Barr Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Barr Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Barr Lake today is 29.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 |
|---|---|---|---|
| AUG 26 | 28.9°C | 28.1°C | |
| AUG 27 | 30.4°C | 28.1°C | |
| AUG 28 | 29.7°C | 28.1°C | |
| AUG 29 | 30.0°C | 28.1°C | |
| AUG 30 | 30.1°C | 28.1°C | |
| AUG 31 | 30.0°C | 28.1°C | |
| SEP 1 | 29.9°C | 24.0°C | |
| SEP 2 | 29.9°C | 24.0°C | |
| SEP 3 | 24.0°C | 29.6°C | |
| SEP 4 | 24.0°C | 29.3°C | |
| SEP 5 | 24.0°C | 29.0°C | |
| SEP 6 | 24.0°C | 28.7°C | |
| SEP 7 | 24.0°C | 28.4°C | |
| SEP 8 | 24.0°C | 28.1°C | |
| SEP 9 | 24.0°C | 27.8°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 | 6°C |
| February | 1°C | 8°C | 15°C |
| March | 5°C | 11°C | 17°C |
| April | 8°C | 14°C | 20°C |
| May | 12°C | 18°C | 24°C |
| June | 20°C | 24°C | 28°C |
| July | 21°C | 27°C | 33°C |
| August | 24°C | 28°C | 33°C |
| September | 21°C | 24°C | 27°C |
| October | 13°C | 17°C | 21°C |
| November | 6°C | 10°C | 14°C |
| December | 2°C | 6°C | 9°C |
Barr Lake: Water Temperature by Location
Barr Lake: Weather Forecast
September 3
September 4
September 5
September 6
September 7
September 8
Location & Local Information
Barr Lake is a shallow reservoir on the Colorado plains whose water temperature changes a lot with the seasons and with depth. In spring the surface typically runs cool, roughly 40–60°F (4–16°C) as runoff and cooling weather dominate. By midsummer surface temperatures commonly warm into the mid‑60s to low‑80s °F (about 18–28°C) on sunny days, while deeper water stays several degrees cooler. In autumn the lake cools back toward the 40s–60s °F (4–16°C), and in winter the surface can approach freezing, roughly 32–40°F (0–4°C), especially under ice and cold spells. Local wind, shading and river inflow also cause short‑term swings and areas of warmer or cooler water.
Swimming in Barr Lake is not permitted; the park manages the reservoir for wildlife habitat and water supply functions, and contact recreation is restricted to protect water quality, sensitive birds and other wildlife. In addition, hazards such as shallow dropoffs, boat traffic, vegetation, and occasional algae make unsupervised water contact unsafe. Visitors can enjoy the lake from shore, trails, observation points and by non‑contact boating activities where allowed, but entering the water for swimming is prohibited to meet environmental and safety objectives.