Okanagan Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Okanagan Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Okanagan Lake today is 16.6°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 |
|---|---|---|---|
| JUN 2 | 14.5°C | 13.5°C | |
| JUN 3 | 13.1°C | 13.5°C | |
| JUN 4 | 16.1°C | 13.5°C | |
| JUN 5 | 16.2°C | 13.5°C | |
| JUN 6 | 16.2°C | 13.5°C | |
| JUN 7 | 17.0°C | 13.5°C | |
| JUN 8 | 16.8°C | 13.5°C | |
| JUN 10 | 13.5°C | 16.4°C | |
| JUN 11 | 13.5°C | 16.3°C | |
| JUN 12 | 13.5°C | 16.1°C | |
| JUN 13 | 13.5°C | 16.0°C | |
| JUN 14 | 13.5°C | 15.8°C | |
| JUN 15 | 13.5°C | 15.7°C | |
| JUN 16 | 13.5°C | 15.5°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 | 0°C | 3°C | 4°C |
| February | 0°C | 3°C | 4°C |
| March | 0°C | 3°C | 6°C |
| April | 0°C | 6°C | 12°C |
| May | 4°C | 11°C | 19°C |
| June | 7°C | 14°C | 18°C |
| July | 15°C | 18°C | 23°C |
| August | 17°C | 19°C | 24°C |
| September | 11°C | 16°C | 20°C |
| October | 7°C | 12°C | 16°C |
| November | 3°C | 6°C | 11°C |
| December | 0°C | 3°C | 6°C |
Okanagan Lake: Water Temperature by Location
Okanagan Lake: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Okanagan Lake, the centerpiece of British Columbia's Okanagan Valley, is a large, deep lake that provides excellent seasonal swimming opportunities due to the region's warm, dry climate. While the deepest water remains cold, surface temperatures warm up substantially in the summer. In the peak summer months, surface temperatures typically range from 21∘C to 26∘C (70∘F to 79∘F), with highs occasionally reaching 23.4∘C (74∘F) in late July or August, making it ideal for recreational use. In the winter, the water cools dramatically, generally falling to the range of 3∘C to 10∘C (37∘F to 50∘F).
Swimming is widely permitted and extremely popular throughout Okanagan Lake, with numerous designated public beaches in cities like Kelowna and Penticton. These municipal beaches are routinely monitored by Interior Health for water quality, specifically E. coli levels, to ensure public safety. However, when bacterial counts exceed acceptable limits, swimming advisories are temporarily issued. Outside of these monitored beaches, swimming is largely at one's own risk. Swimmers should exercise caution regarding heavy boat traffic, sudden drop-offs into deep, cold water, and the potential for cold shock if entering the water too quickly.