Please click on any column to get detailed information about Kauai weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
The warmest month in Kauai is september. The average daily temp is 80.2°F. The average nightly temp is 76.3°F.
Sea water temperature, °F
The warmest sea temperature usually observed in September. Average daily sea water temperature during this month is 80.4°F.
Precipitation total, in.
Number of rainy days
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
Best time for vacation in Kauai
Kauai on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Kauai
Local time: 22:31
December 22, sunday
0000
73°F
NW
4 mph
4 mph
0300
72°F
N
2 mph
2 mph
0600
72°F
NE
2 mph
2 mph
0900
75°F
S
2 mph
2 mph
1200
77°F
S
6 mph
6 mph
1500
75°F
SW
6 mph
6 mph
1800
73°F
SW
6 mph
6 mph
2100
70°F
SW
6 mph
6 mph
