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Long Pond — Current Water Temperature, Annual Trends and Forecast

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

Lake Winnipesaukee, United States
Lake Winnipesaukee, United States © CC BY 3.0

Current Water Temperature

22.7°C
Today
22.7°C
Yesterday
22.6°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 Long Pond today is 22.7°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

From June 20 to July 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1422.6°C21.0°C
JUL 1524.2°C21.0°C
JUL 1624.2°C21.0°C
JUL 1724.1°C21.0°C
JUL 1823.2°C21.0°C
JUL 1923.1°C21.0°C
JUL 2022.7°C21.0°C
JUL 2122.7°C21.0°C
JUL 2221.0°C22.6°C
JUL 2321.0°C22.5°C
JUL 2421.0°C22.4°C
JUL 2521.0°C22.4°C
JUL 2621.0°C22.3°C
JUL 2721.0°C22.2°C
JUL 2821.0°C22.1°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
January3°C6°C9°C
February2°C4°C7°C
March0°C3°C5°C
April0°C3°C6°C
May4°C8°C12°C
June10°C14°C18°C
July16°C21°C25°C
August15°C19°C22°C
September16°C20°C24°C
October9°C12°C15°C
November5°C9°C12°C
December4°C8°C11°C

Long Pond: Water Temperature by Location

Long Pond: Weather Forecast

July 22

° / °
violent rain showers
rain: 81% | wind:

July 23

° / °
overcast
rain: 81% | wind:

July 24

° / °
overcast
rain: 1% | wind:

July 25

° / °
overcast
rain: 2% | wind:

July 26

° / °
overcast
rain: 9% | wind:

July 27

° / °
overcast
rain: 50% | wind:

Location & Local Information

Long Pond in Maine typically follows the seasonal temperature patterns of glacial lakes in the region. In spring (March–May) surface temperatures commonly range from about 34–58°F (1–14°C) as the lake thaws and warms. By early to mid-summer (June–August) the surface often reaches roughly 65–75°F (18–24°C) on warm days, though shallow bays warm faster and deep basins remain colder. In late summer and early fall (September–October) surfaces cool back toward about 50–65°F (10–18°C), and by winter the lake usually approaches freezing, with surface temperatures at or near 32°F (0°C) where ice forms. Deeper water layers can remain substantially cooler throughout summer, often in the 40s–50s°F (4–12°C), so temperatures vary with depth and location.

Swimming is generally allowed at Long Pond at public access areas and private shorelines used for recreation, because the lake is widely used for boating and bathing; however local rules, posted signs or private property restrictions can limit access. Water temperature affects comfort and safety: summer surface temperatures are usually suitable for swimming but can still be chilly for prolonged immersion, and colder, deep water poses hypothermia and cold-shock risks. Visitors should check local guidelines, watch for changing conditions, and use caution when entering cold or unfamiliar water.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Long Pond?
Water Temperature in Long Pond today is 22.7°C.
What is the water temperature in Long Pond during the summer months?
The water temperature in Long Pond in summer fluctuates in the range of 10°C - 25°C.
Is it possible to swim in Long Pond and what are the possibilities for this?
Yes, it's possible to swim in Long Pond, Maine. Numerous vacation rentals around the lake provide direct access for swimming, and public boat launches may also serve as swimming spots.