SmogRank / United States / Hawaii / Makakilo / Kapolei / Honokai Hale

Makakilo / Kapolei / Honokai Hale, month by month

Makakilo / Kapolei / Honokai Hale has a measured daily mean on 1,041 days since 1 January 2023. Its worst month was January 2024, at 36 US AQI (6.4 µg/m³), 1,704th of 2,385 cities on that month's world ranking. Its cleanest was September 2025, at 19 US AQI (3.4 µg/m³). 2025 averaged 21 US AQI (3.7 µg/m³), against 26 US AQI (4.7 µg/m³) in 2024.

Every month since 2023

2026too few days for a mean (a year needs 199)59 days measured
Jan15 daysFeb11 daysMar16 daysApr15 daysMay2 daysJunnoneJulnoneAugnoneSepnoneOctnone
202521 for the year280 days measured2,656th of 2,681 in the world
Jan26#2,295Feb24#2,474Mar27#2,508Apr27#2,609May20#2,675Jun19#2,450Jul19#2,820Aug21#2,831Sep19#3,026OctnoneNov6 daysDec18 days
202426 for the year353 days measured1,980th of 2,097 in the world
Jan36#1,704Feb26#2,197Mar25#1,411Apr28#1,973May26#2,340Jun28#2,224Jul23#2,429Aug26#1,914Sep22#1,926Oct24#1,896Nov26#2,376Dec24#2,391
202328 for the year349 days measured1,255th of 1,355 in the world
Jan34#969Feb33#1,014Mar33#731Apr29#1,315May34#1,262Jun26#1,454Jul24#1,304Aug31#1,744Sep25#2,053Oct21#1,938Nov28#1,970Dec24#2,095
Each square is a month's mean PM2.5 in US AQI from Makakilo / Kapolei / Honokai Hale's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Makakilo / Kapolei / Honokai Hale marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

13 months
MonthWhy
Oct 2026No day measured. The others: 11 with no readings from the monitor.
Sep 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 20262 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Apr 202615 of 30 days measured; a month needs 21. The others: 15 with under 18 hours of readings or readings that failed our checks.
Mar 202616 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks.
Feb 202611 of 28 days measured; a month needs 20. The others: 17 with under 18 hours of readings or readings that failed our checks.
Jan 202615 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Dec 202518 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Nov 20256 of 30 days measured; a month needs 21. The others: 24 with under 18 hours of readings or readings that failed our checks.
Oct 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Makakilo / Kapolei / Honokai Hale's worst months

MonthUS AQIDays measuredWorld rank
January 2024 366.4 µg/m³26 of 311,704thof 2,385
May 2023 346.2 µg/m³31 of 311,262ndof 1,600
January 2023 346.1 µg/m³30 of 31969thof 1,261
February 2023 336.0 µg/m³26 of 281,014thof 1,129
March 2023 335.9 µg/m³30 of 31731stof 911
August 2023 315.5 µg/m³31 of 311,744thof 1,980

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Makakilo / Kapolei / Honokai Hale's worst days

DayUS AQI
14 Jan 2023 6416.2 µg/m³
8 Aug 2023 6114.4 µg/m³
10 Jan 2023 5712.1 µg/m³
4 Apr 2025 5612.0 µg/m³
17 Jan 2024 5511.5 µg/m³
31 Oct 2023 5511.4 µg/m³
25 Mar 2024 5410.8 µg/m³
28 Mar 2025 5410.7 µg/m³
7 May 2023 5310.4 µg/m³
7 Aug 2023 529.9 µg/m³

Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Makakilo / Kapolei / Honokai Hale, United States, 1 Jan 2023 – 7 May 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/us/makakilo-kapolei-honokai-hale/history (accessed 12 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Makakilo / Kapolei / Honokai Hale now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 19:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).