All data are in degrees Fahrenheit

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Water temperature in Houston

Detailed information about the current water temperature in Houston. 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 Houston now

48.3

°F

April 18, 20:07

Trend:

increasing

Yesterday:

48.2°F

Tomorrow:

48.6°F

Sunrise:

06:06

Sunset:

20:30

Day Length:

14 h. 24 min.

Houston in April

Minimum:

46.6°F

Average:

47.1°F

Maximum:

48.1°F

Sea water temperature in Houston today

As of now, in Houston, the water temperature is 48.3°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 1.5°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 rise 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 47.4°F on 2024, while the historical minimum was 45.6°F on 2018.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 49.0°F, with minimum temperature starting at 48.6°F, while the maximum might reach 49.2°F.

Daily water temperature in Houston

Date Current Year

actual* / forecast**

last year 10 years average
Apr 4 45.5°F 45.9°F 45.5°F
Apr 5 45.9°F 45.8°F 45.6°F
Apr 6 46.3°F 45.8°F 45.7°F
Apr 7 46.2°F 45.8°F 45.7°F
Apr 8 46.5°F 46.7°F 45.8°F
Apr 9 46.9°F 46.4°F 45.8°F
Apr 10 47.3°F 46.3°F 45.9°F
Apr 11 47.0°F 46.3°F 45.8°F
Apr 12 47.8°F 46.1°F 45.7°F
Apr 13 47.6°F 46.4°F 45.8°F
Apr 14 48.1°F 46.8°F 46.0°F
Apr 15 48.1°F 46.9°F 46.2°F
Apr 16 48.2°F 47.1°F 46.5°F
Apr 17 48.2°F 47.3°F 46.7°F
Apr 18 48.3°F 47.4°F 46.7°F
Apr 19 48.6°F 47.6°F 47.1°F
Apr 20 48.8°F 47.7°F 47.3°F
Apr 21 48.9°F 47.6°F 47.3°F
Apr 22 49.1°F 47.6°F 47.6°F
Apr 23 49.2°F 47.9°F 47.7°F
Apr 24 49.2°F 48.2°F 47.7°F
Apr 25 49.2°F 48.2°F 47.7°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 Houston by month

In an average year, Houston offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Houston was recorded on July 22, 2021, reaching a 62.3°F. While the coldest temperature occurred on March 14, 2015, dipping to 42.4°F. The average readings by season are 46.6°F in Winter, 47.1°F in Spring, 57.0°F in Summer, and 54.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Dumbarton 48.3°F 5mi
Alexandria 48.3°F 9mi
Ayr 48.5°F 28mi
Falkirk 47.9°F 31mi
Fort William 46.9°F 69mi

* current water temperature in this city

** straight line distance from Houston