World sea water temperatures

Water temperature in Niantic (CT) in March

Is it warm enough to swim in Niantic in March? Average water temperature in Niantic in March is 39.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Niantic in March is 50.9°F, and the coldest is 32.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Niantic

Changes water temperature in Niantic in March 2025, 2024

To get an accurate forecast for the water temperature in Niantic for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Niantic, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of March.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
March 137.2°F41°F32.9°F41.9°F
March 237.8°F41.2°F32.7°F41.7°F
March 337.6°F41.2°F32.9°F42.6°F
March 437.8°F41.4°F32.9°F42.8°F
March 538.1°F40.5°F33.1°F42.1°F
March 638.1°F40.5°F33.6°F41.9°F
March 738.7°F40.1°F32.9°F41.9°F
March 838.1°F41.4°F33.1°F43°F
March 937.9°F40.6°F33.4°F43.3°F
March 1038.7°F42.3°F33.8°F43°F
March 1138.7°F41.7°F34.2°F43°F
March 1238.5°F42.1°F34°F43.3°F
March 1340.1°F41.2°F34°F43.7°F
March 1439.9°F41.7°F34.3°F44.2°F
March 1541.9°F41.5°F34.2°F44.1°F
Day 2025 2024 Min Max
March 1640.6°F42.8°F34.3°F44.1°F
March 1740.3°F44.8°F34.3°F44.8°F
March 1839°F44.1°F34.5°F45°F
March 1940.8°F43.5°F34.7°F45.3°F
March 2040.1°F44.2°F35.1°F45.5°F
March 2141°F43.2°F35.2°F45.9°F
March 2241°F42.4°F34.7°F47.8°F
March 2341.5°F42.4°F34.7°F50.9°F
March 2441.4°F43°F34.9°F48.7°F
March 2542.3°F42.8°F35.4°F48.4°F
March 2641.9°F43°F36.3°F47.7°F
March 2741.7°F44.4°F36.5°F47.1°F
March 2841.2°F44.1°F36.5°F46.6°F
March 2941.4°F42.3°F36.1°F46.6°F
March 3041.2°F43.2°F36.5°F46.9°F
March 3141.7°F44.1°F36.7°F46.4°F
Niantic water temp chart in March

Average water temperature in Niantic in March over a decade

20162017201820192020
41.5°F39.4°F39.2°F39.2°F42.6°F
20212022202320242025
39.7°F40.8°F42.1°F42.3°F39.9°F

Niantic sea state in March

Chart comparing the height of waves in Niantic in March over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Niantic in March

Niantic water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in March?

Want to know where the water temperature in March is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in March. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Rocky Neck39.6°F32.7°F50.7°F
Waterford39.7°F32.7°F50.9°F
Old Lyme39.4°F32.5°F50°F
Ocean Beach Park39.7°F32.7°F50.9°F
Noank39.9°F32.9°F50.9°F
Old Saybrook39.2°F32.5°F49.6°F
Saybrook Manor39.2°F32.5°F49.6°F
Plum Island39.7°F32.7°F50.4°F
Westbrook39.2°F32.5°F49.5°F
Orient Point39.9°F32.9°F50.2°F

Niantic photo gallery

  • Looking towards Fisher Island NY  Sunrise
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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Niantic is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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