East Hampton — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for East Hampton (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 East Hampton help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in East Hampton in the Atlantic Ocean today is 20°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.
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 East Hampton rose over the last 30 days but fell over the last week. Currently, the sea water at this location is slightly cooler than average for this day in previous years.
According to our forecast, Water temperature in East Hampton will be 22.1°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 |
|---|---|---|---|
| JUL 15 | 21.1°C | 21.8°C | |
| JUL 16 | 21.3°C | 21.8°C | |
| JUL 17 | 21.2°C | 22.0°C | |
| JUL 18 | 21.6°C | 22.5°C | |
| JUL 19 | 21.3°C | 21.8°C | |
| JUL 20 | 21.4°C | 22.3°C | |
| JUL 21 | 21.1°C | 21.8°C | |
| JUL 22 | 20.3°C | 21.8°C | |
| JUL 23 | 20.3°C | 21.8°C | 20.3°C |
| JUL 24 | 22.8°C | 20.6°C | |
| JUL 25 | 23.0°C | 20.8°C | |
| JUL 26 | 23.0°C | 21.1°C | |
| JUL 27 | 22.8°C | 21.3°C | |
| JUL 28 | 22.8°C | 21.6°C | |
| JUL 29 | 22.8°C | 21.8°C | |
| JUL 30 | 23.5°C | 22.1°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.
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
East Hampton, on the eastern end of Long Island, sits between the open Atlantic Ocean and a series of calmer bays and harbors, giving visitors a mix of coastal conditions. Water temperatures vary substantially through the year: in winter months (December–February) coastal waters commonly hover around 0–5°C, early spring (March–May) warms from roughly 4–15°C, June typically sees 16–20°C, and peak summer (July–August) brings the warmest water, often 20–24°C in ocean areas and slightly higher in shallow bays. Early autumn (September) usually remains pleasant at 18–22°C before cooling through October and November to about 8–15°C. Local microclimates and tides mean sheltered inlets can be warmer than exposed oceanfront.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 5°C | 10°C |
| February | 2°C | 4°C | 7°C |
| March | 2°C | 5°C | 7°C |
| April | 4°C | 7°C | 12°C |
| May | 7°C | 12°C | 17°C |
| June | 12°C | 17°C | 23°C |
| July | 17°C | 22°C | 25°C |
| August | 20°C | 23°C | 26°C |
| September | 18°C | 21°C | 24°C |
| October | 13°C | 18°C | 21°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.
East Hampton: Weather Forecast
July 24
July 25
July 26
July 27
Location, Beaches & Local Information
Nearby Beaches & Facilities
Main Beach
East Hampton Main Beach
Two Mile Hollow Beach
Egypt Beach
Wiborg Beach
Maidstone Club
Indian Wells Beach
Georgica Beach
The Creek Beach
Swimming Conditions
Swimming and beach holidays in East Hampton are centered on a mix of wide, sandy ocean beaches and gentler bay or harbor spots that suit families and water sports alike. Lifeguards and seasonal facilities are commonly available during the summer season, and water-quality monitoring helps inform swimmers about safe conditions. Ocean beaches offer surf and stronger currents, so experience and caution are advised, while bays and protected coves provide calmer water for paddling and shallow swimming. In shoulder seasons, many people opt for wetsuits as the water can still be brisk. Amenities, parking regulations and crowding vary by beach, so visitors typically plan around peak summer weeks for the warmest water and fullest services.