Lake Wentworth — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Wentworth, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Wentworth today is 24.2°C.
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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 4 | 24.9°C | 23.3°C | |
| AUG 5 | 24.9°C | 23.3°C | |
| AUG 6 | 24.7°C | 23.3°C | |
| AUG 7 | 24.8°C | 23.3°C | |
| AUG 8 | 24.9°C | 23.3°C | |
| AUG 9 | 25.1°C | 23.3°C | |
| AUG 10 | 24.2°C | 23.3°C | |
| AUG 11 | 24.2°C | 23.3°C | |
| AUG 12 | 23.3°C | 24.2°C | |
| AUG 13 | 23.3°C | 24.1°C | |
| AUG 14 | 23.3°C | 24.1°C | |
| AUG 15 | 23.3°C | 24.0°C | |
| AUG 16 | 23.3°C | 24.0°C | |
| AUG 17 | 23.3°C | 23.9°C | |
| AUG 18 | 23.3°C | 23.9°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 | 2°C | 9°C | 15°C |
| February | 2°C | 8°C | 13°C |
| March | 4°C | 9°C | 14°C |
| April | 3°C | 10°C | 16°C |
| May | 8°C | 14°C | 19°C |
| June | 14°C | 18°C | 22°C |
| July | 20°C | 26°C | 31°C |
| August | 21°C | 23°C | 26°C |
| September | 19°C | 22°C | 24°C |
| October | 13°C | 16°C | 19°C |
| November | 5°C | 9°C | 13°C |
| December | 2°C | 5°C | 7°C |
Lake Wentworth: Water Temperature by Location
Lake Wentworth: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Lake Wentworth, in eastern New Hampshire, experiences typical New England seasonal shifts in water temperature. In summer the surface commonly warms to the mid-60s to mid-70s °F (about 18–24 °C), with the warmest weeks sometimes pushing temperatures slightly higher near shore. Spring and fall see a broader window, roughly 40–60 °F (4–15 °C), as the lake cools after winter or slowly gains heat before summer. In winter the lake is often at or just above freezing at the surface, roughly 32–36 °F (0–2 °C) when ice forms; deeper layers remain colder and stratification means temperatures vary significantly with depth.
Swimming is permitted and commonly practiced in the warmer months because public beaches and many private shorelines provide recreational access and summer surface temperatures frequently reach comfortable ranges for bathing. Recreational use depends on local water-quality monitoring and occasional advisories for algal blooms or bacteria, so checking current notices is sensible. Early- and late-season swimming carries cold-water risks such as cold shock and reduced endurance, and winter conditions generally make regular swimming impractical except for organized ice-swimming with proper safety measures.