August weather forecast
Hawaii, USA

August in Hawaii continues the summer saga with its balmy embrace. Temperatures typically fluctuate between 74°F (23.3°C) and 89°F (31.7°C), possibly making it the warmest month of the year. Despite the potential for elevated warmth, the omnipresent trade winds and the vast Pacific Ocean ensure a temperate reprieve.

In terms of precipitation, August largely mirrors July, retaining its place in the dry season. The iconic Mount Waialeale on Kauai experiences minimal rainfall, and while the windward parts might be treated to occasional showers, they are brief and far between. The leeward coasts, in contrast, bask under extended stretches of sunlight, further amplifying Hawaii's reputation as a summer paradise.

Elevated areas, specifically Mauna Kea and Mauna Loa, offer unparalleled celestial vistas during August nights. The clarity of the atmosphere and limited light pollution make stargazing an ethereal experience. Meteor showers and other astral phenomena are frequently observable, adding to the magic of Hawaiian nights.

Comparing August to its predecessor, July, there's a slight increment in temperature, solidifying its stature as a peak summer month. However, August also marks the height of the Pacific hurricane season. While direct hits on Hawaii are rare, the potential for increased storm activity remains. As the month winds down, the impending arrival of September heralds subtle signs of Hawaii's transition towards its wetter season.

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• Honolulu - August »
  On the last day of August, in Honolulu, sunrise is at 6:14 am and sunset at 6:48 pm HST. In Honolulu, in August, during 16.8 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.
• Hilo - August »
  In Hilo in August, it is raining for 19.5 days, with typically 2.52" (64mm) of accumulated precipitation. With average high temperatures of 75.4°F (24.1°C) and lows of 68.9°F (20.5°C), August is the warmest month in Hilo.
• Kailua - August »
  The months with the highest humidity in Kailua are April, June through August and December, with an average relative humidity of 76%. On the first day of August in Kailua sunrise is at 6:04 am and sunset at 7:10 pm.
• Kaneohe - August »
  February through April, July, August, October and December, with an average relative humidity of 76%, are most humid months in Kaneohe, Hawaii. February through April, July, August, October and December, with an average relative humidity of 76%, are the most humid months in Kaneohe.
• Kahului - August »
  The months with the highest humidity in Kahului are July and August, with an average relative humidity of 76%. The commencement of August in Kahului brings an average high-temperature of a still warm 79.5°F (26.4°C), marking an inconsequential divergence from July.
• Ewa Gentry - August »
  The months with the lowest humidity in Ewa Gentry are January, April through June, August through November, with an average relative humidity of 74%. On the first day of August in Ewa Gentry sunrise is at 6:05 am and sunset at 7:11 pm.
• Kihei - August »
  In Kihei in August, the average water temperature is 79.3°F (26.3°C). August continues the warm and sunny trend in Kihei, offering a summertime vibe with the highest sea temperature at 79.4°F (26.3°C).
• Wahiawa - August »
  August, recording an average high temperature of 82.6°F (28.1°C) and a low temperature of 73.9°F (23.3°C), is Wahiawa's warmest month. On the last day of August, in Wahiawa, sunrise is at 6:15 am and sunset at 6:49 pm HST.
• Schofield Barracks - August »
  The highest point of temperatures in Schofield Barracks falls in August and September, when the average high-temperature ascends to 87.1°F (30.6°C). On the last day of August, in Schofield Barracks, sunrise is at 6:15 am and sunset at 6:49 pm HST.
• Wailuku - August »
  July and August, with an average relative humidity of 76%, are most humid months in Wailuku, Hawaii. On the first day of August in Wailuku, Hawaii, sunrise is at 6:00 am and sunset at 7:04 pm.