°F 85.6°F
Jul 9 86.9°F 85.9°F 85.6°F
Jul 10 86.8°F 85.6°F 85.5°F
Jul 11 87.0°F 85.1°F 85.6°F
Jul 12 87.0°F 85.5°F 85.7°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, 72.1°F in Spring, 85.7°F in Summer, and 78.0°F in Autumn.