Lake Piru — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Piru, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Piru today is 25.7°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 | 26.7°C | 25.2°C | |
| SEP 15 | 26.4°C | 25.2°C | |
| SEP 16 | 26.0°C | 25.2°C | |
| SEP 17 | 25.4°C | 25.2°C | |
| SEP 18 | 25.9°C | 25.2°C | |
| SEP 19 | 26.0°C | 25.2°C | |
| SEP 20 | 25.5°C | 25.2°C | |
| SEP 21 | 25.7°C | 25.2°C | |
| SEP 22 | 25.2°C | 25.7°C | |
| SEP 23 | 25.2°C | 25.7°C | |
| SEP 24 | 25.2°C | 25.6°C | |
| SEP 25 | 25.2°C | 25.6°C | |
| SEP 26 | 25.2°C | 25.6°C | |
| SEP 27 | 25.2°C | 25.6°C | |
| SEP 28 | 25.2°C | 25.5°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 | 10°C | 12°C | 15°C |
| February | 6°C | 11°C | 17°C |
| March | 8°C | 14°C | 21°C |
| April | 15°C | 19°C | 22°C |
| May | 18°C | 22°C | 26°C |
| June | 19°C | 23°C | 27°C |
| July | 23°C | 27°C | 31°C |
| August | 23°C | 28°C | 33°C |
| September | 21°C | 25°C | 30°C |
| October | 20°C | 23°C | 25°C |
| November | 17°C | 21°C | 24°C |
| December | 14°C | 17°C | 20°C |
Lake Piru: Water Temperature by Location
Lake Piru: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Lake Piru is a deep foothill reservoir and its water temperatures vary seasonally and with depth. Surface temperatures in winter typically sit around 50–60°F (10–15.5°C), warming through spring to roughly 55–65°F (13–18°C). In summer the surface can rise to about 65–80°F (18–27°C), with early fall commonly in the 60–75°F (16–24°C) range. Even when the surface is warm, deeper water remains considerably colder—often in the 40s–50s°F (4–13°C)—so thermal stratification and cold layers are common. Wind, recent rain, reservoir releases and year-to-year weather patterns all influence these figures.
Swimming at Lake Piru is not promoted by managers and there are no formal, lifeguarded swim beaches; while people do enter the water, swimming is often discouraged or restricted at times for safety and water-quality reasons. Hazards include cold shock from deep water, sudden drop-offs, submerged obstacles, boat traffic and occasional algal or bacterial advisories. Because of those risks, any swimming is effectively at one’s own risk and subject to local rules and temporary closures, so visitors are advised to check current park notices and exercise caution.