Indian Valley Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Indian Valley Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Indian Valley Reservoir today is 30.3°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 4 | 29.4°C | 27.1°C | |
| AUG 5 | 29.4°C | 27.1°C | |
| AUG 6 | 29.2°C | 27.1°C | |
| AUG 7 | 30.0°C | 27.1°C | |
| AUG 8 | 30.0°C | 27.1°C | |
| AUG 9 | 29.9°C | 27.1°C | |
| AUG 10 | 30.3°C | 27.1°C | |
| AUG 11 | 30.3°C | 27.1°C | |
| AUG 12 | 27.1°C | 30.1°C | |
| AUG 13 | 27.1°C | 30.0°C | |
| AUG 14 | 27.1°C | 29.8°C | |
| AUG 15 | 27.1°C | 29.7°C | |
| AUG 16 | 27.1°C | 29.5°C | |
| AUG 17 | 27.1°C | 29.3°C | |
| AUG 18 | 27.1°C | 29.2°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 | 7°C | 9°C | 12°C |
| February | 3°C | 7°C | 11°C |
| March | 7°C | 11°C | 16°C |
| April | 11°C | 14°C | 17°C |
| May | 15°C | 19°C | 24°C |
| June | 21°C | 25°C | 28°C |
| July | 24°C | 27°C | 30°C |
| August | 24°C | 27°C | 31°C |
| September | 23°C | 25°C | 27°C |
| October | 18°C | 21°C | 24°C |
| November | 11°C | 15°C | 19°C |
| December | 8°C | 11°C | 13°C |
Indian Valley Reservoir: Water Temperature by Location
Indian Valley Reservoir: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
The Lake of Indian Valley Reservoir in northern California typically has cool surface waters that vary by season. In winter the surface often falls to about 35–45°F (2–7°C), spring brings a gradual rise to roughly 45–60°F (7–16°C), and summer surface temperatures commonly reach about 60–75°F (16–24°C) in shallow areas on warm afternoons. By autumn the lake usually cools back to roughly 50–65°F (10–18°C). Deeper water and shaded coves remain noticeably colder year-round, and thermal stratification in summer can create a sharp temperature drop below the warmed surface layer.
Swimming is generally possible at Indian Valley Reservoir because the area is managed for recreation, but opportunities are seasonal and depend on conditions and posted rules. There are often no lifeguards, so swimmers should exercise caution: cold shock from sudden immersion, cold hypothermia risk in deeper water, changing water levels, boat traffic, and occasional water-quality advisories (including algal blooms) affect safety. Local signage and forest or reservoir management updates should be checked before entering the water; when allowed, summer months offer the most comfortable surface temperatures for recreational swimming.