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

74.1

°F

September 12, 15:22

Trend:

stable

Yesterday:

75.3°F

Tomorrow:

74.2°F

Sunrise:

06:33

Sunset:

19:10

Day Length:

12 h. 37 min.

Manhattan in September

Minimum:

37.1°F

Average:

41.4°F

Maximum:

43.2°F

Sea water temperature in Manhattan today

As of now, in Manhattan, the water temperature is 74.1°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 stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 74.4°F on 2023, while the historical minimum was 68.6°F on 2017.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 74.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Manhattan

Date Current Year

actual* / forecast**

last year 10 years average
Aug 29 73.4°F 71.8°F 74.4°F
Aug 30 73.8°F 71.8°F 74.4°F
Aug 31 73.6°F 71.8°F 74.5°F
Sep 1 73.6°F 71.4°F 74.0°F
Sep 2 73.4°F 72.0°F 73.5°F
Sep 3 73.2°F 70.6°F 73.0°F
Sep 4 74.0°F 70.8°F 72.9°F
Sep 5 75.2°F 71.4°F 73.3°F
Sep 6 73.9°F 72.9°F 73.4°F
Sep 7 74.1°F 72.6°F 73.3°F
Sep 8 74.3°F 71.9°F 73.3°F
Sep 9 73.7°F 71.3°F 73.0°F
Sep 10 73.7°F 71.1°F 72.9°F
Sep 11 75.3°F 71.0°F 72.9°F
Sep 12 74.1°F 70.5°F 72.0°F
Sep 13 74.2°F 70.7°F 72.1°F
Sep 14 74.3°F 71.1°F 72.2°F
Sep 15 74.4°F 71.7°F 72.3°F
Sep 16 74.6°F 72.2°F 72.4°F
Sep 17 74.1°F 71.9°F 72.0°F
Sep 18 73.7°F 71.4°F 71.5°F
Sep 19 73.9°F 71.0°F 71.7°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 19, 2026, dipping to 32.7°F. The average readings by season are 41.6°F in Winter, 48.3°F in Spring, 71.6°F in Summer, and 63.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
New York City 74.0°F 5mi
The Bronx 74.4°F 7mi
Jersey City 74.0°F 7mi
Brooklyn 73.6°F 9mi
Queens 74.0°F 10mi

* current water temperature in this city

** straight line distance from Manhattan