Haleiwa, Hawaii Weather
August opens — storms become routine. Day 43 of summer. Read this microseason across nine climate regions →
Haleiwa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Drizzle98%0.23″83°73°—
- MondayAug 3Drizzle90%0.20″83°72°0°
- TuesdayAug 4Drizzle95%0.07″83°73°0°
- WednesdayAug 5Light Drizzle50%—84°74°+1°
- ThursdayAug 6Light Drizzle67%0.02″85°74°+1°
- FridayAug 7Light Drizzle71%0.08″84°74°-1°
- SaturdayAug 8Light Drizzle75%0.13″84°76°0°
AQI 43 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM scrubbed by 6 hours of recent rain — PM2.5 down to 8.1 µg/m³, PM10 to 14.3 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 8.1 µg/m³, PM10 to 14.3 µg/m³.
- PM2.5/PM10
- 0.57
- 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
- 9:19 PM
- Moonset
- 9:46 AM
- In sign
- ♓︎ Pisces
August opens — storms become routine
Haleiwa at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: December 27 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP code: 96712
15-Day Forecast — Haleiwa
- Sun83°73°98%
- Mon83°72°90%
- Tue83°73°95%
- Wed84°74°50%
- Thu85°74°67%
- Fri84°74°71%
- Sat84°76°75%
- Sun85°76°75%
- Mon85°74°75%
- Tue85°74°58%
- Wed86°75°66%
- Thu85°76°80%
- Fri82°75°85%
- Sat84°76°89%
- Sun83°76°73%
Forecast data from Open-Meteo (CC BY 4.0).
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 Haleiwa
Haleiwa sits in Honolulu County, where the year’s longest day runs 13h 27m of daylight and its shortest just 10h 49m — a swing of +2h 38m between the June and December solstices.
Honolulu, the state’s largest city, lies about 25 miles to the SE. The nearest town Haleiwa tracks is Honolulu, roughly 25 miles to the SE.
Air quality in Haleiwa’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 28). See the full air-quality history for Haleiwa.
ZIP codes in Haleiwa
- 96712
- 96791