Honolulu County weather, town by town
54 places in Honolulu 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.
Honolulu County Weather Facts
Honolulu 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 97°F at Waimea Valley 892.2 on July 17, 1989. The coldest night is 45°F at Waimea Valley 892.2 on February 16, 1986. The wettest day brought 19 inches of rain at Waiahole 837 on March 20, 1991. Those are station measurements from NOAA's daily records, 1905 to 2026, not official state records. By area the largest place is Honolulu, about 61 square miles.
About Honolulu County weather
The map on the Now tab shows every Honolulu 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 38 Honolulu County towns with station normals, the warmest month is August, when the day usually reaches 86°F, and the coldest is February, when the night usually falls to 66°F. November is the wettest, with rain on about 13 days. August afternoons run from about 81°F in East Honolulu to 89°F in Aiea. February nights run from about 62°F in Haleiwa to 68°F in Ahuimanu.
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.
Honolulu 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 Honolulu County weather
- What is the hottest temperature recorded at a Honolulu County station?
- 97°F at Waimea Valley 892.2 on July 17, 1989, in the NOAA daily station records myweatherrock holds (1905 to 2026).
- What is the coldest temperature recorded at a Honolulu County station?
- 45°F at Waimea Valley 892.2 on February 16, 1986.
- What is the most rain a Honolulu County station has measured in one day?
- 19 inches at Waiahole 837 on March 20, 1991.
- How many Honolulu 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 Honolulu 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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