Hawaii County weather, town by town
54 places in Hawaii County, Hawaii, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1905 to 2026. Station extremes, not official state records.
Hawaii County Weather Facts
Hawaii County has 54 places on myweatherrock (54 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 99°F at Puukohola Heiau 98.1 on July 31, 2015. The coldest night is 21°F at Mauna Loa 5 Nne on February 15, 2019. The wettest day brought 23.7 inches of rain at Kaiwiki Homestead 89.11 on August 23, 2018. The biggest single-day snow measured 4.49 inches at Mauna Loa Slope Obs 39 on December 5, 1958. Those are station measurements from NOAA's daily records, 1905 to 2026, not official state records. By area the largest place is Mountain View, about 55 square miles.
About Hawaii County weather
The map on the Now tab shows every Hawaii County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 50 Hawaii County towns with station normals, the warmest month is August, when the day usually reaches 82°F, and the coldest is January, when the night usually falls to 61°F. August is the wettest, with rain on about 19 days. August afternoons run from about 58°F in Pahala to 87°F in Holualoa. January nights run from about 36°F in Pahala to 68°F in Holualoa.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Hawaii County weather records
Measured at the NOAA stations serving these towns, daily records 1905 to 2026. Station extremes, not official state records.
Common questions about Hawaii County weather
- What is the hottest temperature recorded at a Hawaii County station?
- 99°F at Puukohola Heiau 98.1 on July 31, 2015, in the NOAA daily station records myweatherrock holds (1905 to 2026).
- What is the coldest temperature recorded at a Hawaii County station?
- 21°F at Mauna Loa 5 Nne on February 15, 2019.
- What is the most rain a Hawaii County station has measured in one day?
- 23.7 inches at Kaiwiki Homestead 89.11 on August 23, 2018.
- What is the biggest one-day snowfall at a Hawaii County station?
- 4.49 inches at Mauna Loa Slope Obs 39 on December 5, 1958.
- How many Hawaii County towns have a weather page here?
- 54: 54 census-designated places. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Hawaii County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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