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 »
  In Honolulu, Hawaii, in August, the average water temperature is 79.5°F (26.4°C). In Honolulu, Hawaii, during August, the rain falls for 16.8 days and regularly aggregates up to 0.98" (25mm) of precipitation.
• Hilo - August »
  In Hilo, August records the average highest temperatures, peaking at 75.4°F (24.1°C) and reaching a low of 68.9°F (20.5°C). In Hilo, in August, during 19.5 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.
• Kailua - August »
  April, June through August and December, with an average relative humidity of 76%, are most humid months in Kailua. In Kailua in August, the average water temperature is 79.5°F (26.4°C).
• Kaneohe - August »
  February through April, July, August, October and December, with an average relative humidity of 76%, are most humid months in Kaneohe, Hawaii. In August, the average ocean temperature in Kaneohe is 79.5°F (26.4°C).
• Kahului - August »
  Kahului experiences a subtle adjustment in high-temperatures to a still moderately hot 79.5°F (26.4°C) with the onset of August, maintaining near parity with July's 78.8°F (26°C). In Kahului, during August, the rain falls for 8.7 days and regularly aggregates up to 0.43" (11mm) of precipitation.
• 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%. Ewa Gentry sees the average highest temperatures during the months of August and September, peaking at 81.5°F (27.5°C).
• Kihei - August »
  In Kihei in August, it is raining for 8.7 days, with typically 0.43" (11mm) of accumulated precipitation. 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 »
  In Wahiawa, in August, it is raining for 23.8 days, with typically 1.69" (43mm) of accumulated precipitation. On the last day of August, in Wahiawa, sunrise is at 6:15 am and sunset at 6:48 pm HST.
• Schofield Barracks - August »
  Schofield Barracks witnesses its peak temperatures during August and September, when the average high-temperature reaches 87.1°F (30.6°C). The months of August and September see the peak of Schofield Barracks's temperatures, averaging a high of 87.1°F (30.6°C).
• Wailuku - August »
  The months with the highest humidity in Wailuku are July and August, with an average relative humidity of 76%. In Wailuku, during August, the rain falls for 8.7 days and regularly aggregates up to 0.43" (11mm) of precipitation.