Water temperature in Olowalu (HI) in September

Is it warm enough to swim in Olowalu in September? Average water temperature in Olowalu in September is 80.8°F and therefore suitable for comfortable swimming. The warmest sea in Olowalu in September is 85.3°F, and the coldest is 77.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Olowalu

Changes water temperature in Olowalu in September 2025, 2024

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

Average water temperature in Olowalu in September over a decade

You can also view information about water temperature for other months by clicking on the month button below

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

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Our report for Olowalu 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.