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

53.5

°F

January 21, 18:21

Trend:

decreasing

Yesterday:

54.8°F

Tomorrow:

53.4°F

Sunrise:

07:13

Sunset:

17:48

Day Length:

10 h. 35 min.

Galveston in January

Minimum:

56.3°F

Average:

61.3°F

Maximum:

68.8°F

Sea water temperature in Galveston today

As of now, in Galveston, the water temperature is 53.5°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 4.8°F lower 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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 62.9°F on 2017, while the historical minimum was 52.3°F on 2018.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 52.6°F, the minimum temperature may reach 52.3°F, and the maximum might stay at 53.4°F.

Daily water temperature in Galveston

Date Current Year

actual* / forecast**

last year 10 years average
Jan 7 61.9°F 55.9°F 59.6°F
Jan 8 60.1°F 56.4°F 59.6°F
Jan 9 59.8°F 55.8°F 59.2°F
Jan 10 59.6°F 56.2°F 59.1°F
Jan 11 59.4°F 55.9°F 58.7°F
Jan 12 57.5°F 57.9°F 59.0°F
Jan 13 57.7°F 57.8°F 58.9°F
Jan 14 55.4°F 57.3°F 58.3°F
Jan 15 56.0°F 57.2°F 58.0°F
Jan 16 56.3°F 57.3°F 58.3°F
Jan 17 54.0°F 56.8°F 58.0°F
Jan 18 54.7°F 56.5°F 58.1°F
Jan 19 53.9°F 56.8°F 58.0°F
Jan 20 54.8°F 55.6°F 58.4°F
Jan 21 53.5°F 53.2°F 58.3°F
Jan 22 53.4°F 53.7°F 58.2°F
Jan 23 52.8°F 51.4°F 57.7°F
Jan 24 52.5°F 52.2°F 57.3°F
Jan 25 52.3°F 53.0°F 57.1°F
Jan 26 52.4°F 52.7°F 57.2°F
Jan 27 52.5°F 54.4°F 57.4°F
Jan 28 52.8°F 54.0°F 57.6°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 191 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 23, 2024, dipping to 51.4°F. The average readings by season are 60.2°F in Winter, 71.7°F in Spring, 85.6°F in Summer, and 77.8°F in Autumn.