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 23.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 14 | 25.3°C | 25.0°C | |
| SEP 15 | 24.4°C | 25.0°C | |
| SEP 16 | 23.3°C | 25.0°C | |
| SEP 17 | 23.8°C | 25.0°C | |
| SEP 18 | 23.9°C | 25.0°C | |
| SEP 19 | 23.9°C | 25.0°C | |
| SEP 20 | 23.3°C | 25.0°C | |
| SEP 21 | 23.3°C | 25.0°C | |
| SEP 22 | 25.0°C | 23.4°C | |
| SEP 23 | 25.0°C | 23.5°C | |
| SEP 24 | 25.0°C | 23.6°C | |
| SEP 25 | 25.0°C | 23.6°C | |
| SEP 26 | 25.0°C | 23.7°C | |
| SEP 27 | 25.0°C | 23.8°C | |
| SEP 28 | 25.0°C | 23.9°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
September 21
September 22
September 23
September 24
September 25
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.