Prospect Park Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Prospect Park Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Prospect Park Lake today is 27°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 | 28.0°C | 26.0°C | |
| AUG 5 | 27.9°C | 26.0°C | |
| AUG 6 | 26.9°C | 26.0°C | |
| AUG 7 | 26.7°C | 26.0°C | |
| AUG 8 | 26.9°C | 26.0°C | |
| AUG 9 | 26.9°C | 26.0°C | |
| AUG 10 | 26.9°C | 26.0°C | |
| AUG 11 | 26.9°C | 26.0°C | |
| AUG 12 | 26.0°C | 27.0°C | |
| AUG 13 | 26.0°C | 26.9°C | |
| AUG 14 | 26.0°C | 26.9°C | |
| AUG 15 | 26.0°C | 26.8°C | |
| AUG 16 | 26.0°C | 26.8°C | |
| AUG 17 | 26.0°C | 26.7°C | |
| AUG 18 | 26.0°C | 26.7°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 | 5°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 5°C | 9°C |
| April | 4°C | 11°C | 18°C |
| May | 11°C | 17°C | 23°C |
| June | 17°C | 21°C | 26°C |
| July | 21°C | 26°C | 30°C |
| August | 23°C | 26°C | 29°C |
| September | 20°C | 24°C | 27°C |
| October | 13°C | 17°C | 20°C |
| November | 7°C | 10°C | 13°C |
| December | 1°C | 4°C | 8°C |
Prospect Park Lake: Water Temperature by Location
Prospect Park Lake: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Prospect Park Lake in Brooklyn experiences a typical temperate-seasonal pattern in surface water temperature. In winter the lake often approaches freezing, roughly 32–40°F (0–4°C), and in cold spells thin ice can form though it is not reliably safe. Spring sees a gradual rise, roughly 40–60°F (4–15°C) as air temperatures warm and runoff mixes into the basin. Peak summer temperatures commonly range from about 68–78°F (20–26°C) on warm days; in late July and August surface readings can sometimes edge toward the upper end of that band. During autumn the lake cools again, generally moving through 50–65°F (10–18°C) before winter settles in. These values are approximate and can vary with weather, shading, depth, and storm inflows.
Swimming in Prospect Park Lake is not permitted. The New York City Parks Department prohibits bathing in the lake because of public-safety and water-quality concerns: there are no lifeguards, boat traffic and submerged hazards present risks, and nutrient or runoff-driven water quality issues can create unsafe conditions. Park rules and signage reflect this restriction, and visitors are expected to use designated public pools and supervised waterfronts for swimming rather than entering the lake.