Westhampton Beach — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Westhampton Beach (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 Westhampton Beach help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Westhampton Beach 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 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 Westhampton Beach has risen over the last week and month. 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 Westhampton Beach will be 21.2°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 24 | 16.9°C | 9.0°C | |
| JUN 25 | 18.0°C | 9.8°C | |
| JUN 26 | 18.0°C | 13.3°C | |
| JUN 27 | 18.0°C | 13.8°C | |
| JUN 28 | 18.5°C | 13.3°C | |
| JUN 29 | 19.3°C | 20.3°C | |
| JUN 30 | 19.6°C | 20.5°C | |
| JUL 1 | 20.0°C | 21.0°C | |
| JUL 2 | 19.9°C | 21.0°C | 19.9°C |
| JUL 3 | 20.3°C | 20.1°C | |
| JUL 4 | 21.0°C | 20.3°C | |
| JUL 5 | 20.5°C | 20.5°C | |
| JUL 6 | 22.0°C | 20.7°C | |
| JUL 7 | 21.8°C | 20.9°C | |
| JUL 8 | 22.3°C | 21.0°C | |
| JUL 9 | 22.0°C | 21.2°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
Westhampton Beach sits on the South Shore of Long Island, where the Atlantic Ocean and adjacent bays shape local conditions. Water temperatures change noticeably through the year and are influenced by tides, wind and the difference between open ocean and shallower bay areas. Typical seasonal ranges for the ocean and bay around Westhampton Beach are roughly 1–6 °C in winter (December–February), 5–15 °C in spring (March–May), 18–24 °C in summer (June–August) and 10–16 °C in autumn (September–November). Bay waters that are shallower and more sheltered tend to warm earlier in late spring and stay warmer later into the fall compared with the cooler surf off the Atlantic-facing beaches. Year-to-year weather patterns and occasional warm or cold spells will shift these averages.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 6°C | 9°C |
| February | 2°C | 4°C | 7°C |
| March | 2°C | 5°C | 7°C |
| April | 4°C | 8°C | 12°C |
| May | 8°C | 12°C | 17°C |
| June | 13°C | 17°C | 23°C |
| July | 18°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.
Westhampton Beach: Weather Forecast
July 4
July 5
July 6
Location, Beaches & Local Information
Nearby Beaches & Facilities
Quantuck Beach Club
Surf Club Of Quogue
Rogers Beach
The Ocean Resort At Bath And Tennis
Swordfish Beach Club
La Ronde Beach Club
Quogue Village Beach
Lashley Pavilion
Dune Deck Beach Club
Swimming Conditions
Swimming and beach holidays here reflect those temperature patterns: the main swimming season is concentrated in the warm summer months when sea temperatures commonly reach the high teens to low twenties °C, making ocean and bay bathing comfortable for many visitors. Lifeguarded public beaches, calmer bay coves and protected inlets are popular for families and less experienced swimmers, while the ocean side appeals to surfers and strong swimmers who cope with cooler water and currents. Early- and late-season swimmers often use wetsuits for spring and autumn dips, and even in summer there can be chilly currents. Beach amenities, seasonal services and a mix of active water sports and relaxed shoreline swimming make Westhampton Beach a versatile destination depending on what water temperatures visitors prefer.