World sea water temperatures

Water temperature in Rye (NH) in September

Is it warm enough to swim in Rye in September? Average water temperature in Rye in September is 63°F and therefore is not suitable for comfortable swimming. The warmest sea in Rye in September is 70.9°F, and the coldest is 57.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Rye

Changes water temperature in Rye in September 2025, 2024

To get an accurate forecast for the water temperature in Rye for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Rye, 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 162.6°F67.1°F61.9°F68.7°F
September 264.4°F65.8°F62.2°F68.5°F
September 363.9°F64.6°F61.2°F69.3°F
September 463.5°F64.8°F60.8°F70°F
September 5 65.1°F60.8°F70.3°F
September 6 64.6°F61.2°F70.9°F
September 7 64.6°F61°F69.8°F
September 8 63.3°F60.6°F68.9°F
September 9 62.2°F60.4°F67.8°F
September 10 62.4°F60.3°F68.4°F
September 11 62.2°F60.1°F68.5°F
September 12 63.5°F60.4°F68.2°F
September 13 64.8°F60.6°F69.4°F
September 14 63.7°F60.8°F68°F
September 15 64.9°F60.1°F66.4°F
Day 2025 2024 Min Max
September 16 64.9°F59.7°F66.2°F
September 17 63.9°F59.4°F66.4°F
September 18 63.9°F59.2°F66.4°F
September 19 63.7°F59.2°F65.3°F
September 20 63°F58.8°F64.6°F
September 21 62.6°F58.8°F64.8°F
September 22 62.1°F58.6°F64.9°F
September 23 61.3°F58.5°F65.1°F
September 24 61.2°F58.1°F65.7°F
September 25 61°F57.7°F65.1°F
September 26 60.8°F57.9°F65.3°F
September 27 61.2°F58.1°F64.6°F
September 28 61.7°F58.3°F64.2°F
September 29 62.1°F58.6°F63.5°F
September 30 61.7°F58.6°F62.8°F
Rye water temp chart in September

Average water temperature in Rye in September over a decade

20152016201720182019
64°F63.7°F61.5°F65.7°F63.5°F
20202021202220232024
62.4°F65.1°F62.8°F64.8°F63.3°F

Rye sea state in September

Chart comparing the height of waves in Rye 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 Rye in September

Rye 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
Rye Beach63°F57.7°F70.9°F
Jenness Beach63°F57.7°F70.9°F
Wallis Sands Beach62.6°F57.6°F70.5°F
Portsmouth62.8°F57.6°F70.5°F
North Beach63°F57.9°F71.1°F
New Castle62.6°F57.6°F70.2°F
Seabrook63.1°F58.1°F71.4°F
York Beach62.4°F57.4°F69.8°F
Long Sands Beach62.4°F57.6°F69.8°F
Newburyport63.3°F58.3°F71.4°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 Rye 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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