Harrisburg — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Harrisburg, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Harrisburg today is 21°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 3 | 17.5°C | 18.5°C | |
| JUN 4 | 17.8°C | 18.5°C | |
| JUN 5 | 18.5°C | 18.5°C | |
| JUN 6 | 19.0°C | 18.5°C | |
| JUN 7 | 19.4°C | 18.5°C | |
| JUN 8 | 20.4°C | 18.5°C | |
| JUN 10 | 21.0°C | 18.5°C | |
| JUN 11 | 18.5°C | 20.9°C | |
| JUN 12 | 18.5°C | 20.8°C | |
| JUN 13 | 18.5°C | 20.6°C | |
| JUN 14 | 18.5°C | 20.5°C | |
| JUN 15 | 18.5°C | 20.4°C | |
| JUN 16 | 18.5°C | 20.3°C | |
| JUN 17 | 18.5°C | 20.1°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 | 3°C | 8°C | 12°C |
| April | 5°C | 12°C | 18°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 21°C | 25°C |
| August | 17°C | 21°C | 24°C |
| September | 11°C | 16°C | 21°C |
| October | 8°C | 14°C | 20°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 5°C | 8°C |
Harrisburg: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
In Harrisburg, Pennsylvania, the Susquehanna River is a prominent waterway that runs through the city. The water temperature in the river varies depending on the season. During the warmer months of summer, the river can reach temperatures of around 70°F to 80°F (21°C to 27°C), making it more comfortable for recreational activities like wading and kayaking. However, during the colder months, especially in the winter, the water temperature can drop to as low as 40°F (4°C), making swimming unsafe and impractical.
While the Susquehanna River in Harrisburg is a scenic spot for boating, fishing, and kayaking, it is generally not used for swimming. The river has strong currents, especially in certain areas, and the water quality can fluctuate due to runoff from surrounding urban and rural areas. This can sometimes lead to pollution concerns, making it less than ideal for swimming. Although local residents enjoy the river for its beauty and recreational opportunities, safety concerns regarding the currents and water quality prevent it from being a popular swimming destination.
If you're looking to swim in Harrisburg, you may want to explore nearby swimming pools, local parks, or other controlled bodies of water. The city's public pools and the nearby lakes or recreational facilities offer a safer environment for swimming, where water quality and conditions are better managed. While the Susquehanna provides great opportunities for other water activities, swimming directly in the river is not recommended.