All data are in degrees Fahrenheit

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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

52.1

°F

June 21, 08:58

Trend:

decreasing

Yesterday:

52.2°F

Tomorrow:

51.9°F

Sunrise:

04:27

Sunset:

22:17

Day Length:

17 h. 50 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 52.1°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 0.3°F lower 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 54.5°F on 2023, while the historical minimum was 51.0°F on 2024.

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 minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 52.9°F, with minimum temperature starting at 51.9°F, while the maximum might reach 53.9°F.

Daily water temperature in Fort William

Date Current Year

actual* / forecast**

last year 10 years average
Jun 7 51.5°F 50.3°F 51.4°F
Jun 8 51.2°F 50.4°F 51.6°F
Jun 9 51.6°F 50.4°F 51.7°F
Jun 10 51.9°F 50.6°F 51.9°F
Jun 11 52.3°F 51.2°F 52.1°F
Jun 12 52.1°F 51.0°F 52.3°F
Jun 13 52.1°F 51.2°F 52.5°F
Jun 14 51.4°F 51.4°F 52.5°F
Jun 15 52.1°F 51.6°F 52.4°F
Jun 16 51.8°F 51.7°F 52.4°F
Jun 17 51.5°F 51.7°F 52.3°F
Jun 18 52.0°F 51.7°F 52.3°F
Jun 19 51.9°F 52.0°F 52.3°F
Jun 20 52.2°F 52.3°F 52.2°F
Jun 21 52.1°F 53.7°F 52.4°F
Jun 22 51.9°F 52.7°F 52.1°F
Jun 23 52.2°F 53.1°F 52.5°F
Jun 24 52.6°F 53.4°F 52.8°F
Jun 25 53.0°F 53.9°F 53.2°F
Jun 26 53.1°F 54.2°F 53.4°F
Jun 27 53.7°F 54.7°F 53.9°F
Jun 28 53.9°F 55.0°F 54.2°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 56.3°F 60mi
Dumbarton 56.3°F 64mi
Houston 56.2°F 69mi

* current water temperature in this city

** straight line distance from Fort William