Kauai Vejr Prognose
Kauai weather: 21°C, light showers. Hver time forecast, 14-day outlook, UV, air quality and the best time og visit.
14-day forecast for Kauai
Maks. / Min.; Nedbør; UV
| Dag | Forhold | Maks. / Min. | Nedbør | Vind | UV |
|---|---|---|---|---|---|
| ons, sep 30 | ⛈️ Tordenvejr | 22° / 19° | 100% · 83 mm | 14 km/h | 5 |
| tor, okt 1 | 🌦️ Light showers | 23° / 19° | 100% · 15 mm | 12 km/h | 7 |
| fre, okt 2 | 🌧️ Byger | 23° / 18° | 100% · 17 mm | 10 km/h | 6 |
| lør, okt 3 | 🌦️ Light showers | 24° / 18° | 89% · 5 mm | 7 km/h | 7 |
| søn, okt 4 | 🌦️ Støvregn | 23° / 17° | 55% · 5 mm | 10 km/h | 8 |
| man, okt 5 | 🌦️ Støvregn | 24° / 17° | 94% · 3 mm | 10 km/h | 4 |
| tir, okt 6 | 🌦️ Støvregn | 21° / 17° | 85% · 13 mm | 7 km/h | 7 |
| ons, okt 7 | 🌦️ Støvregn | 22° / 17° | 89% · 6 mm | 6 km/h | 5 |
| tor, okt 8 | 🌦️ Light drizzle | 25° / 17° | 83% · 1 mm | 11 km/h | 8 |
| fre, okt 9 | 🌦️ Light drizzle | 24° / 18° | 74% · 2 mm | 10 km/h | 6 |
| lør, okt 10 | 🌦️ Støvregn | 22° / 17° | 77% · 12 mm | 11 km/h | 7 |
| søn, okt 11 | 🌦️ Light drizzle | 22° / 17° | 73% · 5 mm | 13 km/h | 4 |
| man, okt 12 | 🌧️ Heavy drizzle | 21° / 17° | 66% · 16 mm | 11 km/h | 7 |
| tir, okt 13 | 🌦️ Light showers | 22° / 17° | 84% · 30 mm | 13 km/h | 7 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 23°C against a september normal of 24°C - right on average.
The next 7 days carry about 2.7 times a normal week's rain for september (142 mm against 52 mm).
What this means for Kauai
Today is about average for september. The forecast high of 22°C is in line med the 24°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 83 mm is forecast, which is enough og soak trails and slow traffic.
Sigtbarhed is down og 0,5 km - use low beams and leave extra following distance. Vindstød og 61 km/h will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in juni og august.
The gap between the warmest and coldest month averages 4°C - an unusually even climate through the year.
What og pack, what og skip
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 61 km/h.
- Avoid swimming outside patrolled areas - waves are running at 2.1 m.
- If your dates are flexible, avoid marts, november and december - historically the least comfortable months here.
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Kauai weather - more answers
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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 Nordamerika.
What is the weather like in Kauai lige nu?
It is currently 21°C (69°F) med light showers. Luftfugtighed is 98% and wind is 9 km/h.
When is the best time og visit Kauai?
januar, september and oktober offer the most comfortable conditions in Kauai, which has a temperate climate. marts, 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 10:22 AM.
What is the nearest airport og Kauai?
The closest airports are Daniel K. Inouye International Airport (HNL), 186 km away.
What are the top things og 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.
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Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Prognose and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vejr 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 september 30, 2026 at 10:22 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
