July weather forecast
Hawaii, USA

July stands tall as one of the hottest months in Hawaii, with temperatures oscillating between 74°F (23.3°C) and 88°F (31.1°C). The islands are immersed in the zenith of summer, radiating with sunlit days and balmy nights.

Rainfall in July is scant, in line with the ongoing dry season. Even historically rain-laden zones, like Mount Waialeale on Kauai, only witness sporadic and short-lived showers. While the windward regions might receive the occasional drizzle, leeward coasts are predominantly sun-drenched, making them ideal for beach enthusiasts and water sports aficionados.

High altitudes, such as Mauna Kea and Mauna Loa, consistently offer pristine skies. These clear conditions, combined with the absence of city light pollution, make these zones astronomical havens. Night skies in July are especially mesmerizing, with celestial events like meteor showers often visible to the naked eye.

While July and June share many climatic similarities, the former tends to be slightly warmer, truly representing the pinnacle of Hawaiian summer. Moreover, July ushers in a period where the threat of Pacific hurricanes and thunderstorms increases, even though these events seldom impact Hawaii with significant intensity. As July concludes, the approach of August promises more sun-filled days, albeit with a heightened alertness for tropical disturbances.

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• Honolulu - July »
  The month with the least rainfall in Honolulu is July, when the rain falls for 16.4 days and typically collects 0.67" (17mm) of precipitation. In Honolulu in July, during 16.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.
• Hilo - July »
  January, May through July, with an average relative humidity of 78%, are the least humid months in Hilo, Hawaii. July, the peak of summer in Hilo, has the highest average high temperature of 74.7°F (23.7°C) and the longest daylight hours.
• Kailua - July »
  July through October, with an average maximum UV index of 7, are months with the highest UV index in Kailua. The months with the highest UV index in Kailua are July through October, with an average maximum UV index of 7.
• Kaneohe - July »
  The month with the least rainfall in Kaneohe is July, when the rain falls for 13.9 days and typically collects 0.71" (18mm) of precipitation. February through April, July, August, October and December, with an average relative humidity of 76%, are most humid months in Kaneohe, Hawaii.
• Kahului - July »
  In Kahului in July, the average water temperature is 78.4°F (25.8°C). The months with the highest UV index in Kahului are July through October, with an average maximum UV index of 7.
• Ewa Gentry - July »
  In Ewa Gentry, during July, the rain falls for 11.3 days and regularly aggregates up to 0.43" (11mm) of precipitation. July is the month with the least rainfall in Ewa Gentry, Hawaii.
• Kihei - July »
  The months with the highest humidity in Kihei are July and August, with an average relative humidity of 76%. July through October, with an average maximum UV index of 7, are months with the highest UV index in Kihei, Hawaii.
• Wahiawa - July »
  The month of July in Wahiawa, Hawaii, is marked by an average minimum temperature of 73.6°F (23.1°C), slightly cooler than its daytime counterpart. July experiences a further increase in temperature, making it the perfect month to immerse in Wahiawa's beach culture.
• Schofield Barracks - July »
  With the year's highest average temperature touching 86.6°F (30.3°C), July is the hottest month in Schofield Barracks, Hawaii. On the first day of July in Schofield Barracks, sunrise is at 5:53 am and sunset at 7:18 pm.
• Wailuku - July »
  In Wailuku, Hawaii, in July, it is raining for 8.5 days, with typically 0.39" (10mm) of accumulated precipitation. July and August, with an average relative humidity of 76%, are most humid months in Wailuku, Hawaii.