Kauai County weather, town by town
23 places in Kauai 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.
Kauai County Weather Facts
Kauai County has 23 places on myweatherrock (23 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 Mahaulepu 941.1 on May 26, 2009. The coldest night is 40°F at Mahaulepu 941.1 on January 9, 1995. The wettest day brought 20.55 inches of rain at Koloa Mauka 994 on March 5, 2012. Those are station measurements from NOAA's daily records, 1905 to 2026, not official state records. By area the largest place is Kapaa, about 10 square miles.
About Kauai County weather
The map on the Now tab shows every Kauai 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 23 Kauai County towns with station normals, the warmest month is August, when the day usually reaches 84°F, and the coldest is February, when the night usually falls to 65°F. July is the wettest, with rain on about 14 days. August afternoons run from about 76°F in Eleele to 88°F in Haena. February nights run from about 61°F in Kalaheo to 66°F in Anahola.
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.
Kauai 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 Kauai County weather
- What is the hottest temperature recorded at a Kauai County station?
- 97°F at Mahaulepu 941.1 on May 26, 2009, in the NOAA daily station records myweatherrock holds (1905 to 2026).
- What is the coldest temperature recorded at a Kauai County station?
- 40°F at Mahaulepu 941.1 on January 9, 1995.
- What is the most rain a Kauai County station has measured in one day?
- 20.55 inches at Koloa Mauka 994 on March 5, 2012.
- How many Kauai County towns have a weather page here?
- 23: 23 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 Kauai 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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