Long Pond — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Long Pond, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Long Pond today is 18.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 24 | 20.2°C | 19.3°C | |
| AUG 25 | 20.0°C | 19.3°C | |
| AUG 26 | 20.2°C | 19.3°C | |
| AUG 27 | 19.4°C | 19.3°C | |
| AUG 28 | 19.4°C | 19.3°C | |
| AUG 29 | 19.4°C | 19.3°C | |
| AUG 30 | 19.4°C | 19.3°C | |
| AUG 31 | 18.7°C | 19.3°C | |
| SEP 1 | 20.0°C | 18.7°C | |
| SEP 2 | 20.0°C | 18.7°C | |
| SEP 3 | 20.0°C | 18.8°C | |
| SEP 4 | 20.0°C | 18.9°C | |
| SEP 5 | 20.0°C | 19.0°C | |
| SEP 6 | 20.0°C | 19.0°C | |
| SEP 7 | 20.0°C | 19.1°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 |
|---|---|---|---|
| January | 3°C | 6°C | 9°C |
| February | 2°C | 4°C | 7°C |
| March | 0°C | 3°C | 5°C |
| April | 0°C | 3°C | 6°C |
| May | 4°C | 8°C | 12°C |
| June | 10°C | 14°C | 18°C |
| July | 16°C | 21°C | 25°C |
| August | 15°C | 19°C | 24°C |
| September | 16°C | 20°C | 24°C |
| October | 9°C | 12°C | 15°C |
| November | 5°C | 9°C | 12°C |
| December | 4°C | 8°C | 11°C |
Long Pond: Water Temperature by Location
Long Pond: Weather Forecast
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September 6
Location & Local Information
Long Pond in Maine typically follows the seasonal temperature patterns of glacial lakes in the region. In spring (March–May) surface temperatures commonly range from about 34–58°F (1–14°C) as the lake thaws and warms. By early to mid-summer (June–August) the surface often reaches roughly 65–75°F (18–24°C) on warm days, though shallow bays warm faster and deep basins remain colder. In late summer and early fall (September–October) surfaces cool back toward about 50–65°F (10–18°C), and by winter the lake usually approaches freezing, with surface temperatures at or near 32°F (0°C) where ice forms. Deeper water layers can remain substantially cooler throughout summer, often in the 40s–50s°F (4–12°C), so temperatures vary with depth and location.
Swimming is generally allowed at Long Pond at public access areas and private shorelines used for recreation, because the lake is widely used for boating and bathing; however local rules, posted signs or private property restrictions can limit access. Water temperature affects comfort and safety: summer surface temperatures are usually suitable for swimming but can still be chilly for prolonged immersion, and colder, deep water poses hypothermia and cold-shock risks. Visitors should check local guidelines, watch for changing conditions, and use caution when entering cold or unfamiliar water.