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Water temperature in Dumbarton

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

44.5

°F

March 11, 12:11

Trend:

decreasing

Yesterday:

44.7°F

Tomorrow:

44.4°F

Sunrise:

06:45

Sunset:

18:13

Day Length:

11 h. 28 min.

Dumbarton in March

Minimum:

46.7°F

Average:

47.3°F

Maximum:

48.4°F

Sea water temperature in Dumbarton today

As of now, in Dumbarton, the water temperature is 44.5°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 about the same as 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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 45.3°F on 2025, while the historical minimum was 43.1°F on 2016.

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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 44.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Dumbarton

Date Current Year

actual* / forecast**

 last year 10 years average
Feb 25 44.7°F 45.1°F 44.6°F
Feb 26 44.8°F 45.0°F 44.6°F
Feb 27 44.8°F 44.8°F 44.5°F
Feb 28 45.4°F 44.6°F 44.4°F
Mar 1 45.1°F 44.5°F 44.4°F
Mar 2 45.1°F 44.5°F 44.4°F
Mar 3 45.8°F 44.5°F 44.5°F
Mar 4 44.9°F 44.4°F 44.3°F
Mar 5 44.3°F 44.4°F 44.2°F
Mar 6 44.1°F 44.3°F 44.2°F
Mar 7 44.5°F 44.8°F 44.3°F
Mar 8 44.7°F 44.7°F 44.3°F
Mar 9 44.4°F 45.2°F 44.4°F
Mar 10 44.7°F 45.0°F 44.4°F
Mar 11 44.5°F 45.3°F 44.3°F
Mar 12 44.4°F 45.2°F 44.2°F
Mar 13 44.3°F 45.0°F 44.1°F
Mar 14 44.2°F 44.8°F 44.0°F
Mar 15 44.2°F 44.8°F 44.0°F
Mar 16 44.2°F 45.2°F 44.1°F
Mar 17 44.4°F 45.2°F 44.2°F
Mar 18 44.6°F 45.3°F 44.4°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 Dumbarton by month

January

February

March

April

May

June

July

August

September

October

November

December

In an average year, Dumbarton offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Dumbarton was recorded on July 22, 2021, reaching a 62.5°F. While the coldest temperature occurred on March 14, 2016, dipping to 42.8°F. The average readings by season are 46.7°F in Winter, 47.3°F in Spring, 57.4°F in Summer, and 54.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Alexandria 44.4°F 3mi
Houston 44.5°F 5mi
Falkirk 43.8°F 31mi
Ayr 45.1°F 33mi
Fort William 44.4°F 64mi

* current water temperature in this city

** straight line distance from Dumbarton