This data the coastal Loch Ness water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Water temperature in Loch Ness today is 14°C. Based on our historical data over a period of ten years, the warmest water in this day in Loch Ness was 16°C, and the coldest 13°C. Water temperature in Loch Ness is expected to drop to 13.2°C in the next 10 days. September average water temperature in Loch Ness is 13.3°C, the minimum temperature is 8°C, and the maximum is 18°C.
Throughout the year, the water temperature in Loch Ness does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Loch Ness in winter reaches 4.7°C, in spring 7.4°C, in summer the average temperature rises to 14.5°C, and in autumn it is 10.1°C.
5 September 2025 |
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today temp |
14°C |
4 September 2025 |
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yesterday temp |
14°C |
Data in a table show Loch Ness temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Loch Ness.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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3.9°C | 4.9°C | 6.4°C | 13.3°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
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15°C | 14.8°C | 11.5°C | 5.9°C |
You may also be interested in other sections of our site for Loch Ness: Sunrise and Sunset
These figures shows the average, minimum and maximum monthly water temperature in Loch Ness. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Loch Ness on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
Month | Avr | Min | Max | |
---|---|---|---|---|
January | 4.6°C | 3°C | 8°C | cold |
Water temperature in Loch Ness in January | ||||
February | 4.7°C | 3°C | 8°C | cold |
Water temperature in Loch Ness in February | ||||
March | 5.2°C | 3°C | 12°C | cold |
Water temperature in Loch Ness in March | ||||
April | 7°C | 3°C | 11°C | cold |
Water temperature in Loch Ness in April | ||||
May | 10°C | 5°C | 15°C | cold |
Water temperature in Loch Ness in May | ||||
June | 13.6°C | 9°C | 19°C | cold |
Water temperature in Loch Ness in June | ||||
July | 14.9°C | 11°C | 19°C | cold |
Water temperature in Loch Ness in July | ||||
August | 15.1°C | 12°C | 18°C | cold |
Water temperature in Loch Ness in August | ||||
September | 13.3°C | 8°C | 18°C | cold |
Water temperature in Loch Ness in September | ||||
October | 9.8°C | 6°C | 13°C | cold |
Water temperature in Loch Ness in October | ||||
November | 7.2°C | 3°C | 11°C | cold |
Water temperature in Loch Ness in November | ||||
December | 4.9°C | 3°C | 7°C | cold |
Water temperature in Loch Ness in December |