All data are in degrees Fahrenheit

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Water temperature in Manhattan

Detailed information about the current water temperature in Manhattan. 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 Manhattan now

71.9

°F

September 17, 21:03

Trend:

decreasing

Yesterday:

72.2°F

Tomorrow:

71.5°F

Sunrise:

06:38

Sunset:

19:02

Day Length:

12 h. 24 min.

Manhattan in September

Minimum:

40.0°F

Average:

41.7°F

Maximum:

43.2°F

Sea water temperature in Manhattan today

As of now, in Manhattan, the water temperature is 71.9°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.2°F lower 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 73.2°F on 2015, while the historical minimum was 70.5°F on 2017.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 71.2°F, the minimum temperature may reach 70.5°F, and the maximum might stay at 71.8°F.

Daily water temperature in Manhattan

Date Current Year

actual* / forecast**

last year 10 years average
Sep 3 70.6°F 72.7°F 73.1°F
Sep 4 70.8°F 72.3°F 73.0°F
Sep 5 71.4°F 71.3°F 73.2°F
Sep 6 72.9°F 71.2°F 73.4°F
Sep 7 72.6°F 70.3°F 73.3°F
Sep 8 71.9°F 71.3°F 73.4°F
Sep 9 71.3°F 71.6°F 73.2°F
Sep 10 71.1°F 70.7°F 73.1°F
Sep 11 71.0°F 70.5°F 72.9°F
Sep 12 70.5°F 70.2°F 72.3°F
Sep 13 70.7°F 70.4°F 72.3°F
Sep 14 71.1°F 70.3°F 72.4°F
Sep 15 71.7°F 71.0°F 72.4°F
Sep 16 72.2°F 71.2°F 72.5°F
Sep 17 71.9°F 71.1°F 72.1°F
Sep 18 71.5°F 70.9°F 71.7°F
Sep 19 71.8°F 70.8°F 72.0°F
Sep 20 71.6°F 71.3°F 71.8°F
Sep 21 71.3°F 71.4°F 71.5°F
Sep 22 71.0°F 70.5°F 71.2°F
Sep 23 70.6°F 69.7°F 70.8°F
Sep 24 70.5°F 69.5°F 70.7°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 Manhattan by month

In Manhattan, the months July through August offer comfortable swimming conditions, which amounts to 52 swimming days.
The warmest water in Manhattan was recorded on July 31, 2025, reaching a 78.9°F. While the coldest temperature occurred on February 23, 2025, dipping to 34.1°F. The average readings by season are 41.9°F in Winter, 48.1°F in Spring, 71.5°F in Summer, and 63.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
New York City 72.2°F 5mi
The Bronx 71.5°F 7mi
Jersey City 72.2°F 7mi
Brooklyn 71.8°F 9mi
Queens 71.3°F 10mi

* current water temperature in this city

** straight line distance from Manhattan