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 9.77°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.

49.6

°F

May 14, 18:49

Trend:

increasing

Yesterday:

49.4°F

Tomorrow:

49.7°F

Sunrise:

05:06

Sunset:

21:29

Day Length:

16 h. 23 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 49.6°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 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight 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 reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 49.7°F on 2016, while the historical minimum was 47.6°F on 2021.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 49.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Fort William

Date	Current Year actual* / forecast**	last year	10 years average
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	49.3°F
May 11	49.8°F	49.3°F	49.3°F
May 12	49.7°F	49.1°F	49.1°F
May 13	49.4°F	49.8°F	49.0°F
May 14	49.6°F	49.6°F	48.7°F
May 15	49.7°F	50.9°F	48.9°F
May 16	49.7°F	50.8°F	48.8°F
May 17	49.7°F	50.4°F	48.8°F
May 18	49.6°F	50.4°F	48.8°F
May 19	49.7°F	49.7°F	48.8°F
May 20	49.8°F	49.8°F	49.0°F
May 21	50.1°F	50.3°F	49.2°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	51.0°F	60mi
Dumbarton	51.0°F	64mi
Houston	51.1°F	69mi

* current water temperature in this city

** straight line distance from Fort William