World sea water temperatures

Water temperature in Lahaina (HI) in July

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Is it warm enough to swim in Lahaina in July? Average water temperature in Lahaina in July is 79.7°F and therefore suitable for comfortable swimming. The warmest sea in Lahaina in July is 82.8°F, and the coldest is 76.8°F. Average high air temperature in Lahaina in July is 87°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 Lahaina

Changes water temperature in Lahaina in July 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 180.1°F79.3°F77°F81.9°F
July 280.4°F79.2°F77.2°F82.2°F
July 380.2°F79.2°F76.8°F81.9°F
July 479.9°F79.5°F77°F82°F
July 579.7°F79.7°F77.2°F82.2°F
July 679.7°F79.5°F77.4°F82.8°F
July 779.2°F79.2°F77.2°F82.8°F
July 879.5°F79.2°F77.4°F82.4°F
July 979.2°F79.5°F77.2°F82.2°F
July 1079.5°F79.2°F77.4°F82.4°F
July 1179.3°F78.8°F77.4°F82.4°F
July 1279.5°F79°F77°F81.9°F
July 1379.5°F79°F77°F82°F
July 1479.5°F78.8°F77.2°F81.9°F
July 1580.1°F79°F77.4°F81.7°F
Day 2025 2024 Min Max
July 1679.9°F79.2°F77.4°F82.4°F
July 1780.1°F78.8°F77.4°F82.6°F
July 1880.2°F78.8°F77.7°F82.2°F
July 1980.4°F79.2°F77.7°F82.2°F
July 2080.8°F79.3°F77.9°F82.6°F
July 2180.6°F79.3°F78.1°F82.4°F
July 2280.4°F79.3°F78.1°F82.2°F
July 2380.4°F79.7°F78.1°F82.6°F
July 2480.1°F79.3°F78.1°F82.4°F
July 2580.4°F79.3°F78.1°F82.6°F
July 2680.2°F79.3°F78.4°F82.8°F
July 2780.6°F79.3°F78.4°F82.6°F
July 2880.8°F79.2°F78.3°F82.4°F
July 2981.3°F79.2°F78.1°F82°F
July 3080.8°F79°F78.1°F82.4°F
July 3181.1°F79.2°F77.9°F82.4°F
Lahaina water temp chart in July

Average water temperature in Lahaina in July over a decade

20162017201820192020
80.6°F80.6°F79.9°F82.2°F80.6°F
20212022202320242025
80.2°F79.7°F80.2°F79.2°F80.1°F

Lahaina sea state in July

Chart comparing the height of waves in Lahaina in July 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 Lahaina in July

Weather and climate in Lahaina in July

This data display average monthly climate indicators in Lahaina in July 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 temperature87°F
  • Average LOW temperature70°F
  • Average rainfall days8 days
  • Average rainfall76mm/3''
  • Average daylight13h
  • Average sunshine9h
  • Average UV index12

Lahaina 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 July?

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

AvrMinMax
Olowalu79.7°F76.8°F82.8°F
Kaanapali79.7°F76.8°F82.8°F
Kahekili Beach Park79.7°F76.8°F82.8°F
Kahana79.5°F76.6°F82.4°F
Waihee-Waiehu78.6°F76.1°F80.8°F
Maalaea79.5°F76.8°F82.4°F
Sugar Beach79.5°F76.8°F82.4°F
Napili Bay79.2°F76.3°F81.7°F
Kapalua79°F76.3°F81.3°F
Honolua Bay79°F76.3°F81.3°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 Lahaina 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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