Lehigh River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Lehigh River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Lehigh River today is 18.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 3 | 16.3°C | 18.5°C | |
| JUN 4 | 16.9°C | 18.5°C | |
| JUN 5 | 17.4°C | 18.5°C | |
| JUN 6 | 18.0°C | 18.5°C | |
| JUN 7 | 19.0°C | 18.5°C | |
| JUN 8 | 19.0°C | 18.5°C | |
| JUN 11 | 18.5°C | 18.7°C | |
| JUN 12 | 18.5°C | 18.7°C | |
| JUN 13 | 18.5°C | 18.7°C | |
| JUN 14 | 18.5°C | 18.7°C | |
| JUN 15 | 18.5°C | 18.7°C | |
| JUN 16 | 18.5°C | 18.6°C | |
| JUN 17 | 18.5°C | 18.6°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 | 6°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 20°C | 24°C |
| August | 17°C | 21°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 13°C | 18°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 6°C | 8°C |
Lehigh River: Water Temperature by Location
Lehigh River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Source Pocono Peak Lake
• location Lehigh Township, Wayne County, Pennsylvania, U.S.
Mouth Delaware River
• location Easton, Northampton County, Pennsylvania, U.S.
Length 109 mi (175 km)
The Lehigh River, winding through eastern Pennsylvania, is a beloved destination for outdoor enthusiasts, offering activities like rafting, kayaking, and fishing. The river’s water temperature varies depending on the season, with summer temperatures typically ranging from 65°F to 75°F (18°C to 24°C). During the cooler months, especially in spring and fall, the water can drop to between 50°F and 60°F (10°C to 15°C), while in winter, it can get much colder due to snowmelt and icy conditions.
While the Lehigh River is popular for its recreational offerings, it’s not widely considered a prime location for swimming. Many sections of the river feature strong currents, especially in the gorges and rapids, which can be hazardous for casual swimmers. In calmer areas, wading and cooling off are possible, particularly in stretches closer to recreational parks or access points with shallow water. However, the river’s primary appeal lies in its scenic beauty and the thrill of water sports rather than traditional swimming experiences.
For those seeking a more leisurely swim, nearby lakes or designated swimming areas might be a better option. The Lehigh River’s charm is in its dynamic flow, which makes it a favorite for whitewater adventures rather than tranquil swimming spots.