World sea water temperatures

Water temperature in Johnston Atoll in October

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Is it warm enough to swim in Johnston Atoll in October? Average water temperature in Johnston Atoll in October is 82.4°F and therefore suitable for comfortable swimming. The warmest sea in Johnston Atoll in October is 84.4°F, and the coldest is 80.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Johnston Atoll

Changes water temperature in Johnston Atoll in October 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
October 1 82.8°F81.3°F84.4°F
October 2 82.8°F81.9°F83.3°F
October 3 82.6°F81.3°F84.2°F
October 4 82.6°F81.3°F84.2°F
October 5 82.8°F81.3°F83.8°F
October 6 82.8°F81.3°F82.8°F
October 7 82.8°F81.9°F83.8°F
October 8 82.8°F81.1°F83.8°F
October 9 82.8°F81.1°F83.5°F
October 10 82.8°F80.8°F84°F
October 11 82.4°F80.8°F83.1°F
October 12 82.6°F81.9°F83.3°F
October 13 82.6°F81.1°F84°F
October 14 82.6°F81.1°F83.8°F
October 15 82.4°F81.1°F83.7°F
Day 2025 2024 Min Max
October 16 82.2°F81.5°F83.5°F
October 17 82.6°F81.7°F83.3°F
October 18 82.6°F80.8°F83.3°F
October 19 82.2°F81°F83.7°F
October 20 82.2°F81°F83.7°F
October 21 82.4°F80.6°F83.8°F
October 22 82.2°F80.6°F84°F
October 23 82.4°F80.6°F84°F
October 24 82.6°F80.8°F83.7°F
October 25 82.4°F81.3°F83.5°F
October 26 82.8°F80.6°F83.5°F
October 27 82.4°F81.3°F83.7°F
October 28 82.6°F80.8°F83.3°F
October 29 82.4°F81.1°F83.5°F
October 30 82.4°F80.4°F83.5°F
October 31 82.4°F80.8°F82.4°F
Johnston Atoll water temp chart in October

Average water temperature in Johnston Atoll in October over a decade

20152016201720182019
83.5°F82.9°F82.8°F82.6°F83.7°F
20202021202220232024
82.2°F81.7°F82.6°F81.9°F82.6°F

Johnston Atoll 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 October?

Want to know where the water temperature in October 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

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Our report for Johnston Atoll 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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