World sea water temperatures

Water temperature in Mattapoisett (MA) in September

Is it warm enough to swim in Mattapoisett in September? Average water temperature in Mattapoisett in September is 68.7°F and therefore suitable for comfortable swimming. The warmest sea in Mattapoisett in September is 77.7°F, and the coldest is 63.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Mattapoisett

Changes water temperature in Mattapoisett in September 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
September 170.5°F72.3°F66.9°F75.9°F
September 270.5°F73.2°F66.9°F75.2°F
September 370.7°F72.5°F66.4°F75°F
September 471.2°F71.8°F66.7°F74.8°F
September 572.1°F72°F66.2°F75.2°F
September 6 69.8°F65.7°F75.7°F
September 7 69.6°F65.8°F75.4°F
September 8 71.4°F66.2°F75.4°F
September 9 70.5°F66.2°F76.6°F
September 10 70.2°F66.6°F75.2°F
September 11 69.3°F66.4°F74.3°F
September 12 69.8°F66.4°F77.7°F
September 13 70.2°F65.8°F75.9°F
September 14 70.3°F66.2°F75.7°F
September 15 70.3°F65.5°F74.8°F
Day 2025 2024 Min Max
September 16 70.3°F66°F73.9°F
September 17 70°F65.3°F72.1°F
September 18 69.3°F65.3°F72.3°F
September 19 68.5°F65.3°F72.3°F
September 20 68°F65.1°F71.1°F
September 21 67.6°F64.9°F71.1°F
September 22 67.6°F64.9°F71.8°F
September 23 65.8°F64.4°F71.8°F
September 24 65.8°F64.2°F72.1°F
September 25 65.7°F64°F71.8°F
September 26 65.1°F63.7°F71.8°F
September 27 64.9°F63.3°F71.1°F
September 28 64.8°F63.3°F70.5°F
September 29 65.1°F63.5°F69.8°F
September 30 66°F63.5°F69.3°F
Mattapoisett water temp chart in September

Average water temperature in Mattapoisett in September over a decade

20152016201720182019
69.8°F70°F67.3°F71.6°F69.4°F
20202021202220232024
69.3°F72°F70.9°F71.1°F68.9°F

Mattapoisett sea state in September

Chart comparing the height of waves in Mattapoisett in September 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 Mattapoisett in September

Mattapoisett 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 September?

Want to know where the water temperature in September 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 September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Weweantic68.5°F63.3°F77.2°F
Onset68.5°F63.1°F77°F
Monument Beach68.7°F63.1°F75.6°F
Pocasset68.7°F63.1°F75.6°F
Old Silver Beach68.7°F63.1°F75.6°F
Wareham68.7°F63.1°F75.6°F
Bourne68.7°F63.1°F75.6°F
North Falmouth68.7°F63.1°F75.6°F
Little Harbor Beach68.7°F63.1°F75.6°F
New Bedford68.4°F63.3°F77.7°F

Massachusetts photo gallery

  • Cranes Beach, Low Tide, 7/29/2020
  • Black rock beach. Cohasset ma
  • Massachusetts
  • Massachusetts

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Massachusetts best beach

Current rating: (0 votes cast)

If you know this place (Mattapoisett) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[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.

Get widget or API for your website

Our report for Mattapoisett 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.

Contact us: admin@seatemperature.info
privacy policy