Measurements:
°C
°F
CURRENT WEATHER
05:07
Kahului
80°F
W 12 mph
Feels like: 84°F
Precip: 19%
World Resorts USA Kahului Weather

7 Day Weather Forecast

09.15
tue
DAY
82°F
SW 20 mph
precip
23%
NIGHT
80°F
W 16 mph
precip
24%
09.16
wed
DAY
82°F
W 16 mph
precip
36%
NIGHT
80°F
W 16 mph
precip
37%
09.17
thu
DAY
82°F
W 25 mph
precip
29%
NIGHT
80°F
W 19 mph
precip
18%
09.18
fri
DAY
84°F
W 25 mph
precip
7%
NIGHT
80°F
W 16 mph
precip
19%
09.19
sat
DAY
82°F
W 23 mph
precip
22%
NIGHT
80°F
W 17 mph
precip
24%
09.20
sun
DAY
80°F
W 21 mph
precip
16%
NIGHT
80°F
W 17 mph
precip
12%
09.21
mon
DAY
80°F
W 17 mph
precip
16%
NIGHT
80°F
W 14 mph
precip
21%

Kahului Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Kahului was 26.8°F. The maximum and minimum values were 26.5°F and 27.3°F respectively.

Kahului on the Weather Map

Best Time to Visit Kahului
The most sunny months:
January 19 days
September 19 days
June 18 days
The most warm months:
September 86.2 °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
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