New York — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for New York (New York, United States). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about New York help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in New York in the Atlantic Ocean today is 18°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
Water temperature in New York has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in New York will be 17.9°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 2 | 15.3°C | 15.0°C | |
| JUN 3 | 14.9°C | 15.5°C | |
| JUN 4 | 15.1°C | 16.3°C | |
| JUN 5 | 15.5°C | 16.5°C | |
| JUN 6 | 15.5°C | 17.3°C | |
| JUN 7 | 16.0°C | 17.5°C | |
| JUN 8 | 16.7°C | 17.0°C | |
| JUN 9 | 17.0°C | 18.5°C | |
| JUN 10 | 18.0°C | 18.5°C | 18.0°C |
| JUN 11 | 17.3°C | 18.0°C | |
| JUN 12 | 17.5°C | 18.0°C | |
| JUN 13 | 17.5°C | 17.9°C | |
| JUN 14 | 17.3°C | 17.9°C | |
| JUN 15 | 17.0°C | 17.9°C | |
| JUN 16 | 17.8°C | 17.9°C | |
| JUN 17 | 17.8°C | 17.9°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
New York state and New York City offer a wide variety of water environments, from the Atlantic Ocean and Long Island Sound to tidal estuaries, rivers and inland lakes, so water temperatures vary considerably by location and season. Along the New York City coastline and Long Island, winter sea temperatures typically range from about 0 to 7 °C, rising gradually through spring to roughly 5 to 15 °C. Summer brings the warmest conditions, with coastal waters generally between 18 and 24 °C on average, though shallow bays can warm a few degrees higher on hot spells. In autumn the water cools again to around 10 to 18 °C. Farther upstate, the Great Lakes and inland lakes tend to be colder year-round, with summer highs often closer to 15 to 20 °C and winter waters near freezing under ice in many areas.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 6°C | 8°C |
| February | 2°C | 4°C | 7°C |
| March | 2°C | 6°C | 9°C |
| April | 4°C | 9°C | 14°C |
| May | 8°C | 13°C | 19°C |
| June | 14°C | 18°C | 23°C |
| July | 19°C | 24°C | 27°C |
| August | 21°C | 24°C | 27°C |
| September | 18°C | 22°C | 25°C |
| October | 13°C | 19°C | 22°C |
| November | 9°C | 13°C | 18°C |
| December | 5°C | 9°C | 13°C |
* Click on a month to view detailed water temperature data.
New York: Weather Forecast
June 11
June 12
June 13
Location, Beaches & Local Information
Nearby Beaches & Facilities
Newport Sand Beach
Hallett's Cove Beach
Swimming Conditions
Swimming and beach holidays in New York reflect these temperature patterns and the variety of shoreline. Most recreational swimming is concentrated from late spring through early fall, with the busiest season in June to September when coastal waters are warmest; popular public beaches and state parks offer lifeguarded areas and facilities for families. Cooler spring and autumn months suit brisk open-water swims for experienced swimmers or those using wetsuits, while upstate lakes and reservoir beaches provide quieter alternatives to the busy Atlantic coast. Visitors should pay attention to local advisories, currents and lifeguard schedules, and choose bathing spots appropriate to the water temperature and their comfort level.