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Clinton Reservoir — Current Water Temperature, Annual Trends and Forecast

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

Monksville Reservoir, United States
Monksville Reservoir, United States © By Famartin, CC BY-SA 4.0

Current Water Temperature

78°F
Today
79°F
Yesterday
73°F
A Week Ago
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Water Temperature in Clinton Reservoir today is 78°F.

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 18 to July 19

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1273°F78°F
JUL 1373°F78°F
JUL 1473°F78°F
JUL 1579°F78°F
JUL 1679°F78°F
JUL 1779°F78°F
JUL 1879°F78°F
JUL 2078°F78°F
JUL 2178°F78°F
JUL 2278°F78°F
JUL 2378°F78°F
JUL 2478°F78°F
JUL 2578°F78°F
JUL 2678°F78°F

* 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
January32°F36°F41°F
February32°F34°F39°F
March32°F39°F46°F
April39°F49°F59°F
May52°F59°F68°F
June61°F67°F73°F
July70°F78°F86°F
August72°F78°F84°F
September66°F73°F81°F
October54°F60°F66°F
November43°F49°F54°F
December34°F40°F46°F

Clinton Reservoir: Water Temperature by Location

Clinton Reservoir: Weather Forecast

July 19

68°F / 75°F
dense intensity drizzle
rain: 52% | wind: 12 mph

July 20

50°F / 82°F
overcast
rain: 0% | wind: 7 mph

July 21

61°F / 79°F
moderate thunderstorm
rain: 66% | wind: 13 mph

July 22

63°F / 81°F
slight thunderstorm
rain: 81% | wind: 11 mph

July 23

52°F / 77°F
overcast
rain: 48% | wind: 11 mph

July 24

54°F / 82°F
clear sky
rain: 11% | wind: 6 mph

Location & Local Information

Clinton Reservoir’s surface water follows the seasonal rhythm typical of mid-Atlantic reservoirs. During winter months surface temperatures commonly hover near freezing, about 32–40°F (0–4°C). In spring the water warms into the 40–60°F range (4–16°C) as runoff and air temperatures rise. Peak summer surface temperatures often reach roughly 65–75°F (18–24°C), though deeper layers remain substantially cooler because of thermal stratification. By fall the surface cools back into the 50–65°F range (10–18°C) as air temperatures descend and the lake mixes.

Swimming at Clinton Reservoir is generally not allowed because the impoundment functions as part of the regional water supply and public-health and safety rules restrict direct human contact to protect source-water quality. In addition, reservoir conditions—sudden drop-offs, cold deeper water and limited lifeguard cover—create safety hazards that lead managers to prohibit open swimming. Recreational use and specific permitted activities vary by agency, so contact the managing authority for current rules, permitted uses and any seasonal exceptions.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Clinton Reservoir?
Water Temperature in Clinton Reservoir today is 78°F.
What is the water temperature in Clinton Reservoir during the summer months?
The water temperature in Clinton Reservoir in summer fluctuates in the range of 61°F - 86°F.
Is it possible to swim in Clinton Reservoir and what are the possibilities for this?
Yes, it is possible to swim in Clinton Reservoir, New Jersey. However, it's subject to certain rules and regulations such as specific swimming areas and safety guidelines.