What is the current water temperature in Dumbarton?

Q: What is the current water temperature in Dumbarton?

As of now, in Dumbarton, the water temperature is 15.89°C. 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.

United Kingdom > Dumbarton

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.

60.6

°F

June 26, 17:29

Trend:

increasing

Yesterday:

59.0°F

Tomorrow:

61.0°F

Sunrise:

04:33

Sunset:

22:08

Day Length:

17 h. 35 min.

Dumbarton in July

Minimum:

46.5°F

Average:

47.0°F

Maximum:

47.4°F

Sea water temperature in Dumbarton today

As of now, in Dumbarton, the water temperature is 60.6°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 4.4°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. 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 58.5°F on 2025, while the historical minimum was 54.6°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 61.1°F, with minimum temperature starting at 61.0°F, while the maximum might reach 61.4°F.

Daily water temperature in Dumbarton

Date	Current Year actual* / forecast**	last year	10 years average
Jun 12	55.8°F	54.6°F	54.6°F
Jun 13	56.1°F	55.4°F	55.0°F
Jun 14	56.0°F	55.0°F	55.1°F
Jun 15	56.6°F	55.1°F	55.3°F
Jun 16	56.3°F	54.9°F	55.1°F
Jun 17	55.6°F	54.8°F	54.8°F
Jun 18	55.5°F	56.0°F	55.0°F
Jun 19	55.1°F	56.7°F	54.9°F
Jun 20	55.6°F	57.4°F	55.0°F
Jun 21	56.3°F	58.6°F	55.2°F
Jun 22	56.7°F	58.9°F	55.4°F
Jun 23	57.9°F	58.7°F	55.7°F
Jun 24	58.3°F	58.6°F	55.8°F
Jun 25	59.0°F	58.6°F	56.3°F
Jun 26	60.6°F	58.5°F	56.2°F
Jun 27	61.0°F	59.0°F	56.6°F
Jun 28	61.0°F	59.0°F	56.6°F
Jun 29	61.0°F	58.6°F	56.7°F
Jun 30	61.1°F	58.4°F	56.8°F
Jul 1	61.2°F	58.1°F	56.8°F
Jul 2	61.3°F	58.2°F	56.9°F
Jul 3	61.4°F	58.5°F	57.0°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

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, 47.4°F in Spring, 57.4°F in Summer, and 54.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Alexandria	60.5°F	3mi
Houston	60.6°F	5mi
Falkirk	58.2°F	31mi
Ayr	59.1°F	33mi
Fort William	54.2°F	64mi

* current water temperature in this city

** straight line distance from Dumbarton