Temperature
Warm by day, warm at night.
82°Ftypical Aug high
Kauai
United States · North America
Kauai is most comfortable around January and February. Typical daytime highs run about 75-82°F year-round. Humidity is noticeable in some months.
Best time to go
12 mo · Typical year
Temperature range
68°F to 82°F
Rain
14 days/mo
Sunshine
6.7 h/day
Humidity feel
Sometimes humid
When to visit
Month-by-month fit
Precipitation
Frequent light showers across the month.
48%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine alternates with cloudier spells.
8 hAug sunshine
Heat & humidity by month
The air feels humid this month.
HumidAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
80°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Predominantly clear skies.
61%Aug clear sky
ClearCloud cover
Similar
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Want a side-by-side climate view? Compare Kauai with Big Island.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 29, 2026
Data & methodology