What is the current water temperature in Fort William?

Q: What is the current water temperature in Fort William?

As of now, in Fort William, the water temperature is 14.67°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 > Fort William

Water temperature in Fort William

Detailed information about the current water temperature in Fort William. 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.

58.4

°F

August 30, 02:46

Trend:

stable

Yesterday:

58.3°F

Tomorrow:

58.3°F

Sunrise:

06:18

Sunset:

20:23

Day Length:

14 h. 5 min.

Fort William in September

Minimum:

47.2°F

Average:

47.5°F

Maximum:

47.9°F

Sea water temperature in Fort William today

As of now, in Fort William, the water temperature is 58.4°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 1.1°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 stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 58.3°F on 2025, while the historical minimum was 56.3°F on 2024.

latest data

last year

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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 57.7°F, the minimum temperature may reach 57.3°F, and the maximum might stay at 58.3°F.

Daily water temperature in Fort William

Date	Current Year actual* / forecast**	last year	10 years average
Aug 16	57.8°F	57.3°F	56.9°F
Aug 17	57.8°F	56.7°F	56.9°F
Aug 18	57.2°F	58.7°F	57.0°F
Aug 19	57.6°F	59.1°F	57.1°F
Aug 20	57.6°F	59.0°F	57.1°F
Aug 21	57.4°F	58.9°F	57.1°F
Aug 22	57.0°F	58.7°F	56.9°F
Aug 23	57.0°F	58.5°F	56.9°F
Aug 24	56.7°F	58.3°F	56.9°F
Aug 25	57.5°F	57.8°F	57.1°F
Aug 26	57.5°F	58.7°F	57.3°F
Aug 27	58.2°F	58.6°F	57.2°F
Aug 28	58.3°F	58.5°F	57.2°F
Aug 29	58.3°F	58.4°F	57.2°F
Aug 30	58.4°F	58.3°F	57.3°F
Aug 31	58.3°F	58.2°F	57.2°F
Sep 1	58.1°F	57.9°F	57.0°F
Sep 2	57.9°F	57.6°F	56.8°F
Sep 3	57.7°F	57.3°F	56.6°F
Sep 4	57.5°F	57.0°F	56.4°F
Sep 5	57.3°F	56.8°F	56.2°F
Sep 6	57.3°F	56.8°F	56.1°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 Fort William by month

In an average year, Fort William offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Fort William was recorded on August 19, 2025, reaching a 59.1°F. While the coldest temperature occurred on March 12, 2016, dipping to 43.3°F. The average readings by season are 47.3°F in Winter, 46.6°F in Spring, 54.8°F in Summer, and 54.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Alexandria	59.8°F	60mi
Dumbarton	59.9°F	64mi
Houston	59.7°F	69mi

* current water temperature in this city

** straight line distance from Fort William