Lake Purdy — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Purdy, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Purdy today is 29.5°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 | 29.2°C | 27.5°C | |
| AUG 5 | 29.1°C | 27.5°C | |
| AUG 6 | 29.3°C | 27.5°C | |
| AUG 7 | 29.3°C | 27.5°C | |
| AUG 8 | 29.4°C | 27.5°C | |
| AUG 9 | 29.7°C | 27.5°C | |
| AUG 10 | 29.9°C | 27.5°C | |
| AUG 11 | 29.4°C | 27.5°C | |
| AUG 12 | 27.5°C | 29.4°C | |
| AUG 13 | 27.5°C | 29.3°C | |
| AUG 14 | 27.5°C | 29.2°C | |
| AUG 15 | 27.5°C | 29.1°C | |
| AUG 16 | 27.5°C | 29.0°C | |
| AUG 17 | 27.5°C | 28.9°C | |
| AUG 18 | 27.5°C | 28.8°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 | 5°C | 11°C | 17°C |
| February | 5°C | 11°C | 17°C |
| March | 9°C | 15°C | 21°C |
| April | 15°C | 19°C | 23°C |
| May | 17°C | 22°C | 27°C |
| June | 18°C | 23°C | 28°C |
| July | 18°C | 25°C | 32°C |
| August | 23°C | 28°C | 32°C |
| September | 22°C | 27°C | 31°C |
| October | 18°C | 24°C | 29°C |
| November | 10°C | 14°C | 19°C |
| December | 7°C | 12°C | 16°C |
Lake Purdy: Water Temperature by Location
Lake Purdy: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Lake Purdy, located southeast of Birmingham, Alabama, is a tranquil reservoir surrounded by wooded hills and serves as part of the region’s public water supply system. Its water temperature reflects the mild seasonal variation typical of central Alabama’s humid subtropical climate. In winter, the surface temperature generally ranges from 45 to 52°F (7–11°C), remaining cool but well above freezing. As spring arrives, the lake warms gradually to around 60–70°F (16–21°C) by May. During summer, Lake Purdy reaches its warmest period, averaging 80–85°F (27–29°C) in July and August. In autumn, temperatures decline slowly to about 65–72°F (18–22°C) before dropping back toward winter values.
Because Lake Purdy functions as a protected drinking water source, swimming is not allowed. Recreational use of the lake is limited to fishing and boating under specific regulations managed by the Birmingham Water Works Board. These restrictions help maintain water quality for the metropolitan area. While swimming is prohibited, visitors can still enjoy the peaceful natural surroundings, wildlife viewing, and fishing opportunities. Those seeking to swim nearby often visit other public lakes or park areas in Jefferson and Shelby Counties. As a result, Lake Purdy remains a clean and quiet body of water reserved for essential and conservation purposes.