New Rochelle — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for New Rochelle (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 Rochelle help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in New Rochelle 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 Rochelle 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 Rochelle will be 18.8°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 6 | 15.0°C | 16.3°C | |
| JUN 7 | 15.5°C | 16.5°C | |
| JUN 8 | 15.8°C | 16.5°C | |
| JUN 9 | 16.1°C | 17.3°C | |
| JUN 10 | 17.5°C | 17.5°C | |
| JUN 11 | 17.6°C | 17.3°C | |
| JUN 12 | 17.0°C | 17.8°C | |
| JUN 13 | 17.5°C | 17.8°C | |
| JUN 14 | 18.2°C | 17.8°C | 18.2°C |
| JUN 15 | 18.0°C | 18.3°C | |
| JUN 16 | 18.8°C | 18.4°C | |
| JUN 17 | 18.3°C | 18.5°C | |
| JUN 18 | 18.0°C | 18.6°C | |
| JUN 19 | 18.8°C | 18.7°C | |
| JUN 20 | 19.0°C | 18.7°C | |
| JUN 21 | 19.0°C | 18.8°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 Rochelle sits on the northern shore of Long Island Sound in Westchester County, New York, and its coastal waters are subject to the seasonal swings typical of temperate estuaries. During winter months (December through February) surface temperatures commonly drop to around 0–4°C. In spring (March through May) waters steadily warm from roughly 4°C in early spring to about 12–15°C by late May. Summer (June through August) brings the warmest conditions, with surface temperatures typically in the range of 17–24°C, peaking in July and August. In autumn (September through November) the Sound cools again, with temperatures usually falling from about 18–21°C in early September down to 10–14°C by November. Local factors such as tides, wind, and weather events can cause short-term variations in these averages.
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 | 5°C | 8°C |
| April | 4°C | 8°C | 12°C |
| May | 8°C | 13°C | 17°C |
| June | 14°C | 18°C | 23°C |
| July | 17°C | 23°C | 26°C |
| August | 20°C | 23°C | 26°C |
| September | 18°C | 21°C | 25°C |
| October | 13°C | 19°C | 22°C |
| November | 9°C | 14°C | 17°C |
| December | 5°C | 9°C | 13°C |
* Click on a month to view detailed water temperature data.
New Rochelle: Weather Forecast
June 15
June 16
June 17
June 18
Location, Beaches & Local Information
Nearby Beaches & Facilities
Surf Club On The Sound
Greentree Country Club
Echo Bay Yacht Club
Hudson Park
Davenport Club
Larchmont Shore Club
Huckleberry Island
Beckwith Pointe
Vip Country Club
Swimming Conditions
Swimming and beach recreation around New Rochelle are centered on its shoreline parks and access points along the Sound, where people swim, paddle, and boat during the warmer months. The most comfortable window for open-water swimming is generally from late June through early September, when waters are most often above 18°C. Some municipal and county beaches provide seasonal amenities and lifeguard coverage, while other spots are more informal and suited to kayaking or shoreline wading. Visitors looking for a beach holiday should check current water temperatures, local advisories, and beach services before planning; outside of summer, conditions are frequently cool enough to make bathing without a wetsuit brisk.