Grasmere Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Grasmere Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Grasmere Lake today is 18.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 19.3°C | 21.8°C | |
| JUL 17 | 19.3°C | 21.8°C | |
| JUL 18 | 19.3°C | 21.8°C | |
| JUL 19 | 19.3°C | 21.8°C | |
| JUL 20 | 19.3°C | 21.8°C | |
| JUL 21 | 18.9°C | 21.8°C | |
| JUL 22 | 18.9°C | 21.8°C | |
| JUL 23 | 18.9°C | 21.8°C | |
| JUL 24 | 21.8°C | 19.0°C | |
| JUL 25 | 21.8°C | 19.2°C | |
| JUL 26 | 21.8°C | 19.3°C | |
| JUL 27 | 21.8°C | 19.5°C | |
| JUL 28 | 21.8°C | 19.6°C | |
| JUL 29 | 21.8°C | 19.8°C | |
| JUL 30 | 21.8°C | 19.9°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 | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 3°C | 7°C | 10°C |
| April | 6°C | 10°C | 13°C |
| May | 10°C | 15°C | 21°C |
| June | 13°C | 20°C | 26°C |
| July | 16°C | 22°C | 27°C |
| August | 17°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 9°C | 13°C | 17°C |
| November | 5°C | 9°C | 12°C |
| December | 3°C | 3°C | 8°C |
Grasmere Lake: Water Temperature by Location
Grasmere Lake: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
#Cumbria
Grasmere is a small Lake District lake whose water stays relatively cool year-round. Typical seasonal surface temperatures range from about 2–6 °C (36–43 °F) in winter, 5–12 °C (41–54 °F) in spring, 12–18 °C (54–64 °F) in summer on warmer days, and 6–12 °C (43–54 °F) in autumn. Because it is a modestly sheltered body of water, surface warmth can vary quickly with weather and depth, so swimmers often find the water noticeably colder below the surface even in summer.
Swimming is commonly undertaken at Grasmere but not formally regulated; there is no designated bathing facility or lifeguard service, so bathing is at your own risk. Water quality is generally good but can change after heavy rain, and swimmers should be aware of cold-water shock, underwater hazards and occasional boat traffic. The lake sits beside the village of Grasmere, close to Dove Cottage and Wordsworth-related sites, St Oswald’s Church, and numerous walking routes up Helm Crag and surrounding fells, making it an attractive spot for a combined swim and countryside visit.