World sea water temperatures

Water temperature in New London (CT) in March

Is it warm enough to swim in New London in March? Average water temperature in New London in March is 39.9°F and therefore is not suitable for comfortable swimming. The warmest sea in New London in March is 51.3°F, and the coldest is 32.7°F. Average high air temperature in New London in March is 47°F, and average low temperature is 31°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in New London

Changes water temperature in New London in March 2025, 2024

To get an accurate forecast for the water temperature in New London for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in New London, 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 137.8°F41.2°F32.9°F42.3°F
March 237.9°F41.4°F32.7°F42.1°F
March 337.9°F41.4°F33.1°F42.8°F
March 438.3°F42.1°F33.1°F43°F
March 538.1°F40.8°F33.3°F42.1°F
March 638.3°F40.6°F33.6°F41.9°F
March 739.4°F40.3°F33.1°F41.9°F
March 838.7°F41.5°F33.3°F43.3°F
March 938.3°F40.6°F33.4°F43.5°F
March 1039°F41.9°F33.8°F43.2°F
March 1139.6°F41.9°F34.3°F43.3°F
March 1239.2°F42.6°F34°F43.5°F
March 1340.6°F40.8°F34.2°F43.9°F
March 1440.3°F41.5°F34.5°F44.2°F
March 1541°F41.5°F34.3°F44.2°F
Day 2025 2024 Min Max
March 1640.1°F42.1°F34.3°F44.2°F
March 1739.9°F44.6°F34.5°F44.6°F
March 1839.2°F44.8°F34.7°F45.1°F
March 1941.2°F44.1°F34.9°F45.5°F
March 2040.1°F44.4°F35.1°F45.7°F
March 2142.1°F43.3°F35.4°F46°F
March 2241.7°F42.6°F34.7°F48°F
March 2342.6°F42.4°F34.7°F51.3°F
March 2442.1°F43°F34.9°F49.1°F
March 2542.8°F42.8°F35.4°F48.7°F
March 2642.4°F43°F36.3°F48°F
March 2742.4°F44.1°F36.5°F47.3°F
March 2841.7°F43.9°F36.7°F46.8°F
March 2941.7°F43°F36.3°F46.8°F
March 3041.5°F43.7°F36.5°F46.9°F
March 3142.1°F44.1°F36.7°F46.4°F
New London water temp chart in March

Average water temperature in New London in March over a decade

20162017201820192020
41.7°F39.6°F39.4°F39.4°F43°F
20212022202320242025
40.1°F41.2°F42.1°F42.4°F40.3°F

New London sea state in March

Chart comparing the height of waves in New London 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 New London in March

Weather and climate in New London in March

This data display average monthly climate indicators in New London in March based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature47°F
  • Average LOW temperature31°F
  • Average rainfall days11 days
  • Average rainfall102mm/4''
  • Average snowfall81mm/3.2''

New London 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
Niantic39.7°F32.7°F50.9°F
Noank39.9°F32.9°F50.9°F
Ocean Beach Park39.7°F32.7°F50.9°F
Waterford39.7°F32.7°F50.9°F
Rocky Neck39.6°F32.7°F50.7°F
Old Lyme39.4°F32.5°F50°F
Fishers Island39.9°F32.9°F50.4°F
Stonington40.1°F33.3°F50.5°F
Plum Island39.7°F32.7°F50.4°F
Old Saybrook39.2°F32.5°F49.6°F

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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 New London 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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