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Cowanesque Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Cowanesque Lake, trends, monthly ranges and the forecast for the coming days.

Keuka Lake, United States
Keuka Lake, United States © By Theghostofmojo, CC BY 4.0

Current Water Temperature

25.1°C
Today
25.0°C
Yesterday
22.8°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Cowanesque Lake today is 25.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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

From June 20 to July 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1422.8°C23.6°C
JUL 1526.2°C23.6°C
JUL 1626.2°C23.6°C
JUL 1726.3°C23.6°C
JUL 1826.3°C23.6°C
JUL 1925.1°C23.6°C
JUL 2025.0°C23.6°C
JUL 2124.6°C23.6°C
JUL 2223.6°C25.0°C
JUL 2323.6°C25.0°C
JUL 2423.6°C24.9°C
JUL 2523.6°C24.8°C
JUL 2623.6°C24.7°C
JUL 2723.6°C24.7°C
JUL 2823.6°C24.6°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
January0°C4°C6°C
February0°C4°C7°C
March0°C4°C7°C
April4°C9°C14°C
May10°C16°C22°C
June15°C20°C24°C
July20°C24°C27°C
August20°C25°C29°C
September17°C21°C25°C
October13°C16°C19°C
November6°C12°C16°C
December1°C5°C8°C

Cowanesque Lake: Water Temperature by Location

Cowanesque Lake: Weather Forecast

July 22

° / °
slight rain showers
rain: 31% | wind:

July 23

° / °
overcast
rain: 4% | wind:

July 24

° / °
overcast
rain: 0% | wind:

July 25

° / °
overcast
rain: 4% | wind:

July 26

° / °
overcast
rain: 20% | wind:

Location & Local Information

Cowanesque Lake is a man-made reservoir in northern Pennsylvania whose surface temperatures follow the seasonal cycle common to inland lakes in the region. In winter the water typically hovers near freezing, roughly 32–40°F (0–4°C), often forming ice in shallower bays. Spring warming brings temperatures into the 40–60°F range (4–15°C) as the lake mixes and runoff cools surface layers. By summer the warmest surface readings usually fall between about 65–78°F (18–26°C), with late summer occasionally pushing slightly higher in shallow, sheltered embayments. Temperatures decline again in autumn to roughly 45–65°F (7–18°C) as air cooling and turnover reduce surface warmth. Deeper water remains noticeably colder year-round, so thermal stratification and sudden cold layers can be a hazard.

Swimming status at Cowanesque Lake is influenced by management and safety considerations rather than temperature alone. The lake is managed by the U.S. Army Corps of Engineers and does not offer extensive lifeguarded beaches; as a result swimming is generally either allowed only in designated areas or done at visitors’ own risk, and local rules or posted signs should be followed. Restrictions and discouragements stem from safety issues—cold-water shock, submerged hazards, variable depths, and boat traffic—so anyone choosing to swim should be aware of conditions, wear a life jacket if appropriate, and heed on-site guidance.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Cowanesque Lake?
Water Temperature in Cowanesque Lake today is 25.1°C.
What is the water temperature in Cowanesque Lake during the summer months?
The water temperature in Cowanesque Lake in summer fluctuates in the range of 15°C - 29°C.
Is it possible to swim in Cowanesque Lake and what are the possibilities for this?
Yes, swimming is permitted in Cowanesque Lake, Pennsylvania. The lake offers designated swimming areas, often with lifeguards on duty during specific hours.