Flaming Gorge Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Flaming Gorge Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Flaming Gorge Reservoir today is 17.2°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 6 | 17.0°C | 17.4°C | |
| JUN 7 | 17.4°C | 17.4°C | |
| JUN 8 | 17.7°C | 17.4°C | |
| JUN 10 | 17.4°C | 17.4°C | |
| JUN 11 | 17.5°C | 17.4°C | |
| JUN 12 | 17.5°C | 17.4°C | |
| JUN 13 | 17.2°C | 17.4°C | |
| JUN 14 | 17.4°C | 17.2°C | |
| JUN 15 | 17.4°C | 17.2°C | |
| JUN 16 | 17.4°C | 17.2°C | |
| JUN 17 | 17.4°C | 17.2°C | |
| JUN 18 | 17.4°C | 17.3°C | |
| JUN 19 | 17.4°C | 17.3°C | |
| JUN 20 | 17.4°C | 17.3°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 | 2°C | 4°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 7°C | 12°C |
| April | 4°C | 8°C | 13°C |
| May | 9°C | 13°C | 17°C |
| June | 12°C | 17°C | 22°C |
| July | 21°C | 26°C | 30°C |
| August | 18°C | 21°C | 23°C |
| September | 16°C | 20°C | 24°C |
| October | 9°C | 13°C | 16°C |
| November | 3°C | 6°C | 9°C |
| December | 0°C | 2°C | 5°C |
Flaming Gorge Reservoir: Water Temperature by Location
Flaming Gorge Reservoir: Weather Forecast
June 14
June 15
June 16
June 17
Location & Local Information
Flaming Gorge Reservoir sits at relatively high elevation, so its water stays cooler than lowland lakes. Seasonal surface temperatures typically run roughly 40–55°F (4–13°C) in spring, warm to about 55–75°F (13–24°C) in summer — with many open-water areas most often in the mid-60s to low 70s °F (15–22°C) on hot days — then drop back to roughly 40–60°F (4–16°C) in fall. In winter the surface can fall to near freezing, about 32–40°F (0–4°C), and portions of the reservoir may ice over in colder years. Because Flaming Gorge is deep and fed by cold mountain inflows, even summer water can feel brisk below the surface.
Swimming is generally allowed at Flaming Gorge in public recreation areas and makes for a popular activity when weather warms, but it carries some hazards and limitations. Cold water temperatures, steep drop-offs, boat traffic, and limited lifeguard coverage mean swimmers should choose designated beaches or coves, wear flotation or wetsuits in cooler conditions, and stay well clear of marinas and boat channels. Local rules and seasonal access at campgrounds or day-use sites also influence where swimming is practical and safe.