World sea water temperatures

Water temperature in Hana (HI) in September

Is it warm enough to swim in Hana in September? Average water temperature in Hana in September is 80.1°F and therefore suitable for comfortable swimming. The warmest sea in Hana in September is 84.2°F, and the coldest is 77°F. Average high air temperature in Hana in September is 83°F, and average low temperature is 70°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Hana

Changes water temperature in Hana in September 2025, 2024

To get an accurate forecast for the water temperature in Hana for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Hana, 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 179.7°F79.7°F77.9°F82.9°F
September 279.7°F79.7°F77.9°F83.3°F
September 379.9°F79.5°F77.7°F83.5°F
September 479.9°F79.5°F77.7°F83.3°F
September 5 79.5°F77.7°F83.3°F
September 6 79.7°F77.9°F83.3°F
September 7 79.9°F78.1°F83.5°F
September 8 79.7°F77.9°F84.2°F
September 9 79.5°F77.5°F83.8°F
September 10 79.7°F77.7°F83.8°F
September 11 80.1°F77.7°F83.7°F
September 12 79.9°F77.5°F83.5°F
September 13 79.9°F77.7°F82.9°F
September 14 80.1°F77.5°F82.9°F
September 15 80.1°F77.9°F82.4°F
Day 2025 2024 Min Max
September 16 80.1°F77.9°F82.6°F
September 17 80.1°F77.9°F82.9°F
September 18 80.1°F78.3°F82.8°F
September 19 79.9°F78.1°F82.9°F
September 20 79.9°F77.5°F82.4°F
September 21 79.9°F77.5°F82.4°F
September 22 80.1°F77.4°F82.4°F
September 23 79.9°F77°F82.2°F
September 24 79.7°F77.7°F82.9°F
September 25 79.7°F77.7°F82.9°F
September 26 79.9°F77.9°F82.8°F
September 27 79.9°F77.7°F82.6°F
September 28 79.7°F77.9°F82.4°F
September 29 79.9°F78.3°F82.4°F
September 30 80.1°F78.4°F82.6°F
Hana water temp chart in September

Average water temperature in Hana in September over a decade

20152016201720182019
82.9°F80.8°F81°F80.6°F82.2°F
20202021202220232024
79.9°F79.3°F80.2°F79.5°F79.9°F

Hana sea state in September

Chart comparing the height of waves in Hana 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 Hana in September

Weather and climate in Hana in September

This data display average monthly climate indicators in Hana in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature83°F
  • Average LOW temperature70°F
  • Average rainfall days14 days
  • Average rainfall173mm/6.8''
  • Average daylight12h
  • Average sunshine8h
  • Average UV index11

Hana 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
Hamoa Beach80.1°F77.2°F84.4°F
Peahi79.7°F76.8°F83.7°F
Jaws79.7°F76.8°F83.7°F
Haiku-Pauwela79.7°F76.8°F83.7°F
Paia79.7°F76.8°F83.8°F
Makena Beach80.4°F77.4°F85.1°F
Maluaka Beach80.4°F77.4°F85.1°F
La Perouse Bay80.4°F77.4°F85.1°F
Kahului79.9°F76.8°F84°F
Molokini80.4°F77.5°F85.1°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 Hana 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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