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Water temperature in Kaunakakai (HI) in August

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Is it warm enough to swim in Kaunakakai in August? Average water temperature in Kaunakakai in August is 79.9°F and therefore suitable for comfortable swimming. The warmest sea in Kaunakakai in August is 84°F, and the coldest is 77.5°F. Average high air temperature in Kaunakakai in August is 86°F, and average low temperature is 71°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Kaunakakai

Changes water temperature in Kaunakakai in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 180.2°F78.8°F78.3°F80.8°F
August 280.1°F78.8°F78.3°F81°F
August 380.2°F78.8°F78.3°F81°F
August 480.2°F78.8°F78.3°F81°F
August 580.1°F79°F78.1°F81°F
August 680.1°F79°F78.3°F81°F
August 780.6°F79°F78.1°F81.3°F
August 880.4°F79°F77.7°F81.5°F
August 980.2°F79.2°F77.9°F81.3°F
August 1080.2°F79.3°F77.7°F81.3°F
August 1180.4°F79.3°F77.7°F81.5°F
August 1280.6°F79.5°F77.9°F81.7°F
August 1380.4°F79.5°F78.1°F81.9°F
August 1480.6°F79.3°F78.1°F82°F
August 1580.8°F79.7°F77.7°F81.9°F
Day 2025 2024 Min Max
August 1680.4°F79.9°F77.9°F81.9°F
August 1780.2°F80.2°F77.9°F82°F
August 1880.6°F80.1°F77.9°F82.4°F
August 1980.6°F79.9°F77.9°F82.6°F
August 2080.6°F80.1°F77.9°F82.8°F
August 2180.6°F80.1°F78.3°F83.3°F
August 2280.6°F79.9°F78.3°F82.6°F
August 2380.2°F79.9°F78.3°F82.6°F
August 2480.4°F80.1°F78.4°F82.4°F
August 2580.2°F80.1°F78.1°F82.6°F
August 2680.2°F80.2°F78.1°F82.8°F
August 2780.2°F79.9°F78.1°F83.5°F
August 2880.1°F79.7°F77.9°F84°F
August 2980.2°F79.9°F77.5°F83.8°F
August 3080.1°F79.9°F77.7°F83.7°F
August 3180.1°F80.1°F77.9°F83.1°F
Kaunakakai water temp chart in August

Average water temperature in Kaunakakai in August over a decade

20162017201820192020
81°F80.6°F80.1°F81.7°F79.9°F
20212022202320242025
79.3°F79.9°F79.7°F79.5°F80.2°F

Kaunakakai sea state in August

Chart comparing the height of waves in Kaunakakai in August 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 Kaunakakai in August

Weather and climate in Kaunakakai in August

This data display average monthly climate indicators in Kaunakakai in August 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 temperature86°F
  • Average LOW temperature71°F
  • Average rainfall15mm/0.6''

Kaunakakai 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 August?

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

AvrMinMax
Molokai80.1°F77.5°F84°F
Kahana80.1°F77.7°F83.5°F
Napili Bay79.7°F77.4°F83.3°F
Kaanapali80.2°F77.7°F83.7°F
Kahekili Beach Park80.2°F77.7°F83.7°F
Kapalua79.5°F77.2°F83.1°F
Honolua Bay79.5°F77.2°F83.1°F
Fleming Beach79.5°F77.2°F83.1°F
Oneloa Bay79.5°F77.2°F83.1°F
Ironwood Beach79.5°F77.2°F83.1°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 Kaunakakai 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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