Johns Pond — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Johns Pond, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Johns Pond today is 21°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 | 20.5°C | 17.5°C | |
| JUN 24 | 20.5°C | 17.5°C | |
| JUN 25 | 20.5°C | 17.5°C | |
| JUN 26 | 20.5°C | 17.5°C | |
| JUN 27 | 20.5°C | 17.5°C | |
| JUN 28 | 20.6°C | 17.5°C | |
| JUN 29 | 20.7°C | 17.5°C | |
| JUN 30 | 20.8°C | 17.5°C | |
| JUL 1 | 25.5°C | 21.2°C | |
| JUL 2 | 25.5°C | 21.5°C | |
| JUL 3 | 25.5°C | 21.7°C | |
| JUL 4 | 25.5°C | 21.9°C | |
| JUL 5 | 25.5°C | 22.1°C | |
| JUL 6 | 25.5°C | 22.4°C | |
| JUL 7 | 25.5°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 | 2°C | 5°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 2°C | 5°C |
| April | 1°C | 6°C | 10°C |
| May | 9°C | 13°C | 18°C |
| June | 14°C | 18°C | 21°C |
| July | 21°C | 26°C | 30°C |
| August | 23°C | 26°C | 29°C |
| September | 21°C | 25°C | 28°C |
| October | 15°C | 18°C | 21°C |
| November | 8°C | 13°C | 16°C |
| December | 2°C | 6°C | 9°C |
Johns Pond: Water Temperature by Location
Johns Pond: Weather Forecast
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Location & Local Information
Johns Pond in Massachusetts typically follows the seasonal temperature patterns common to shallow New England ponds. In spring the surface usually rises from near freezing after ice-out to roughly 35–60°F (2–16°C) as air temperatures warm. Summer surface temperatures commonly range from about 68–80°F (20–27°C), with the warmest weeks occasionally pushing surfaces toward the upper end; deeper water can remain several degrees cooler, often 5–10°F (3–6°C) lower. In autumn the pond cools again to roughly 45–65°F (7–18°C) before ice forms, and during winter the surface will be at or below freezing where ice persists, generally around 32–39°F (0–4°C) under ice-covered conditions.
Swimming at Johns Pond is generally permitted where public access, beaches or designated swimming areas exist and where local authorities consider water quality and safety acceptable. Whether swimming is allowed depends on local regulations, property ownership and periodic water-quality issues such as algal blooms, which are more likely during warm summer conditions. There may be no lifeguard on duty, and water temperature can change with depth and season, so swimmers should heed posted signs, town guidance and common-sense safety measures before entering the water.