Loch Calder — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Loch Calder, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Loch Calder today is 17.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 16 | 17.9°C | 20.8°C | |
| JUL 17 | 17.5°C | 20.8°C | |
| JUL 18 | 17.4°C | 20.8°C | |
| JUL 19 | 17.4°C | 20.8°C | |
| JUL 20 | 17.4°C | 20.8°C | |
| JUL 21 | 17.9°C | 20.8°C | |
| JUL 22 | 17.9°C | 20.8°C | |
| JUL 23 | 17.9°C | 20.8°C | |
| JUL 24 | 20.8°C | 18.0°C | |
| JUL 25 | 20.8°C | 18.2°C | |
| JUL 26 | 20.8°C | 18.3°C | |
| JUL 27 | 20.8°C | 18.5°C | |
| JUL 28 | 20.8°C | 18.6°C | |
| JUL 29 | 20.8°C | 18.8°C | |
| JUL 30 | 20.8°C | 18.9°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 3°C | 6°C |
| March | 0°C | 4°C | 7°C |
| April | 4°C | 8°C | 11°C |
| May | 8°C | 13°C | 19°C |
| June | 13°C | 19°C | 24°C |
| July | 15°C | 21°C | 26°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 6°C | 10°C | 13°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 4°C | 7°C |
Loch Calder: Water Temperature by Location
Loch Calder: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
Loch Calder is a quiet freshwater lake in Caithness, in the far north of Scotland, surrounded by open farmland and gentle moorland hills. The loch’s exposed northern location and shallow depth mean its water temperature changes more noticeably with the seasons, though it remains cool overall. In winter, temperatures usually stay around 2–4 °C (36–39 °F), rising in spring to about 7–9 °C (45–48 °F). During summer, the water can reach 14–16 °C (57–61 °F) on calm, sunny days, especially near the shore, while deeper areas remain colder. By autumn, the loch gradually cools again toward 8–10 °C (46–50 °F), maintaining a crisp and refreshing feel typical of northern Scottish lakes.
Swimming in Loch Calder is allowed and often enjoyed by wild swimmers during the summer months when the water is at its warmest. The loch’s clear, calm surface makes it suitable for both short dips and longer swims, though wetsuits are recommended for comfort outside midsummer. The area is peaceful and sparsely populated, offering a sense of remoteness ideal for outdoor recreation. Fishing, kayaking, and birdwatching are also popular here. Nearby attractions include the town of Thurso, the Flow Country peatlands, and Dunnet Head, the northernmost point on the British mainland.