Weather Forecast for Kauai
Hawaii, United States of America
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Current Weather - Kauai: 21°C
Current Weather - Kauai: 21°C
Hawaii, United States of America
Partly cloudy
Feels like 21°C
Wind
20 km/h E
Humidity
88%
Pressure
1016 mb
UV Index
0
Visibility
16 km
Moderate rain
Thursday, January 01, 2026
High
24°C
Low
23°C
Rain Chance
93%
Hourly Forecast
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
Day Statistics
Maximum Wind
29 km/h
Humidity
76%
Precipitation
9 mm
UV Index
1
Visibility
10 km
Rain Chance
93%
Snow Chance
0%
Sun & Moon
Sunrise
07:17 AM
Sunset
06:06 PM
Moonrise
04:30 PM
Moonset
05:40 AM
Moon Phase
Waxing Gibbous
Moon Illumination
91%
Air Quality
PM2.5
9.5
μg/m³
PM10
14.5
μg/m³
NO₂
1
μg/m³
O₃
77.9
μg/m³
SO₂
1.1
μg/m³
CO
121.4
μg/m³
Patchy rain nearby
Friday, January 02, 2026
High
23°C
Low
22°C
Rain Chance
88%
Hourly Forecast
23°C
23°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
22°C
22°C
Day Statistics
Maximum Wind
27 km/h
Humidity
77%
Precipitation
3 mm
UV Index
1
Visibility
10 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
07:17 AM
Sunset
06:06 PM
Moonrise
05:39 PM
Moonset
06:47 AM
Moon Phase
Waxing Gibbous
Moon Illumination
97%
Air Quality
PM2.5
8.8
μg/m³
PM10
14.1
μg/m³
NO₂
1
μg/m³
O₃
80.8
μg/m³
SO₂
1
μg/m³
CO
125.7
μg/m³
Patchy rain nearby
Saturday, January 03, 2026
High
23°C
Low
22°C
Rain Chance
89%
Hourly Forecast
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
Day Statistics
Maximum Wind
28 km/h
Humidity
75%
Precipitation
2 mm
UV Index
1
Visibility
10 km
Rain Chance
89%
Snow Chance
0%
Sun & Moon
Sunrise
07:17 AM
Sunset
06:07 PM
Moonrise
06:48 PM
Moonset
07:49 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
9.6
μg/m³
PM10
15.4
μg/m³
NO₂
1.1
μg/m³
O₃
89.5
μg/m³
SO₂
1
μg/m³
CO
121.1
μg/m³
Moderate rain
Sunday, January 04, 2026
High
23°C
Low
20°C
Rain Chance
79%
Hourly Forecast
23°C
23°C
23°C
23°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
21°C
23°C
23°C
20°C
Day Statistics
Maximum Wind
28 km/h
Humidity
78%
Precipitation
6 mm
UV Index
0
Visibility
9 km
Rain Chance
79%
Snow Chance
0%
Sun & Moon
Sunrise
07:18 AM
Sunset
06:07 PM
Moonrise
07:55 PM
Moonset
08:42 AM
Moon Phase
Waning Gibbous
Moon Illumination
99%
Air Quality
PM2.5
5.7
μg/m³
PM10
8.5
μg/m³
NO₂
1.5
μg/m³
O₃
82.5
μg/m³
SO₂
1.2
μg/m³
CO
118.1
μg/m³
Moderate rain
Monday, January 05, 2026
High
23°C
Low
21°C
Rain Chance
88%
Hourly Forecast
23°C
23°C
21°C
21°C
21°C
21°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
22°C
Day Statistics
Maximum Wind
34 km/h
Humidity
77%
Precipitation
5 mm
UV Index
0
Visibility
10 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
07:18 AM
Sunset
06:08 PM
Moonrise
08:58 PM
Moonset
09:27 AM
Moon Phase
Waning Gibbous
Moon Illumination
96%
Air Quality
PM2.5
4.4
μg/m³
PM10
6.2
μg/m³
NO₂
1.5
μg/m³
O₃
75.9
μg/m³
SO₂
1.2
μg/m³
CO
116.8
μg/m³
Patchy rain nearby
Tuesday, January 06, 2026
High
23°C
Low
22°C
Rain Chance
88%
Hourly Forecast
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
Day Statistics
Maximum Wind
30 km/h
Humidity
73%
Precipitation
3 mm
UV Index
5
Visibility
10 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
07:18 AM
Sunset
06:09 PM
Moonrise
09:57 PM
Moonset
10:06 AM
Moon Phase
Waning Gibbous
Moon Illumination
91%
Patchy rain nearby
Wednesday, January 07, 2026
High
23°C
Low
22°C
Rain Chance
81%
Hourly Forecast
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
23°C
22°C
22°C
22°C
22°C
Day Statistics
Maximum Wind
23 km/h
Humidity
74%
Precipitation
1 mm
UV Index
5
Visibility
10 km
Rain Chance
81%
Snow Chance
0%
Sun & Moon
Sunrise
07:18 AM
Sunset
06:09 PM
Moonrise
10:51 PM
Moonset
10:41 AM
Moon Phase
Waning Gibbous
Moon Illumination
84%
Weather Alerts
High Surf Advisory issued December 31 at 9:09AM HST until December 31 at 6:00PM HST by NWS Honolulu HI
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI AND THE BIG ISLAND... Overlapping, medium-period northwest (320 degree) and north- northwest (340-350 degree) swells will maintain advisory-level surf, with little change through this evening. Surf is expected to decline through Friday. * WHAT...Large breaking waves of 10 to 16 feet along north facing shores, and 8 to 12 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, Molokai, and north facing shores of Maui. * WHEN...Until 6 PM HST this evening. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
Heed all advice from ocean safety officials. When in doubt, don't go out.
Coastal Flood Statement issued December 31 at 3:09PM HST until January 3 at 6:00AM HST by NWS Honolulu HI
...MINOR COASTAL FLOODING DURING HIGH TIDES... .Peak monthly high tides combined with water levels running higher than predicted will lead to minor flooding along the shoreline and in low-lying coastal areas. Coastal flooding is most likely around the daily peak high tides, which will occur a couple hours after midnight. * WHAT...Isolated minor coastal flooding. * WHERE...Vulnerable low-lying coastal roadways, docks, boat ramps, and other coastal infrastructure of all islands. * WHEN...Through late Friday night. * IMPACTS...Flooding of beaches that are normally dry, minor coastal erosion, and saltwater inundation.
Avoid driving through flooded roadways. If you are forced to drive through salt water, be sure to rinse your vehicle with fresh water. Move electronics, vehicles or other valuables to higher ground. Monitor vessels to ensure mooring lines don't get too tight and watch out for overwash around boat ramps. Secure canoes or other watercraft stowed on beaches.
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