Lake Redman — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Redman, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Redman today is 17.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 | 19.9°C | 18.0°C | |
| OCT 6 | 19.9°C | 18.0°C | |
| OCT 7 | 20.3°C | 18.0°C | |
| OCT 8 | 19.5°C | 18.0°C | |
| OCT 9 | 18.8°C | 18.0°C | |
| OCT 10 | 18.9°C | 18.0°C | |
| OCT 11 | 18.8°C | 18.0°C | |
| OCT 12 | 18.4°C | 18.0°C | |
| OCT 13 | 18.0°C | 17.8°C | |
| OCT 14 | 18.0°C | 17.8°C | |
| OCT 15 | 18.0°C | 17.8°C | |
| OCT 16 | 18.0°C | 17.8°C | |
| OCT 17 | 18.0°C | 17.9°C | |
| OCT 18 | 18.0°C | 17.9°C | |
| OCT 19 | 18.0°C | 17.9°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 | 1°C | 4°C | 7°C |
| February | 1°C | 4°C | 7°C |
| March | 2°C | 6°C | 10°C |
| April | 8°C | 12°C | 17°C |
| May | 13°C | 18°C | 23°C |
| June | 17°C | 20°C | 24°C |
| July | 19°C | 24°C | 29°C |
| August | 21°C | 24°C | 28°C |
| September | 21°C | 24°C | 26°C |
| October | 12°C | 18°C | 24°C |
| November | 6°C | 11°C | 16°C |
| December | 4°C | 7°C | 10°C |
Lake Redman: Water Temperature by Location
Lake Redman: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
Lake Redman is a relatively small reservoir in south-central Pennsylvania, so its surface water temperatures follow typical mid-Atlantic seasonal patterns. In winter the surface often approaches near-freezing conditions, roughly 32–40°F (0–4°C). Spring sees a steady rise as air warms, with surface readings commonly in the 45–60°F range (7–16°C). Summer brings the warmest surface temperatures, frequently between about 68–80°F (20–27°C) on warm sunny days and occasionally touching the low 80s°F (27–29°C) during heat waves. In autumn the lake cools again, typically falling back into the 50–65°F band (10–18°C). Deeper water remains significantly colder year-round, and thermal stratification in summer means surface readings can be substantially warmer than subsurface temperatures.
Swimming at Lake Redman is generally not permitted because the lake is managed as a municipal drinking-water reservoir; prohibitions are intended to protect water quality and public health and to reduce contamination risks. In addition, facilities such as lifeguards and marked swim areas are not provided, and submerged hazards and cold deeper layers can present safety concerns. Recreational activities that are usually allowed—such as shore fishing or non-contact boating where permitted—are subject to local rules, so visitors should check current regulations before planning a visit.