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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.
Sea temperature in Fort William now

50.9

°F

June 6, 05:44

Trend:

increasing

Yesterday:

50.7°F

Tomorrow:

51.0°F

Sunrise:

04:32

Sunset:

22:07

Day Length:

17 h. 35 min.

Fort William in June

Minimum:

47.3°F

Average:

47.6°F

Maximum:

48.3°F

Sea water temperature in Fort William today

As of now, in Fort William, the water temperature is 50.9°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 0.4°F lower 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

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 52.6°F on 2016, while the historical minimum was 50.2°F on 2025.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 51.5°F, with minimum temperature starting at 51.0°F, while the maximum might reach 52.1°F.

Daily water temperature in Fort William

Date Current Year

actual* / forecast**

 last year 10 years average
May 23 49.1°F 50.2°F 49.4°F
May 24 49.7°F 50.2°F 49.7°F
May 25 50.2°F 50.4°F 50.0°F
May 26 50.1°F 50.3°F 50.0°F
May 27 50.8°F 50.3°F 50.1°F
May 28 50.6°F 50.2°F 50.0°F
May 29 50.6°F 50.1°F 50.1°F
May 30 50.1°F 50.1°F 50.2°F
May 31 50.1°F 50.1°F 50.4°F
Jun 1 50.3°F 50.2°F 50.4°F
Jun 2 50.6°F 50.3°F 50.7°F
Jun 3 50.7°F 50.4°F 50.8°F
Jun 4 50.4°F 50.0°F 50.8°F
Jun 5 50.7°F 50.2°F 51.1°F
Jun 6 50.9°F 50.2°F 51.2°F
Jun 7 51.0°F 50.3°F 51.4°F
Jun 8 51.2°F 50.4°F 51.6°F
Jun 9 51.3°F 50.4°F 51.7°F
Jun 10 51.5°F 50.6°F 51.9°F
Jun 11 51.7°F 51.2°F 52.1°F
Jun 12 51.9°F 51.0°F 52.3°F
Jun 13 52.1°F 51.2°F 52.5°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

January

February

March

April

May

June

July

August

September

October

November

December

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 53.7°F 60mi
Dumbarton 53.7°F 64mi
Houston 53.8°F 69mi

* current water temperature in this city

** straight line distance from Fort William