Newfound Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Newfound Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Newfound Lake today is 21.3°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 23 | 19.3°C | 18.1°C | |
| JUN 24 | 19.3°C | 18.1°C | |
| JUN 25 | 19.3°C | 18.1°C | |
| JUN 26 | 19.3°C | 18.1°C | |
| JUN 27 | 19.5°C | 18.1°C | |
| JUN 28 | 19.6°C | 18.1°C | |
| JUN 29 | 19.9°C | 18.1°C | |
| JUN 30 | 19.9°C | 18.1°C | |
| JUL 1 | 25.0°C | 21.5°C | |
| JUL 2 | 25.0°C | 21.7°C | |
| JUL 3 | 25.0°C | 21.9°C | |
| JUL 4 | 25.0°C | 22.0°C | |
| JUL 5 | 25.0°C | 22.2°C | |
| JUL 6 | 25.0°C | 22.4°C | |
| JUL 7 | 25.0°C | 22.6°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 |
|---|---|---|---|
| January | 0°C | 8°C | 15°C |
| February | 0°C | 7°C | 13°C |
| March | 0°C | 7°C | 13°C |
| April | 1°C | 9°C | 16°C |
| May | 9°C | 14°C | 19°C |
| June | 14°C | 18°C | 23°C |
| July | 19°C | 25°C | 31°C |
| August | 21°C | 23°C | 26°C |
| September | 18°C | 21°C | 24°C |
| October | 11°C | 15°C | 19°C |
| November | 3°C | 8°C | 11°C |
| December | 0°C | 4°C | 7°C |
Newfound Lake: Water Temperature by Location
Newfound Lake: Weather Forecast
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Location & Local Information
Newfound Lake is a relatively deep, clear lake in central New Hampshire, so its surface temperatures change noticeably through the year and can stay cooler than shallower lakes. In spring (April–May) the water commonly ranges from roughly 40–55°F (4–13°C) as ice melts and the lake stratifies. By early summer (June) temperatures often rise into the mid‑50s to mid‑60s°F (13–18°C). Peak summer (July–August) surface readings typically reach the upper 60s to mid‑70s°F (20–24°C), and on warm, calm days can approach the mid‑70s to around 78°F (24–26°C). In September and into early fall temperatures decline back through the 60s°F (15–20°C), and in winter the lake is near freezing and often iced over (around 32°F / 0°C).
Swimming is permitted and commonly enjoyed at public beaches and private shores around Newfound Lake—there are designated access points that support recreational use—largely because the lake’s water quality and clarity are good. However, swimmers should be aware that the lake’s depth and cold thermocline can make deeper water chillier than surface readings suggest, so hypothermia risk and sudden temperature changes are factors in early and late season. Ice covers in winter make open‑water swimming unsafe except for supervised, specially arranged events.