Seaside Heights — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Seaside Heights (New Jersey, 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 Seaside Heights help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Seaside Heights 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 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
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 Seaside Heights 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 Seaside Heights will be 19.0°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 1 | 15.3°C | 15.0°C | |
| JUN 2 | 15.3°C | 15.3°C | |
| JUN 3 | 15.2°C | 15.5°C | |
| JUN 4 | 15.0°C | 16.3°C | |
| JUN 5 | 15.0°C | 16.8°C | |
| JUN 6 | 15.1°C | 17.3°C | |
| JUN 7 | 15.6°C | 17.0°C | |
| JUN 8 | 16.3°C | 17.8°C | |
| JUN 9 | 17.7°C | 17.8°C | 17.7°C |
| JUN 10 | 17.8°C | 17.9°C | |
| JUN 11 | 18.0°C | 18.1°C | |
| JUN 12 | 18.3°C | 18.3°C | |
| JUN 13 | 18.0°C | 18.5°C | |
| JUN 14 | 18.5°C | 18.7°C | |
| JUN 15 | 18.8°C | 18.8°C | |
| JUN 16 | 18.8°C | 19.0°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
Seaside Heights, on New Jersey’s Barnegat Peninsula, is a small resort town on the Atlantic coast known for its boardwalk and sandy beaches. The local water temperatures follow a typical mid-Atlantic seasonal pattern and can change with weather, tides and currents. In winter (December–February) sea surface temperatures commonly sit between about 2 °C and 6 °C, while spring months (March–May) warm gradually from roughly 6 °C up to around 15 °C by late spring. Peak summer temperatures (June–August) generally range from about 18 °C to 24 °C, after which autumn (September–November) sees a steady decline into the 10 °C–18 °C range. Shallow areas and the adjacent Barnegat Bay often register a few degrees warmer than the open Atlantic, especially on calm, sunny days.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 6°C | 8°C |
| February | 3°C | 5°C | 7°C |
| March | 3°C | 6°C | 9°C |
| April | 4°C | 9°C | 12°C |
| May | 8°C | 13°C | 18°C |
| June | 14°C | 19°C | 24°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 | 11°C | 14°C | 18°C |
| December | 4°C | 9°C | 13°C |
* Click on a month to view detailed water temperature data.
Seaside Heights: Weather Forecast
June 11
June 12
June 13
Location, Beaches & Local Information
Nearby Beaches & Facilities
Seaside Heights Beach
Breakwater Beach
Barnegat Bay Beach
Lake Avenue Playground
Funtown Beach
Seaside Park Beach
Vision Beach
Pelican Island
O Street Beach
Swimming Conditions
Swimming and beach holidays at Seaside Heights are concentrated in the warmer months when lifeguard services, concessions and boardwalk attractions operate at full capacity. The ocean offers typical Atlantic conditions, so swimmers should be prepared for waves and possible rip currents even when air temperatures are pleasant; calmer, shallower waters of the bay provide an alternative for families and less confident swimmers. Water-quality monitoring is routine during the season, and visitors commonly combine beach time with boardwalk activities, casual boating or kayaking in the bay. Those planning to swim should check local conditions and advisories on the day of their visit and wear appropriate exposure protection when temperatures are cooler.