Temperature
Warm by day, warm at night.
82°Ftypical August high
Typical range
August climate
August in Kauai
United States · North America
Warm days and some sun. Hurricane risk and humid air are the main drawbacks.
Good overall
Daytime high
82°F
Lows around 74°F
Rain
Rainy spells
Sun
8 h/day
Air feel
Humid
Sea temp
80°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent, but usually comes in brief, on-and-off spells. About 15 wet days this month.
48%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
8 hAugust sunshine
Heat & humidity by month
Warm days, with humid periods.
96%August Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In August, afternoons feel about 85° and nights feel near 80°.
ComfortableWarmHotNight hours
Clear sky
Mostly clear skies this month.
61%August Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in August.
8 mphAugust Light breeze
Sea temperature
80°FAugust sea temp
More detailIncludes daypart comfort
Typical August day
August late afternoons are around 81°F, easing to about 78°F in early evening.
Avg temp Typical range
Morning79°F
Feels 82°F
Rain32%
Cloud46%
Humid airVery high
Sun intensityModerate
Midday82°F
Feels 84°F
Rain36%
Cloud55%
Humid airVery high
Sun intensityStrong
Late afternoon81°F
Feels 84°F
Rain37%
Cloud54%
Humid airVery high
Sun intensityStrong
Early evening78°F
Feels 81°F
Rain19%
Cloud41%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 76 | 68 | 2.6 | 10 | 6.1 | 80 | 76 |
| Feb | 75 | 68 | 2.3 | 10 | 5.8 | 79 | 76 |
| Mar | 76 | 68 | 3.4 | 13 | 5.7 | 79 | 76 |
| Apr | 77 | 69 | 2.1 | 15 | 6.3 | 80 | 76 |
| May | 79 | 71 | 2.4 | 15 | 7.6 | 79 | 77 |
| Jun | 80 | 73 | 2.2 | 15 | 7.9 | 79 | 79 |
| Jul | 81 | 74 | 2.2 | 16 | 8.1 | 79 | 79 |
| Aug | 82 | 74 | 2.3 | 15 | 8.0 | 79 | 80 |
| Sep | 82 | 74 | 2.2 | 16 | 7.6 | 79 | 81 |
| Oct | 81 | 74 | 2.8 | 16 | 6.0 | 80 | 80 |
| Nov | 79 | 72 | 2.8 | 14 | 5.4 | 81 | 79 |
| Dec | 77 | 70 | 3.4 | 13 | 5.8 | 81 | 77 |
Similar climates
Similar
Similar travel styleBig IslandUnited StatesSimilar travel styleHuatulcoMexicoSimilar travel styleNassauBahamasSimilar travel styleBridgetownBarbados
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.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 29, 2026
Data & methodology