Measurements:
°C
°F
Kauai
78°F
NW 1 mph
Feels like: 82°F
Precip: 100%
World Resorts USA Kauai Weather September Weather in Kauai

Kauai Weather: September

Average Day Temperature: 83.5°F
Average Night Temperature: 79.2°F
Sea Water Temperature: 83.7°F
Number of Sunny Days: 2 days
Sunshine Hours: 11.9 - 12.6 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.5 in

Air Temperature in September, °F

Select Year: 2024 2023 2022

The highest day temperature in September 2024 was 87°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 84.3°F и 77.5°F respectivly.

Kauai Water Sea Temperature in September, °F

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Kauai was 82.6°F. The maximum and minimum values were 82.4°F and 83.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Kauai is 0.5 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 10.4 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Kauai in September is 5.4 hours.

Best Time to Visit Kauai
The most sunny months:
January 6 days
December 5 days
February 2 days
The most warm months:
September 83.5 °F
August 83.0 °F
July 82.3 °F
Warmest sea temperature:
September 83.7 °F
October 83.6 °F
August 83.0 °F
The most cold months:
February 76.0 °F
March 76.5 °F
January 77.5 °F
The most rainy months:
January 3 days
March 2 days
May 1 day
The most windy months:
July 12 mph
February 11 mph
August 11 mph

Kauai on the Weather Map

USA Resorts:
NAME
Boston +56
Chicago +64
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +44
Los Angeles +62
Maui +74
Miami +84
New York +62
San Diego +52
San Francisco +56
Sarasota +76
Tampa +78
Washington +62
24 Hours Weather Forecast
Kauai
Local time: 04:57
05 nov, tuesday
0600 78°F
NW
1 mph
0900 82°F
SW
4 mph
1200 84°F
S
7 mph
1500 82°F
S
9 mph
1800 78°F
SW
11 mph
2100 78°F
SW
10 mph
06 nov, wednesday
0000 78°F
W
9 mph
0300 76°F
W
8 mph