Kauai County Weather Forecast
Kauai County weather: 69°F, light showers. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Kauai County is a county in Hawaii. Kauai County is a county in the United States. It has a population of about 74.000.
Right now it is 69°F (20°C) in Kauai County with light showers. It feels like 74°F. Today runs from 67°F to 74°F. Chance of precipitation is 88%. Sightseeing conditions score 5.2/10 - marginal.
The best time to visit Kauai County is August. The climate is temperate. March, November and December tend to be the least comfortable months. August is the warmest month with average highs near 75°F, while February is the coldest with lows near 55°F.
The closest major airport is Daniel K. Inouye International Airport (HNL), about 116 mi away. Nearby highlights include Kauai, Hanalei Bay, Oahu and Pearl Harbor National Memorial.
In plain terms. Today is about average for August. The forecast high of 74°F is in line with the 75°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Kauai County today at 9.7/10. 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.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Kauai County right now
Source: Open-Meteo. Updated 8:19 AM, Aug 24 local time.
See the Kauai County forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Kauai County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌦️ Light showers | 74° / 67° | 88% · 0,7 in | 7 mph | 9 |
| Mon, Aug 24 | 🌦️ Light showers | 74° / 67° | 99% · 0,5 in | 6 mph | 9 |
| Tue, Aug 25 | 🌦️ Drizzle | 77° / 66° | 88% · 0,3 in | 7 mph | 7 |
| Wed, Aug 26 | 🌦️ Drizzle | 76° / 65° | 59% · 0,2 in | 6 mph | 9 |
| Thu, Aug 27 | 🌦️ Drizzle | 73° / 63° | 77% · 0,3 in | 5 mph | 6 |
| Fri, Aug 28 | 🌦️ Drizzle | 72° / 63° | 88% · 0,4 in | 6 mph | 9 |
| Sat, Aug 29 | 🌦️ Drizzle | 74° / 63° | 77% · 0,4 in | 8 mph | 9 |
| Sun, Aug 30 | 🌦️ Drizzle | 74° / 63° | 80% · 0,3 in | 6 mph | 5 |
| Mon, Aug 31 | 🌦️ Drizzle | 76° / 63° | 95% · 0,2 in | 5 mph | 9 |
| Tue, Sep 1 | 🌧️ Heavy drizzle | 72° / 66° | 87% · 0,4 in | 5 mph | 6 |
| Wed, Sep 2 | 🌧️ Heavy drizzle | 71° / 65° | 90% · 0,6 in | 5 mph | 8 |
| Thu, Sep 3 | 🌦️ Drizzle | 73° / 63° | 82% · 0,2 in | 6 mph | 7 |
| Fri, Sep 4 | 🌦️ Drizzle | 68° / 63° | 69% · 0,4 in | 4 mph | 6 |
| Sat, Sep 5 | 🌦️ Light showers | 69° / 63° | 71% · 0,7 in | 5 mph | 9 |
| Sun, Sep 6 | 🌧️ Heavy drizzle | 74° / 65° | 82% · 0,5 in | 6 mph | 7 |
| Mon, Sep 7 | 🌦️ Drizzle | 71° / 63° | 56% · 0,1 in | 7 mph | 4 |
Climate in Kauai County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 69° | 56° | 7,6 in | ★★★☆☆ |
| February | 68° | 55° | 9,2 in | ★★★☆☆ |
| March | 69° | 58° | 12,6 in | ★★☆☆☆ |
| April | 70° | 59° | 17,3 in | ★★★☆☆ |
| May | 70° | 60° | 13,5 in | ★★★☆☆ |
| June | 72° | 62° | 10,1 in | ★★★☆☆ |
| July | 73° | 62° | 11,7 in | ★★★☆☆ |
| August | 75° | 63° | 5,2 in | ★★★★☆ |
| September | 74° | 63° | 7,7 in | ★★★☆☆ |
| October | 74° | 62° | 6,9 in | ★★★☆☆ |
| November | 71° | 60° | 9,8 in | ★★☆☆☆ |
| December | 70° | 58° | 9,6 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Weather map for Kauai County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Kauai County
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Kauai County
Go in August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: March, November and December - expect the least comfortable mix of heat, cold or rain.
Explore Kauai County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Kauai County?
Kauai County is a county in Hawaii. Its coordinates are 22.0964, -159.5261. It lies in North America.
What is the weather like in Kauai County right now?
It is currently 69°F (20°C) with light showers. Humidity is 95% and wind is 3 mph.
When is the best time to visit Kauai County?
August offer the most comfortable conditions in Kauai County, which has a temperate climate. March, November and December are usually the hardest months for outdoor plans.
What time zone is Kauai County in?
Kauai County observes Pacific/Honolulu (UTC-10:00). The local time is 8:19 AM.
How many people live in Kauai County?
Kauai County has a population of approximately 74.000.
What is the nearest airport to Kauai County?
The closest airports are Daniel K. Inouye International Airport (HNL), 116 mi away.
What are the top things to do in Kauai County?
Popular options include Kauai, Hanalei Bay, Oahu, Pearl Harbor National Memorial, Waikiki Beach and Maui.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - 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 8:19 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
