World sea water temperatures

Water temperature in Polihale (HI) in September

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Is it warm enough to swim in Polihale in September? Average water temperature in Polihale in September is 81°F and therefore suitable for comfortable swimming. The warmest sea in Polihale in September is 84.4°F, and the coldest is 78.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Polihale

Changes water temperature in Polihale in September 2025, 2024

To get an accurate forecast for the water temperature in Polihale for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Polihale, 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 181.3°F80.4°F78.6°F83.3°F
September 281.7°F81°F78.6°F83.5°F
September 381.9°F80.6°F78.4°F83.8°F
September 481.9°F80.8°F78.6°F83.7°F
September 582°F80.6°F78.8°F83.7°F
September 681.7°F80.8°F78.8°F83.7°F
September 781.7°F80.8°F78.8°F84°F
September 882°F80.8°F78.6°F84.2°F
September 981.7°F80.6°F79°F83.8°F
September 1081.9°F80.8°F79.2°F83.8°F
September 1182.4°F81°F78.8°F84°F
September 1282.2°F81.1°F78.8°F84°F
September 1381.9°F81.1°F79°F84.4°F
September 1482°F81.5°F79°F84°F
September 1581.9°F81.3°F79.2°F83.3°F
Day 2025 2024 Min Max
September 1682°F81°F79.3°F82.9°F
September 1781.7°F81°F79°F83.1°F
September 1881.9°F81.5°F79.2°F83.1°F
September 1981.9°F81°F79°F82.8°F
September 2081.5°F81.1°F78.1°F82.8°F
September 2181.7°F81.3°F78.6°F83.1°F
September 2281.7°F81°F79°F83.1°F
September 2382.2°F81.3°F78.6°F82.9°F
September 2481.9°F81°F78.8°F82.9°F
September 2581.9°F81.3°F78.8°F82.6°F
September 2681.9°F81°F78.6°F82.4°F
September 2781.7°F81.1°F79°F82°F
September 2881.9°F81°F78.8°F82.6°F
September 2981.9°F81°F79.3°F82.6°F
September 3081.9°F80.8°F79°F82.8°F
Polihale water temp chart in September

Average water temperature in Polihale in September over a decade

20162017201820192020
81°F82.2°F80.8°F82°F81.7°F
20212022202320242025
80.2°F81.7°F80.8°F81°F

Polihale sea state in September

Chart comparing the height of waves in Polihale 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 Polihale in September

Polihale 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
Hanalei80.4°F77.4°F83.7°F
Hideaway Beach80.4°F77.4°F83.7°F
Anini Beach80.4°F77.4°F83.7°F
Lawai Beach80.8°F77.7°F84°F
Wailua80.6°F77.5°F83.7°F
Poipu80.8°F77.7°F84°F
Kapaa80.4°F77.4°F83.7°F
Anahola80.4°F77.4°F83.5°F
Lydgate Beach80.6°F77.5°F83.7°F
Lihue80.6°F77.5°F83.8°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 Polihale 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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