All data are in degrees Fahrenheit

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Water temperature in Jersey City

Detailed information about the current water temperature in Jersey City. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Jersey City now

73.5

°F

September 21, 15:19

Trend:

decreasing

Yesterday:

74.3°F

Tomorrow:

73.3°F

Sunrise:

06:43

Sunset:

18:56

Day Length:

12 h. 13 min.

Jersey City in September

Minimum:

36.7°F

Average:

41.6°F

Maximum:

43.5°F

Sea water temperature in Jersey City today

As of now, in Jersey City, the water temperature is 73.5°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.1°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 76.1°F on 2018, while the historical minimum was 69.6°F on 2017.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 72.4°F, the minimum temperature may reach 71.8°F, and the maximum might stay at 73.3°F.

Daily water temperature in Jersey City

Date Current Year

actual* / forecast**

last year 10 years average
Sep 7 74.4°F 72.7°F 73.5°F
Sep 8 74.4°F 71.8°F 73.4°F
Sep 9 74.0°F 71.4°F 73.1°F
Sep 10 73.7°F 71.0°F 72.9°F
Sep 11 75.3°F 71.0°F 73.0°F
Sep 12 74.0°F 70.5°F 72.4°F
Sep 13 73.8°F 70.8°F 72.3°F
Sep 14 73.8°F 71.3°F 72.3°F
Sep 15 74.2°F 71.6°F 72.5°F
Sep 16 73.1°F 72.4°F 72.6°F
Sep 17 72.9°F 72.2°F 72.2°F
Sep 18 73.0°F 71.5°F 71.7°F
Sep 19 74.5°F 71.2°F 72.0°F
Sep 20 74.3°F 71.3°F 72.0°F
Sep 21 73.5°F 70.6°F 71.5°F
Sep 22 73.3°F 70.9°F 71.2°F
Sep 23 72.9°F 70.4°F 70.9°F
Sep 24 72.8°F 70.0°F 70.8°F
Sep 25 72.3°F 69.9°F 70.3°F
Sep 26 71.9°F 69.5°F 69.9°F
Sep 27 71.9°F 71.3°F 69.9°F
Sep 28 71.8°F 71.4°F 69.8°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Jersey City by month

In Jersey City, the months July through August offer comfortable swimming conditions, which amounts to 58 swimming days.
The warmest water in Jersey City was recorded on July 31, 2025, reaching a 79.4°F. While the coldest temperature occurred on February 2, 2026, dipping to 32.3°F. The average readings by season are 41.9°F in Winter, 48.6°F in Spring, 71.9°F in Summer, and 63.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
New York City 73.5°F 4mi
Manhattan 73.2°F 7mi
Brooklyn 73.1°F 9mi
Coney Island 73.5°F 11mi
Staten Island 73.7°F 12mi
Queens 72.4°F 13mi
The Bronx 72.5°F 14mi

* current water temperature in this city

** straight line distance from Jersey City