Measurements:
°C
°F
Kahului
80°F
W 14 mph
Feels like: 84°F
Precip: 15%
World Resorts USA Kahului Weather September Weather in Kahului

Kahului Weather: September

Average Day Temperature: 85.9°F
Average Night Temperature: 79.2°F
Sea Water Temperature: 83.5°F
Number of Sunny Days: 18 days
Sunshine Hours: 12.0 - 12.5 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.6 in

Air Temperature in September, °F

Select Year: 2026 2025 2024

The highest day temperature in September 2026 was 88°F. The lowest night temperature was 77°F. The average values for day and night temperatures during September were 80.9°F и 79.2°F respectivly.

Kahului Water Sea Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Kahului was 83.8°F. The maximum and minimum values were 83.0°F and 84.6°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Kahului is 0.6 in.

Wind Speed in September, mph

The average wind speed in September is 12.0 mph. This value is relatively stable throughout the year.

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 Kahului in September is 8.6 hours.

Best Time to Visit Kahului
The most sunny months:
January 19 days
June 18 days
September 18 days
The most warm months:
September 85.9 °F
August 85.8 °F
July 85.4 °F
Warmest sea temperature:
September 83.5 °F
October 83.5 °F
August 82.9 °F
The most cold months:
February 78.8 °F
January 79.2 °F
March 79.3 °F
The most rainy months:
March 2 days
February 2 days
August 1 day
The most windy months:
July 12 mph
June 12 mph
November 12 mph

Kahului on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +60
Hawaii +82
Houston +84
Las Vegas +92
Los Angeles +102
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Kahului
Local time: 14:56
05 oct, monday
1500 80°F
W
14 mph
1800 80°F
W
14 mph
2100 80°F
W
12 mph
06 oct, tuesday
0000 78°F
W
13 mph
0300 78°F
W
12 mph
0600 76°F
W
11 mph
0900 80°F
W
12 mph
1200 80°F
SW
15 mph