weatherbycounty

Kauai County Climate

JanFebMarAprMayJunJulAugSepOctNovDec75.6°AVG °F

Avg Annual Temp

75.6°F

Annual Precip

21.4"

Annual Snowfall

Extreme Heat Days

Monthly Temperature

JFMAMJJASOND

Precipitation Calendar

Dry
Wet
1.9"
2.1"
2.5"
1.0"
1.6"
1.4"
1.3"
1.6"
1.5"
2.0"
1.9"
2.6"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring72°76°5.2"Summer78°79°4.2"Fall76°79°5.4"Winter71°73°6.6"20°40°60°80°100°

National Comparison

Warmer than 100% of US counties
Wetter than 16% of US counties
More seasonal variation than 0% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Kauai County

Climate Verdict

Climate data is currently unavailable for this county.

Seasonal Breakdown

Seasonal temperature data is currently unavailable for Kauai County.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Kauai County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Climate comparison data for neighboring counties in Hawaii is currently being compiled.

Frequently Asked Questions

What is the average temperature in Kauai County?
The average annual temperature in Kauai County, HI is 75.6°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Kauai County get?
Kauai County receives an average of 21.4 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Kauai County get in summer?
The average summer temperature (June-August) in Kauai County is 78.7°F.
How cold are winters in Kauai County?
The average winter temperature (December-February) in Kauai County is 72.2°F. January, typically the coldest month, averages 71.7°F.

Track your own weather in Kauai County

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Data sources: ERA5 Reanalysis (modeled) via Open-Meteo (gap-filled where station data unavailable).. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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