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Conway Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Conway 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
14.9°C
Yesterday
15.8°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 Conway 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 615.8°C16.0°C
OCT 715.8°C16.0°C
OCT 816.0°C16.0°C
OCT 914.8°C16.0°C
OCT 1015.3°C16.0°C
OCT 1115.3°C16.0°C
OCT 1214.9°C16.0°C
OCT 1314.1°C16.0°C
OCT 1416.0°C14.2°C
OCT 1516.0°C14.3°C
OCT 1616.0°C14.4°C
OCT 1716.0°C14.5°C
OCT 1816.0°C14.6°C
OCT 1916.0°C14.7°C
OCT 2016.0°C14.8°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
January2°C9°C15°C
February2°C8°C13°C
March2°C8°C13°C
April2°C9°C16°C
May7°C13°C19°C
June12°C16°C21°C
July19°C25°C31°C
August21°C23°C26°C
September19°C22°C24°C
October12°C16°C20°C
November5°C10°C13°C
December2°C5°C7°C

Conway Lake: Water Temperature by Location

Conway Lake: Weather Forecast

October 14

° / °
moderate drizzle
rain: 98% | wind:

October 15

° / °
overcast
rain: 1% | wind:

October 16

° / °
slight rain showers
rain: 82% | wind:

October 17

° / °
light drizzle
rain: 82% | wind:

October 18

° / °
overcast
snow: 5% | wind:

Location & Local Information

Conway Lake in New Hampshire experiences a wide range of water temperatures through the year. In spring, after ice-out, surface temperatures are commonly cool, roughly 40–60°F (4–16°C) as the lake warms. By summer the top layer typically rises to about 65–75°F (18–24°C), with occasional warm spells pushing parts of the surface into the mid-70s to around 80°F (24–27°C) on very hot days. In autumn the surface cools back toward 50–60°F (10–15°C) before the lake freezes; under winter ice the water near the surface stays near 32–34°F (0–1°C). These figures refer primarily to surface conditions and vary with weather, depth, wind and shading, so deeper water remains markedly colder throughout the year.

Swimming at Conway Lake is a common recreational activity and is generally allowed, particularly in summer when surface temperatures are most comfortable. Access points and private shorelines are used for swimming, but conditions can change quickly so swimmers should exercise caution: there are often no lifeguards, water quality advisories can occur, and cold-water shock is a risk outside the warmest months. Ice and winter swimming are hazardous unless ice thickness and safety have been professionally verified.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Conway Lake?
Water Temperature in Conway Lake today is 14.1°C.
What is the water temperature in Conway Lake during the summer months?
The water temperature in Conway Lake in summer fluctuates in the range of 12°C - 31°C.
Is it possible to swim in Conway Lake and what are the possibilities for this?
Yes, it is possible to swim in Conway Lake, New Hampshire. There's a public beach area available for swimming, and it also offers opportunities for boating and fishing.