Grass Pond — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Grass Pond, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Grass Pond today is 18.5°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 |
|---|---|---|---|
| SEP 13 | 18.9°C | 19.0°C | |
| SEP 14 | 18.5°C | 19.0°C | |
| SEP 15 | 19.3°C | 19.0°C | |
| SEP 16 | 18.5°C | 19.0°C | |
| SEP 17 | 18.4°C | 19.0°C | |
| SEP 18 | 17.9°C | 19.0°C | |
| SEP 19 | 18.4°C | 19.0°C | |
| SEP 20 | 18.9°C | 19.0°C | |
| SEP 21 | 19.0°C | 18.5°C | |
| SEP 22 | 19.0°C | 18.6°C | |
| SEP 23 | 19.0°C | 18.6°C | |
| SEP 24 | 19.0°C | 18.6°C | |
| SEP 25 | 19.0°C | 18.6°C | |
| SEP 26 | 19.0°C | 18.7°C | |
| SEP 27 | 19.0°C | 18.7°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 | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 4°C | 6°C |
| April | 0°C | 6°C | 12°C |
| May | 7°C | 12°C | 16°C |
| June | 12°C | 16°C | 20°C |
| July | 18°C | 24°C | 29°C |
| August | 19°C | 22°C | 25°C |
| September | 16°C | 19°C | 22°C |
| October | 12°C | 15°C | 17°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 4°C | 7°C |
Grass Pond: Water Temperature by Location
Grass Pond: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Grass Pond in New York typically follows the seasonal pattern of small inland ponds in the region, with surface temperatures varying widely through the year. In winter the surface sits around freezing, about 32°F (0°C), and often freezes over. Spring temperatures commonly rise from roughly 35–55°F (2–13°C) as the ice clears and the water slowly warms. By midsummer shallow areas can reach comfortable swimming temperatures, often about 60–75°F (16–24°C), with the warmest spots occasionally touching the upper 70s°F (around 25°C) on hot, calm days. In autumn the pond cools again, generally falling into a range near 45–65°F (7–18°C) before ice formation begins.
Swimming is possible in many New York ponds including Grass Pond where public access and conditions allow, but whether it is formally permitted depends on land ownership, local regulations, and posted signs. Water quality, sudden temperature changes, and hidden underwater hazards can affect safety: cold spring or fall water can cause cold-water shock, and winter ice is hazardous. Because smaller ponds warm unevenly, shallow bays are friendlier for casual swimming while deeper spots stay chilly. Visitors should confirm access and advisories with local authorities and use appropriate precautions for temperature and water conditions.