Today | Weather | Tuesday, August 11, 2026

Active Weather Warnings

Coastal Flood Statement

Weather in Kihei, Hawaii

11:44 PM

Today

Day 90°

Night 73°

Precipitation 3 %

Wind 8 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Kihei Weather Forecast Updated

Air Quality in Kihei

NOW

28 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.57 µg/m³

PM₁₀ 10.7 µg/m³

O₃ 0.031 ppm

NO₂ 0.1 ppb

SO₂ 0.5 ppb

CO 0.06 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 – 4.57 µg/m³

PM₁₀ – 10.7 µg/m³

O₃ – 60.25 µg/m³

NO₂ – 0.1 µg/m³

SO₂ – 1.3 µg/m³

CO – 71.04 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Kihei

Minor Expected Likely

Coastal Flood Statement

Coastal Flood Statement issued August 11 at 3:26PM HST until August 12 at 6:00PM HST by NWS Honolulu HI

Aug 11, 3:26 PM → Aug 12, 6:00 PM

...MINOR COASTAL FLOODING DURING HIGH TIDE THROUGH WEDNESDAY
AFTERNOON...

.Peak monthly high tides combined with water levels that are
running higher than predicted will lead to minor flooding in low
lying coastal areas. Coastal flooding is possible through
Wednesday around the daily peak afternoon high tide.

WHAT: Isolated minor coastal flooding.

WHERE: Vulnerable low-lying coastal roadways, docks, boat
ramps and other coastal infrastructure of all Hawaiian Islands.

WHEN: Through Wednesday afternoon.

IMPACTS: Flooding of beaches that are normally dry, minor
coastal erosion, and saltwater inundation.

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Avoid driving through flooded roadways. If you are forced to drive through salt water, be sure to rinse your vehicle with fresh water. Move electronics, vehicles or other valuables to higher ground. Monitor vessels to ensure mooring lines don't get too tight and watch out for overwash around boat ramps. Secure canoes or other watercraft stowed on beaches.

Updated: Aug 11, 10:10 PM Source: NWS Alert