Pa-799 Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Pa-799 Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Pa-799 Reservoir today is 14.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| OCT 5 | 17.7°C | 18.0°C | |
| OCT 6 | 17.1°C | 18.0°C | |
| OCT 7 | 16.4°C | 18.0°C | |
| OCT 8 | 16.2°C | 18.0°C | |
| OCT 9 | 15.4°C | 18.0°C | |
| OCT 10 | 15.6°C | 18.0°C | |
| OCT 11 | 15.4°C | 18.0°C | |
| OCT 12 | 14.8°C | 18.0°C | |
| OCT 13 | 18.0°C | 14.4°C | |
| OCT 14 | 18.0°C | 14.6°C | |
| OCT 15 | 18.0°C | 14.8°C | |
| OCT 16 | 18.0°C | 15.0°C | |
| OCT 17 | 18.0°C | 15.2°C | |
| OCT 18 | 18.0°C | 15.3°C | |
| OCT 19 | 18.0°C | 15.5°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 | 0°C | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 0°C | 4°C | 7°C |
| April | 3°C | 9°C | 15°C |
| May | 10°C | 16°C | 21°C |
| June | 15°C | 19°C | 23°C |
| July | 20°C | 25°C | 29°C |
| August | 21°C | 24°C | 27°C |
| September | 18°C | 22°C | 26°C |
| October | 12°C | 18°C | 24°C |
| November | 5°C | 11°C | 16°C |
| December | 0°C | 5°C | 10°C |
Pa-799 Reservoir: Water Temperature by Location
Pa-799 Reservoir: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
The small reservoir along PA-799 typically follows the seasonal thermal patterns common to mid-Atlantic impoundments. Surface water in late winter and early spring often hovers near freezing up to about 33–45°F (0.5–7°C) as ice forms or thaws. By late spring temperatures commonly rise into the mid 40s to mid 60s °F (7–18°C), and in summer the upper layers can warm substantially, often ranging from roughly 68–80°F (20–27°C) on warm afternoons, especially in shallow bays. Deeper water remains markedly cooler year-round, and in summer the thermocline can create a sharp temperature contrast between warm surface water and colder depths below, which may stay in the 40s–50s °F (4–12°C).
Whether swimming is allowed at the PA-799 reservoir depends on local management and the reservoir’s purpose. If the impoundment serves as a drinking-water supply or lacks lifeguarded, supervised areas, swimming is frequently prohibited to protect water quality and reduce safety risks; conversely, some reservoirs permit swimming in designated areas during the warmer months when surface temperatures are comfortable. Health and safety concerns that influence access include bacterial or algal blooms, cold-water shock from sudden depth changes, underwater hazards, and the absence of rescue services, so visitors should follow posted rules and local authority guidance before entering the water.