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Weather & Climate in Kailua CDP (Hawaii County), HI
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kailua CDP (Hawaii County) experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 43°F in January while summers reach 49°F in July / relatively mild seasonal variation. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 14.3 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 24 / among the cleanest air in the country. The city sits at an elevation of 85 feet.
Temperature
43°F Jan (6°C)
49°F Jul (10°C)
| Annual Average | 46.0°F |
| 15% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 49°F (10°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 85 ft (26 m) |
| Area | 39.9 sq mi (103.3 km²) |
| Population Density | 1,583/sq mi |
| Coordinates | 19.6456°N, 155.9977°W |
| Timezone | Pacific/Honolulu |
| County | Hawaii County County |
| Nearest Airport | Ellison Onizuka Kona International At Keahole (KOA) 4 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 24.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 98.5 / 100 |
| Social Vulnerability | 56.8 / 100 |
| Community Resilience | 56.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively High |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | No Rating |
| Winter Weather | Very Low |
| Lightning | Very High |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Coastal Flood | Relatively Low |
| Tsunami | Relatively Moderate |
| Volcano | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
14,289 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| May 4, 2018 | 18 km SSW of Leilani Estates, Hawaii | M6.9 | 111 km | 6 km |
| Feb 9, 2024 | 2 km SW of Pāhala, Hawaii | M5.9 | 74 km | 37 km |
| May 4, 2018 | 18 km SW of Leilani Estates, Hawaii | M5.7 | 109 km | 6 km |
| Apr 17, 1999 | 5 km N of P?hala, Hawaii | M5.6 | 69 km | 9 km |
| Mar 13, 2019 | 13 km SSE of Volcano, Hawaii | M5.5 | 91 km | 7 km |
| May 8, 1991 | Hawaii region, Hawaii | M5.5 | 41 km | 29 km |
| Jul 17, 2005 | 35 km SSE of Naalehu, Hawaii | M5.4 | 113 km | 32 km |
| Aug 14, 2007 | 15 km SSE of Fern Forest, Hawaii | M5.4 | 103 km | 9 km |
| Apr 14, 2019 | 20 km E of Kalaoa, Hawaii | M5.3 | 24 km | 13 km |
| Jul 15, 2005 | 50 km NNE of Pa‘auilo, Hawaii | M5.3 | 126 km | 15 km |
| Jun 5, 2013 | 54 km SE of P?hala, Hawaii | M5.3 | 128 km | 40 km |
| Jun 8, 2017 | 15 km S of Fern Forest, Hawaii | M5.3 | 98 km | 6 km |
| Feb 1, 1994 | 19 km ENE of P?hala, Hawaii | M5.3 | 85 km | 34 km |
| Dec 9, 1991 | 20 km SSW of Hawaiian Ocean View, Hawaii | M5.2 | 87 km | 44 km |
| Jun 28, 2015 | 12 km SSE of Volcano, Hawaii | M5.2 | 90 km | 8 km |
| Jul 5, 2021 | 12 km NNW of Kukuihaele, Hawaii | M5.2 | 75 km | 27 km |
| Jun 27, 1998 | 51 km NW of Kalaoa, Hawaii | M5.1 | 58 km | 4 km |
| Jun 30, 1997 | 14 km SSE of Fern Forest, Hawaii | M5.1 | 103 km | 8 km |
| May 13, 2005 | 45 km ESE of Naalehu, Hawaii | M5.1 | 120 km | 43 km |
| May 3, 2018 | 15 km SSE of Fern Forest, Hawaii | M5.1 | 103 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Hone | Category 1 | 86 mph | 138 km |
| 2020 | Douglas | Category 1 | 92 mph | 177 km |
| 2018 | Lane | Category 4 | 132 mph | 240 km |
| 2016 | Lester | Category 1 | 86 mph | 293 km |
| 2014 | Iselle | Category 1 | — | 245 km |
| 2014 | Ana | Category 1 | 86 mph | 241 km |
| 2007 | Flossie | Category 2 | 98 mph | 250 km |
| 1986 | Estelle | Category 2 | 92 mph | 294 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
6 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jan 28, 1971 | EF2 | 3 km | 1.0 mi | 0 |
| Mar 25, 1988 | EF1 | 55 km | 0.2 mi | 0 |
| Mar 20, 1980 | EF1 | 94 km | 1.0 mi | 0 |
| Feb 28, 2004 | EF0 | 76 km | 5.0 mi | 0 |
| Apr 3, 1986 | EF0 | 94 km | 0.2 mi | 0 |
| Mar 19, 1955 | EF0 | 97 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
10 tsunamis recorded within 500 km. Highest wave on record: 14.3 m (47 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1975 | HAWAII | Eruption + Earthquake | 14.3 m | 2 | 103 km |
| 1868 | HAWAII | Earthquake | 13.7 m | 77 | 89 km |
| 1869 | OFF COAST OF HAWAII | Unknown | 8.2 m | — | 112 km |
| 1919 | ALIKA, HAWAII | Explosion | 4.3 m | — | 47 km |
| 1951 | HAWAII | Earthquake | 3.6 m | — | 16 km |
| 1952 | HAWAII | Earthquake | 3.0 m | — | 121 km |
| 1908 | HAWAII | Earthquake | 1.2 m | — | 127 km |
| 2018 | HAWAII | Eruption | 0.4 m | — | 111 km |
| 1989 | HAWAII | Eruption + Earthquake | 0.3 m | — | 101 km |
| 2006 | HAWAII | Earthquake | 0.1 m | — | 27 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Hualalai (14 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hualalai | Shield | 2,523 m (8,278 ft) | 1801 | 14 km |
| Mauna Loa | Shield | 4,170 m (13,681 ft) | 1984 | 45 km |
| Mauna Kea | Shield | 4,205 m (13,796 ft) | -2460 | 59 km |
| Kilauea | Shield | 1,222 m (4,009 ft) | 2018 | 79 km |
| Haleakala | Shield | 3,055 m (10,023 ft) | 1750 | 121 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
17 wildfires (100+ acres) recorded within 100 km. Largest: MANA ROAD FIRE (39,849 acres, 2021).
| Year | Name | Acres Burned | Distance |
| 2021 | MANA ROAD FIRE | 39,849 | 49 km |
| 2005 | LALAMILO | 18,960 | 45 km |
| 2018 | HIGHWAY 190 FIRE | 15,617 | 38 km |
| 2022 | LEILANI | 14,674 | 33 km |
| 2007 | WAIKOLOA FIRE | 8,791 | 35 km |
| 2018 | KEAUHOU RANCH BRUSH FIRE | 3,845 | 72 km |
| 2015 | KAWAIHAE FIRE | 3,743 | 49 km |
| 2003 | LUHI FIRE | 3,479 | 96 km |
| 2002 | KUPUKUPU | 2,479 | 98 km |
| 2003 | PANAU IKI | 1,926 | 100 km |
| 2016 | PUUWAAWAA MAKAI | 1,691 | 21 km |
| 2017 | WAIKAPUNA FIRE | 1,591 | 81 km |
| 1992 | KAWAIHAE | 1,567 | 48 km |
| 2000 | AHUWELA | 1,482 | 70 km |
| 2000 | UNNAMED | 1,178 | 65 km |
| 2005 | AKONE-PULE HWY | 1,148 | 55 km |
| 2000 | BROOMSEDGE | 1,011 | 77 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 5.3 in | Coldest |
| February | 63°F (17°C) | 5.5 in | |
| March | 64°F (18°C) | 7.4 in | |
| April | 65°F (18°C) | 8.6 in | |
| May | 66°F (19°C) | 9.9 in | Wettest |
| June | 67°F (19°C) | 5.6 in | |
| July | 49°F (10°C) | 5.8 in | |
| August | 69°F (20°C) | 5.6 in | Warmest |
| September | 69°F (20°C) | 5.4 in | |
| October | 68°F (20°C) | 4.9 in | |
| November | 67°F (19°C) | 6.4 in | |
| December | 64°F (18°C) | 4.4 in | Driest |
Kailua CDP (Hawaii County) has a seasonal temperature swing of 26°F / from 43°F in January to 69°F in August. Total annual precipitation is 74.8 inches, with May being the wettest month (9.9") and December the driest (4.4").