Blue Mesa Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Blue Mesa Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Blue Mesa Reservoir today is 16.5°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 |
|---|---|---|---|
| SEP 15 | 17.6°C | 20.0°C | |
| SEP 16 | 17.1°C | 20.0°C | |
| SEP 17 | 17.5°C | 20.0°C | |
| SEP 18 | 17.5°C | 20.0°C | |
| SEP 19 | 17.2°C | 20.0°C | |
| SEP 20 | 16.8°C | 20.0°C | |
| SEP 21 | 16.3°C | 20.0°C | |
| SEP 22 | 16.5°C | 20.0°C | |
| SEP 23 | 20.0°C | 16.7°C | |
| SEP 24 | 20.0°C | 16.9°C | |
| SEP 25 | 20.0°C | 17.0°C | |
| SEP 26 | 20.0°C | 17.2°C | |
| SEP 27 | 20.0°C | 17.4°C | |
| SEP 28 | 20.0°C | 17.6°C | |
| SEP 29 | 20.0°C | 17.7°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 | 1°C | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 3°C | 6°C | 9°C |
| May | 4°C | 9°C | 14°C |
| June | 11°C | 15°C | 19°C |
| July | 16°C | 22°C | 26°C |
| August | 20°C | 22°C | 25°C |
| September | 18°C | 20°C | 22°C |
| October | 12°C | 15°C | 18°C |
| November | 3°C | 9°C | 13°C |
| December | 0°C | 2°C | 4°C |
Blue Mesa Reservoir: Water Temperature by Location
Blue Mesa Reservoir: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Blue Mesa Reservoir, high in Colorado’s Gunnison Basin, tends to have relatively cold water year-round because it is deep, fed by mountain snowmelt, and sits at high elevation. Surface temperatures in summer typically reach the mid-50s to upper-60s °F (about 13–20 °C) on warm afternoons, though they can be cooler early or late in the season. In spring and fall, surface readings commonly fall in the 40s to mid-50s °F (4–13 °C). Winter conditions often bring near-freezing water at the surface, roughly 32–40 °F (0–4 °C), and some sheltered bays may develop ice; deeper water remains substantially colder throughout the year.
Swimming is permitted at Blue Mesa in designated shoreline and beach areas during the warmer months, and the state park maintains access points for swimmers. However, the cold water temperatures, sudden drop-offs and variable currents mean swimmers face real hypothermia and safety risks even in summer, so many visitors wear wetsuits or limit time in the water. There are generally no lifeguards at most spots, so responsible precautions—checking conditions, staying close to shore, and using flotation—are advised when entering the reservoir.