Kailua, Hawaii Weather
August opens — storms become routine. Day 43 of summer. Read this microseason across nine climate regions →
Kailua weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Drizzle93%0.06″82°74°—
- MondayAug 3Heavy Drizzle98%0.24″81°73°-1°
- TuesdayAug 4Drizzle100%0.24″81°73°0°
- WednesdayAug 5Drizzle85%0.13″83°73°+2°
- ThursdayAug 6Light Drizzle78%0.07″83°74°0°
- FridayAug 7Drizzle60%0.17″82°74°-1°
- SaturdayAug 8Light Drizzle75%0.04″81°77°-1°
AQI 48 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 6 hours of recent rain — PM2.5 down to 9.3 µg/m³, PM10 to 16.0 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM scrubbed by 6 hours of recent rain — PM2.5 down to 9.3 µg/m³, PM10 to 16.0 µg/m³.
- PM2.5/PM10
- 0.58
- Wind
- breezy
- Recent rain
- 6h in last 6h
- Pattern
- washed out
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
Red sky at night, sailor's delight.
- Moonrise
- 9:17 PM
- Moonset
- 9:44 AM
- In sign
- ♓︎ Pisces
August opens — storms become routine
Kailua at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: December 25 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP code: 96734
15-Day Forecast — Kailua
- Sun82°74°93%
- Mon81°73°98%
- Tue81°73°100%
- Wed83°73°85%
- Thu83°74°78%
- Fri82°74°60%
- Sat81°77°75%
- Sun81°77°81%
- Mon82°76°79%
- Tue82°76°68%
- Wed82°76°74%
- Thu82°76°83%
- Fri80°76°86%
- Sat81°77°79%
- Sun80°77°85%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Kailua
Right now in the garden
Peak growing season
As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Sun & seasons in Kailua
Kailua sits in Honolulu County, where the year’s longest day runs 13h 26m of daylight and its shortest just 10h 50m — a swing of +2h 36m between the June and December solstices.
Honolulu, the state’s largest city, lies about 8 miles to the WSW. The nearest town Kailua tracks is Honolulu, roughly 8 miles to the WSW.
Air quality in Kailua’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 28). See the full air-quality history for Kailua.
ZIP codes in Kailua
- 96734