Susquehanna River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Susquehanna River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Susquehanna River today is 21.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 2 | 21.1°C | 18.5°C | |
| JUN 3 | 21.0°C | 18.5°C | |
| JUN 4 | 19.1°C | 18.5°C | |
| JUN 5 | 20.7°C | 18.5°C | |
| JUN 6 | 20.7°C | 18.5°C | |
| JUN 7 | 21.8°C | 18.5°C | |
| JUN 8 | 21.7°C | 18.5°C | |
| JUN 10 | 18.5°C | 21.4°C | |
| JUN 11 | 18.5°C | 21.2°C | |
| JUN 12 | 18.5°C | 21.1°C | |
| JUN 13 | 18.5°C | 20.9°C | |
| JUN 14 | 18.5°C | 20.8°C | |
| JUN 15 | 18.5°C | 20.6°C | |
| JUN 16 | 18.5°C | 20.5°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 | 5°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 0°C | 6°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 | 24°C |
| September | 11°C | 17°C | 23°C |
| October | 8°C | 14°C | 19°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Susquehanna River: Water Temperature by Location
Susquehanna River: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Source Otsego Lake
• location Cooperstown, Otsego County, New York, USA
• elevation 1,191 ft (363 m)
Mouth Chesapeake Bay
• location Havre de Grace, Cecil County / Harford County, Maryland, USA
Length 444 mi (715 km)
The Susquehanna River, one of the oldest and longest rivers on the East Coast, flows through New York, Pennsylvania, and Maryland, offering diverse landscapes and water conditions. The water temperature in the Susquehanna varies throughout the year, typically rising to around 60–70°F (15–21°C) in the summer months. This makes swimming possible and somewhat pleasant in the river’s calmer stretches, particularly in the more sheltered areas. During the winter, however, the water temperature drops significantly, often below 40°F (4°C), making swimming hazardous and generally impractical.
Swimming in the Susquehanna River is less common compared to other outdoor activities, but it is still enjoyed in certain parts, particularly in parks or designated recreational areas where the current is calmer. While some people may swim or wade in the river’s slower sections, swimmers need to be aware of the river's occasional strong currents, especially in the deeper, faster-flowing areas. The river’s water quality can also vary, influenced by urban and agricultural runoff, which can impact the overall experience. Despite these considerations, the Susquehanna is a popular spot for boating, fishing, and kayaking, offering a scenic environment for various water activities.