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 9.9°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.

49.8

°F

May 11, 04:48

Trend:

stable

Yesterday:

49.8°F

Tomorrow:

49.6°F

Sunrise:

05:12

Sunset:

21:23

Day Length:

16 h. 11 min.

Fort William in May

Minimum:

47.4°F

Average:

47.6°F

Maximum:

48.4°F

Sea water temperature in Fort William today

As of now, in Fort William, the water temperature is 49.8°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 0.6°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 fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 50.9°F on 2016, while the historical minimum was 48.4°F on 2018.

latest data

last year

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 shows a gradual cooling trend. The average temperature is expected to be 49.4°F, the minimum temperature may reach 49.3°F, and the maximum might stay at 49.6°F.

Daily water temperature in Fort William

Date	Current Year actual* / forecast**	last year	10 years average
Apr 27	48.3°F	48.1°F	47.0°F
Apr 28	48.3°F	48.1°F	47.1°F
Apr 29	48.9°F	48.1°F	47.2°F
Apr 30	49.7°F	48.1°F	47.4°F
May 1	49.6°F	48.3°F	47.5°F
May 2	49.7°F	48.3°F	47.7°F
May 3	49.5°F	48.3°F	47.9°F
May 4	49.5°F	48.2°F	48.0°F
May 5	49.6°F	47.8°F	48.1°F
May 6	49.5°F	47.9°F	48.3°F
May 7	49.7°F	48.2°F	48.5°F
May 8	49.6°F	48.4°F	48.7°F
May 9	49.5°F	48.9°F	49.0°F
May 10	49.8°F	49.2°F	49.2°F
May 11	49.8°F	49.2°F	49.3°F
May 12	49.6°F	49.0°F	49.1°F
May 13	49.5°F	49.8°F	49.0°F
May 14	49.3°F	49.6°F	48.7°F
May 15	49.5°F	50.9°F	48.9°F
May 16	49.4°F	50.8°F	48.8°F
May 17	49.4°F	50.4°F	48.8°F
May 18	49.4°F	50.4°F	48.8°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	50.7°F	60mi
Dumbarton	50.8°F	64mi
Houston	50.8°F	69mi

* current water temperature in this city

** straight line distance from Fort William