World sea water temperatures

Water temperature in Kailua Kona (HI) in May

Is it warm enough to swim in Kailua Kona in May? Average water temperature in Kailua Kona in May is 78.1°F and therefore suitable for comfortable swimming. The warmest sea in Kailua Kona in May is 81°F, and the coldest is 76.1°F. Average high air temperature in Kailua Kona in May is 84°F, and average low temperature is 72°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Kailua Kona

Changes water temperature in Kailua Kona in May 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 178.8°F77.5°F76.1°F78.8°F
May 278.8°F77.5°F76.1°F79.2°F
May 378.8°F77.7°F76.3°F79°F
May 479°F77.5°F76.5°F79.2°F
May 578.6°F77.2°F76.6°F79°F
May 678.6°F77.7°F76.3°F78.8°F
May 779°F77.5°F76.5°F79°F
May 878.8°F77.9°F76.6°F79°F
May 978.6°F77.9°F76.5°F79.2°F
May 1078.6°F78.3°F76.3°F79.3°F
May 1178.4°F77.9°F76.3°F79°F
May 1278.8°F77.7°F76.3°F79°F
May 1378.8°F78.1°F76.6°F79.2°F
May 1478.6°F78.1°F76.6°F79°F
May 1578.6°F78.3°F76.6°F79.3°F
Day 2025 2024 Min Max
May 1678.8°F78.4°F77°F79.2°F
May 1778.8°F78.3°F77°F79.2°F
May 1878.8°F78.4°F76.6°F79.2°F
May 1978.8°F78.4°F76.6°F79.5°F
May 2079.3°F78.3°F76.6°F79.3°F
May 2179.2°F78.1°F77.2°F79.7°F
May 2279.2°F78.6°F76.8°F79.9°F
May 2379.3°F78.6°F76.8°F79.9°F
May 2479.5°F78.6°F76.8°F80.4°F
May 2579.5°F78.6°F76.8°F80.2°F
May 2679.5°F78.6°F77°F80.1°F
May 2779.3°F78.4°F77°F80.4°F
May 2879.3°F78.4°F77°F80.2°F
May 2979.3°F78.8°F76.8°F81°F
May 3079.5°F78.8°F76.6°F80.4°F
May 3179.5°F78.8°F76.6°F80.2°F
Kailua Kona water temp chart in May

Average water temperature in Kailua Kona in May over a decade

20162017201820192020
79°F78.8°F79°F79.3°F78.4°F
20212022202320242025
77.9°F77.7°F78.6°F78.1°F79°F

Kailua Kona sea state in May

Chart comparing the height of waves in Kailua Kona in May 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 Kailua Kona in May

Weather and climate in Kailua Kona in May

This data display average monthly climate indicators in Kailua Kona in May 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 temperature84°F
  • Average LOW temperature72°F
  • Average rainfall51mm/2''

Kailua Kona 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 May?

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

AvrMinMax
Magic Sands78.1°F75.9°F81°F
Kahaluu-Keauhou78.1°F75.9°F80.6°F
Manini Beach78.1°F75.9°F80.4°F
Kua Bay78.3°F76.1°F80.6°F
Kukio78.3°F76.1°F80.6°F
Makalawena Beach78.3°F76.1°F80.8°F
Kealakekua Bay78.1°F75.9°F80.2°F
Honaunau Bay78.1°F75.9°F80.2°F
Two Step Beach78.1°F75.9°F80.2°F
Hookena Beach78.1°F75.9°F80.2°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 Kailua Kona 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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