Kauai Weather Forecast
Kauai weather: 76°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Kauai
Derived from the current forecast window - not an official warning.
Peak gusts of 25 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,5 in, 3,8 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Kauai
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Aug 24 | 🌧️ Heavy drizzle | 76° / 67° | 98% · 0,3 in | 6 mph | 8 |
| Tue, Aug 25 | 🌦️ Light drizzle | 77° / 66° | 67% · 0,2 in | 7 mph | 7 |
| Wed, Aug 26 | 🌦️ Drizzle | 74° / 65° | 83% · 0,3 in | 6 mph | 9 |
| Thu, Aug 27 | 🌦️ Drizzle | 75° / 63° | 64% · 0,1 in | 7 mph | 9 |
| Fri, Aug 28 | 🌦️ Drizzle | 74° / 63° | 89% · 0,2 in | 6 mph | 9 |
| Sat, Aug 29 | 🌧️ Heavy drizzle | 73° / 63° | 80% · 0,5 in | 6 mph | 8 |
| Sun, Aug 30 | 🌦️ Drizzle | 72° / 63° | 93% · 0,3 in | 6 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 74° / 64° | 85% · 0,2 in | 6 mph | 6 |
| Tue, Sep 1 | 🌦️ Light drizzle | 77° / 64° | 78% · 0,2 in | 5 mph | 8 |
| Wed, Sep 2 | 🌦️ Light drizzle | 79° / 64° | 82% · 0,0 in | 6 mph | 8 |
| Thu, Sep 3 | 🌦️ Light drizzle | 78° / 63° | 84% · 0,0 in | 5 mph | 8 |
| Fri, Sep 4 | 🌦️ Light drizzle | 75° / 62° | 73% · 0,1 in | 6 mph | 4 |
| Sat, Sep 5 | 🌧️ Heavy drizzle | 72° / 64° | 69% · 0,5 in | 6 mph | 1 |
| Sun, Sep 6 | 🌦️ Drizzle | 72° / 63° | 79% · 0,4 in | 6 mph | 1 |
| Mon, Sep 7 | 🌦️ Light drizzle | 76° / 63° | 67% · 0,2 in | 5 mph | 3 |
| Tue, Sep 8 | 🌦️ Light showers | 74° / 65° | 58% · 0,4 in | 5 mph | 5 |
What this means for Kauai
Today is about average for August. The forecast high of 76°F is in line with the 75°F typical for this month.
A 98% chance means rain is expected over most of the area. Plan indoor alternatives.
Visibility is down to 0,1 mi - use low beams and leave extra following distance. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 39°F - an unusually even climate through the year.
See the Kauai forecast by time range
Kauai weather - more answers
Explore Kauai
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Frequently asked questions
Where is Kauai?
Kauai is an island in Hawaii. Its coordinates are 22.0964, -159.5261. It lies in North America.
What is the weather like in Kauai right now?
It is currently 76°F (24°C) with overcast. Humidity is 76% and wind is 6 mph.
When is the best time to visit Kauai?
August offer the most comfortable conditions in Kauai, which has a temperate climate. March, November and December are usually the hardest months for outdoor plans.
What time zone is Kauai in?
Kauai observes Pacific/Honolulu (UTC-10:00). The local time is 3:03 PM.
What is the nearest airport to Kauai?
The closest airports are Daniel K. Inouye International Airport (HNL), 116 mi away.
What are the top things to do in Kauai?
Popular options include Hanalei Bay, Oahu, Pearl Harbor National Memorial, Waikiki Beach, Maui and Haleakala National Park.
What places are in Kauai?
Kauai covers 1 places in this atlas, including Hanalei Bay.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 3:03 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
