SeasonScore
Honolulu, United States
Photo: Alfred Adler · CC BY-SA 3.0

United States

Honolulu in August

🔥 Hot dry season

Hot, humid and mostly dry.

🎒 Pack: light, breathable clothes & sunscreen · quick-dry fabrics · sunglasses & hat

Best months: Jan (9.3), Feb (9.3), Dec (9.3)

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Why August scores 8.6What goes into the score

How it works
🌡️ 34° / 22°C🌧️ 21 mm💧 dew pt 22°🍃 PM2.5 6
  • Weather comfort7.7
    • !Hot (34°C highs / 22°C lows)
    • !Very humid/sticky (dew point 21.8°C)
    • ✓Mostly dry (~21 mm rain)
  • Air quality9.8
    • ✓Good (within WHO guideline) (PM2.5 ~6 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline7.5
    • ·Increased caution
Compare monthsPut August side by side with another month
AugJan
Score8.6 Excellent9.3 Excellent
Season🔥 Hot dry season☀️ Dry season
High / low34° / 22°27° / 18°
Rain21 mm47 mm
Humiditydew pt 22°dew pt 19°
PM2.56 µg/m³6 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Honolulu weather-station normals. Rainfall: Honolulu weather-station normals (national met service).

Holidays & crowdsAugust 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in United States this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore HonoluluEvents, sights, food & souvenirs

Check event dates locally

Hawaii's capital on the island of Oʻahu, combining Waikīkī beach resorts with Pearl Harbor history, Hawaiian royal heritage and volcanic hikes.

Events in August

No major events on our calendar for August.

Coming up later

Aloha FestivalsDate variesUsually September

A celebration of Hawaiian culture with a royal court, parade and street party.

Why go: Kalākaua Avenue closes for parts of the festival.

Where: Waikīkī and Honolulu

Honolulu MarathonDate variesUsually the second Sunday of December

One of the largest marathons in the US, with no time limit for finishers.

Why go: Roads close early on race morning.

Where: Downtown to Kapiʻolani Park

Humpback whale seasonDate variesUsually December to April

Humpback whales migrate to Hawaii to breed and give birth.

Why go: Whale-watching boats run from Honolulu harbours.

Where: Waters around Oʻahu