Today | Weather | Friday, May 22, 2026

Active Weather Warnings

Small Craft Advisory

Weather in East Honolulu, Hawaii

12:16 AM

Now

73° F

Feels Like 70°

Precipitation 7 %

Wind 15 mph

Humidity 73 %

Today

Day 82°

Night 72°

Precipitation 20 %

Wind 19 mph

UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

East Honolulu Weather Forecast Updated

Last updated on May 21, 2026 at 11:15 PM

Air Quality in East Honolulu

NOW

38 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 3.96 µg/m³

PM₁₀ 15.27 µg/m³

O₃ 0.041 ppm

NO₂ 0.1 ppb

SO₂ 0.1 ppb

CO 0.08 ppm

NH₃ 0 µg/m³

NO 0 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 3.96 µg/m³

PM₁₀ – 15.27 µg/m³

O₃ – 81.21 µg/m³

NO₂ – 0.14 µg/m³

SO₂ – 0.21 µg/m³

CO – 89.57 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for East Honolulu

Minor Expected Likely

Small Craft Advisory

Small Craft Advisory issued May 21 at 3:17PM HST until May 23 at 6:00PM HST by NWS Honolulu HI

May 21, 3:17 PM → May 23, 6:00 PM

WHAT: East winds 20 to 30 kt. Seas 7 to 10 feet.

WHERE: Kauai Northwest Waters, Kauai Windward Waters, Kauai
Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu
Leeward Waters, Kaiwi Channel, Maui County Windward Waters,
Maui County Leeward Waters, Big Island Windward Waters, Big
Island Leeward Waters and Big Island Southeast Waters.

WHEN: Until 6 PM HST Saturday.

IMPACTS: Conditions will be hazardous to small craft.

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Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions.

Updated: May 21, 11:15 PM Source: NWS Alert