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A green coastline in Hawaii

This month in Hawaii

Hawaii Weather in August

August's climate at Honolulu / Waikiki, Oahu, Hawaii pairs 1.64 inches of rain with 82.5°F days and 77.1°F nights (historical averages). Alaska Airlines through Seattle had the lowest Omaha fare for August 14 to 21 at $719. Daylight on the 15th runs 6:10 am to 7:02 pm (12.9 hours), with Honolulu 5 hours behind Omaha in August.

Plan August with Ann

Photo: Tamara G.P / Pexels

High / low

83° / 77°F

Rain

1.6 in

for the month

Humidity

74%

Wind

16 mph

Hurricane season

In season

Fare from OMA

$719

Aug 14, 2027–Aug 21, 2027

Verdict

Maybe

August in Hawaii: 1.64 in rain, 82.5°F average high; peak hurricane window.

Rule: rain, comfort band and hurricane timing, explained on the method page.

vs last / next month

  • vs July: 1°F warmer, 0.1 in wetter, 1 pts less humid
  • vs September: same highs, 0.2 in drier
  • August sky: 46.9% cloud, 6.69 kWh/m²/day solar. July: 46.6% / 6.97; September: 46.7% / 6.22 (NASA).
  • 2027-08-15: sunrise 06:10, sunset 19:02; 12.86 hours of light, changing -33 minutes across August. July daylight: 13.30 hours; September: 12.27. Omaha clock offset: -5 hours.
  • August water: 80.6°F (NOAA 2015–2024). July water: 79.9°F; September: 81.1°F. Dew point: 70.2°F in August, 69.7°F in July, 70.2°F in September (NASA 2001–2025).
  • Fares: $719 in August versus $908 in July; September then drops to $712.

NASA POWER 2001–2025 means, Honolulu / Waikiki, Oahu, Hawaii.

Holidays & events

  • On the Honolulu calendar for August (Hawaii DHRD state holiday list): Statehood Day on August 20. August crowd levels: no source, so left out.

Pack for August (rule shown)

  • Hat with a strap; skip the umbrellawind 16 mph ≥ 15 mph
  • Travel insurance confirmation and the resort's weather policyinside hurricane season
  • Reef-safe sunscreen and a rash guardSolar 6.69 kWh/m2/day in August (line: 5.0). The UV figure NASA gives, 2.62, is a daily mean, so solar energy stands in for the UV 8+ rule.
  • A REAL ID or other TSA-accepted IDNo passport for a August Hawaii trip; TSA needs an acceptable ID.

Flight detail, OMA to HNL

$719

Alaska Airlines, 1 stop via SEA, 12h 12m out. 46 itineraries. Observed Oct 31, 2026; not a quote.

Guide, sources and the 12-month table: Hawaii.

August questions

How does August compare with nearby months in Hawaii?
August: 82.5°F mean high and 77.1°F low, 1.64 in rain. July: 81.7°F / 76.3°F / 1.52 in; September: 82.8°F / 77.2°F / 1.83 in.
What holidays fall in August in Hawaii?
1 in August: Statehood Day (August 20).

Sources: ignav.com · weather.gov · dhrd.hawaii.gov · power.larc.nasa.gov · coastwatch.pfeg.noaa.gov · tsa.gov · power.larc.nasa.gov

From Ann

August in Hawaii, priced for your week.

Considering August in Hawaii? Share your dates and budget. Ann checks OMA–HNL flights and places to stay against this 1.64 in rain / 82.5°F climate record.

Plan AugustCall or text (402) 707-4877

Photo: Tamara G.P / Pexels