World Resorts USA Kauai

Kauai Monthly Weather Averages

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.

June is the month with least precipitations during the year. The average precipitation totals for this month is 0.5 in. The month with most precipitation total is March.

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

Sunniest months:
January 6 days
December 5 days
February 2 days
Warmest months:
September 80.2 °F
August 79.7 °F
July 79.1 °F
Warmest sea temp:
September 80.4 °F
October 80.3 °F
August 79.7 °F
Coldest months:
February 73.4 °F
March 73.9 °F
January 74.8 °F
Rainiest months:
January 3 days
March 2 days
May 1 day
Windiest months:
July 11.9 mph
February 11.1 mph
August 10.9 mph

Kauai on a weather map

Kauai
+73°F
NW 6 mph
Feels like: +77°F
Precip.: 70%
Places in USA:
Name
°F
+46°F
+50°F
+75°F
+75°F
+45°F
+57°F
+75°F
+70°F
+46°F
+54°F
+55°F
+70°F
+68°F
+66°F
+34°F
24 Hours Forecast
Kauai
Local time: 08:24
November 21, thursday
0900
73°F
NW
6 mph
1200
77°F
W
9 mph
1500
75°F
W
11 mph
1800
73°F
W
9 mph
2100
72°F
W
8 mph
November 22, friday
0000
70°F
W
7 mph
0300
70°F
NW
5 mph
0600
68°F
NW
6 mph
Units of measurement: °C / °F