World sea water temperatures

Water temperature in Portsmouth (NC) in January

Is it warm enough to swim in Portsmouth in January? Average water temperature in Portsmouth in January is 63.1°F and therefore is not suitable for comfortable swimming. The warmest sea in Portsmouth in January is 69.8°F, and the coldest is 53.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Portsmouth

Changes water temperature in Portsmouth in January 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
January 165.3°F59.4°F59.4°F69.8°F
January 264°F60.1°F60.1°F68.9°F
January 365.8°F58.5°F58.5°F68.7°F
January 462.8°F60.8°F60.8°F68°F
January 560.6°F60.1°F60.1°F67.8°F
January 660.8°F59.7°F59.7°F68.2°F
January 760.4°F59°F57°F68°F
January 860.3°F57.6°F57.4°F68.2°F
January 959°F57.9°F55.2°F68.5°F
January 1057.4°F58.3°F57.4°F67.3°F
January 1156.1°F58.1°F56.1°F67.8°F
January 1256.5°F59.5°F56.5°F67.8°F
January 1358.1°F60.4°F57.2°F67.6°F
January 1458.5°F63.3°F57°F67.8°F
January 1559.5°F63°F59°F68.7°F
Day 2025 2024 Min Max
January 1662.6°F63°F58.3°F69.3°F
January 1763.9°F63.7°F57.2°F68.7°F
January 1859.7°F61.7°F57.4°F67.8°F
January 1960.6°F59.4°F57.6°F67.6°F
January 2062.2°F61°F54.3°F67.6°F
January 2162.4°F59.2°F55.2°F66.9°F
January 2261.5°F58.8°F56.3°F66.6°F
January 2357°F57.6°F57°F66.9°F
January 2457.6°F58.3°F56.8°F66.9°F
January 2555.9°F58.3°F55.2°F66.6°F
January 2658.6°F58.6°F54.3°F66.7°F
January 2759.2°F60.1°F54.1°F66.7°F
January 2861.3°F63.7°F54.5°F66.9°F
January 2962.2°F63.5°F53.8°F66.9°F
January 3062.2°F58.8°F54°F66.6°F
January 3160.3°F60.1°F53.8°F66°F
Portsmouth water temp chart in January

Average water temperature in Portsmouth in January over a decade

20162017201820192020
63.9°F64.9°F62.6°F58.3°F63°F
20212022202320242025
60.1°F63°F62.8°F60.1°F60.4°F

Portsmouth sea state in January

Chart comparing the height of waves in Portsmouth in January 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 Portsmouth in January

Portsmouth 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 January?

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

AvrMinMax
Davis62.4°F50.2°F69.1°F
Buxton61.7°F45.9°F70.7°F
Engelhard55.2°F35.8°F66.2°F
Cape Hatteras63.9°F48.7°F72°F
Oriental56.7°F35.8°F66.6°F
Outer Banks61.9°F41.9°F70.9°F
Harkers Island60.4°F47.1°F68.5°F
Cape Lookout62.6°F51.4°F69.4°F
Beaufort59.4°F44.4°F68.4°F
Minnesott Beach57°F36.3°F66.6°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 Portsmouth 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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