Douglas Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Douglas Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Douglas Lake today is 19.1°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 14 | 17.3°C | 17.5°C | |
| JUL 15 | 18.3°C | 17.5°C | |
| JUL 16 | 18.3°C | 17.5°C | |
| JUL 17 | 18.6°C | 17.5°C | |
| JUL 18 | 19.1°C | 17.5°C | |
| JUL 19 | 20.4°C | 17.5°C | |
| JUL 20 | 20.4°C | 17.5°C | |
| JUL 21 | 19.1°C | 17.5°C | |
| JUL 22 | 17.5°C | 19.0°C | |
| JUL 23 | 17.5°C | 18.9°C | |
| JUL 24 | 17.5°C | 18.9°C | |
| JUL 25 | 17.5°C | 18.8°C | |
| JUL 26 | 17.5°C | 18.7°C | |
| JUL 27 | 17.5°C | 18.6°C | |
| JUL 28 | 17.5°C | 18.5°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 | 4°C | 7°C |
| March | 1°C | 4°C | 7°C |
| April | 1°C | 5°C | 10°C |
| May | 0°C | 7°C | 14°C |
| June | 8°C | 13°C | 17°C |
| July | 14°C | 18°C | 21°C |
| August | 16°C | 18°C | 21°C |
| September | 13°C | 17°C | 20°C |
| October | 6°C | 11°C | 16°C |
| November | 3°C | 7°C | 10°C |
| December | 2°C | 6°C | 9°C |
Douglas Lake: Water Temperature by Location
Douglas Lake: Weather Forecast
July 22
July 23
July 24
July 25
Location & Local Information
Douglas Lake, located in the south-central interior of British Columbia near Merritt, is a large, shallow freshwater lake surrounded by rolling grasslands and ranch country. Because of its elevation and open landscape, the lake’s water temperature changes noticeably with the seasons. In early spring, after the ice melts in April, the water remains quite cold at around 41–46°F (5–8°C). As air temperatures rise through May and June, the surface warms to approximately 55–64°F (13–18°C). The warmest period occurs in July and August, when the lake can reach 68–73°F (20–23°C) in its shallower sections. By late September, cooler nights and shorter days cause the temperature to fall again to below 59°F (15°C).
Swimming in Douglas Lake is allowed, but it is not a common activity compared to fishing or boating. The lake is known primarily for its excellent trout fishing and private ranch ownership, meaning much of the shoreline is not open for general public access. For those who do find permitted areas to enter the water, swimming is possible during the summer months when the temperature is most comfortable. However, the shallow depth and surrounding marshy terrain make it better suited for brief swims or wading rather than long recreational swimming sessions.