The highest day temperature in July 2025 was 86°F. The lowest night temperature was 75°F. The average values for day and night temperatures during July were 82.4°F и 76.8°F respectivly.

The average sea surface temperature in July 2025 for Kahului was 82.2°F. The maximum and minimum values were 81.6°F and 83.0°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

Precipitation total in July for Kahului is 0.4 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 13.0 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Kahului in July is 9.6 hours.