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Cobbosseecontee Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Cobbosseecontee Lake, 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

14.1°C
Today
15.5°C
Yesterday
17.5°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 Cobbosseecontee Lake today is 14.1°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 September 12 to October 13

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 517.5°C17.0°C
OCT 616.1°C17.0°C
OCT 716.1°C17.0°C
OCT 816.4°C17.0°C
OCT 915.2°C17.0°C
OCT 1015.2°C17.0°C
OCT 1115.5°C17.0°C
OCT 1214.9°C17.0°C
OCT 1317.0°C14.2°C
OCT 1417.0°C14.4°C
OCT 1517.0°C14.5°C
OCT 1617.0°C14.7°C
OCT 1717.0°C14.8°C
OCT 1817.0°C15.0°C
OCT 1917.0°C15.1°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
January0°C3°C5°C
February0°C3°C5°C
March0°C3°C5°C
April1°C4°C8°C
May7°C11°C15°C
June11°C16°C20°C
July20°C25°C29°C
August22°C25°C28°C
September20°C23°C26°C
October13°C17°C21°C
November4°C9°C14°C
December2°C5°C8°C

Cobbosseecontee Lake: Water Temperature by Location

Cobbosseecontee Lake: Weather Forecast

October 13

° / °
moderate rain
rain: 84% | wind:

October 14

° / °
slight rain
rain: 86% | wind:

October 15

° / °
overcast
rain: 7% | wind:

October 16

° / °
dense intensity drizzle
rain: 47% | wind:

October 17

° / °
dense intensity drizzle
rain: 47% | wind:

Location & Local Information

Cobbosseecontee Lake in Maine exhibits the typical seasonal variability of a northern temperate lake. Surface water in spring often ranges from about 40–55°F (4–13°C) as the lake stratifies and warms. By early summer temperatures commonly rise to roughly 55–68°F (13–20°C), with midsummer surface readings frequently between 68–75°F (20–24°C) in sheltered, shallow areas and occasionally warmer in late heat spells. As autumn arrives the surface cools back toward 50–60°F (10–16°C) before dropping to near freezing under ice in winter, commonly around 32–39°F (0–4°C) beneath the cover. Temperatures vary with depth, location, wind, and recent weather, so deeper basins remain distinctly cooler than sunlit shallows.

Swimming on Cobbosseecontee is generally allowed and is a common recreational use during the warm months because summer surface temperatures are often comfortable for bathing. Public access points and private beaches provide places to enter the water, but conditions are not uniformly ideal: aquatic vegetation, boat traffic, sudden drop-offs, and occasional algal issues can affect safety and enjoyment, and lifeguards are not always present. In contrast, winter swimming is unsafe and impractical due to ice cover and near‑freezing water temperatures, so people avoid open-water swimming outside the warmer season.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Cobbosseecontee Lake?
Water Temperature in Cobbosseecontee Lake today is 14.1°C.
What is the water temperature in Cobbosseecontee Lake during the summer months?
The water temperature in Cobbosseecontee Lake in summer fluctuates in the range of 11°C - 29°C.
Is it possible to swim in Cobbosseecontee Lake and what are the possibilities for this?
Yes, it is possible to swim in Cobbosseecontee Lake in Maine. The lake's clean water, public access points, and warm summer temperatures make it a favourable destination for swimming.