Kihei Weather in September
With daytime temperatures of 30°C (86°F) and nighttime lows of 23°C (73°F), September in Kihei brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in Kihei in September
This month experiences about 8 days of rain according to historical data, averaging 29 mm (1.1 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Kihei in September
If you're visiting Kihei in September, expect perfect temperatures with highs of 30°C (86°F) and overnight lows of 23°C (73°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows around 23°C (73°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Kihei in September
Expect a lot of sunshine this month, with about 271 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Kihei in September
Wind speeds average 5 m/s (10 knots) during September. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in September
The water is 27°C (81°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, June, October, November and December typically offer the best weather for Kihei.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Kihei's climate page.
Kihei Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
30°C (86°F)
Water Temperature
27°C (81°F) *
Chance of Rain
28%
Precipitation
29 mm (1.1 in)
Rainy days
8 days
Humidity
70% *
Windspeed
5 m/s (10 knots) *
Sunshine
271 hours *
Percentage Sunshine
74% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kihei typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Kihei in September
Browse day-by-day weather records for Kihei spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kihei historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Kihei.
- The hottest September day on record in Kihei reached 35°C (95°F) (September 19, 1995).
- Kihei experienced its chilliest September day on September 25, 1996, reaching only 26°C (79°F).
- Nighttime temperatures dropped to 16°C (61°F) on September 25, 2011, marking the coldest September night on record.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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What to Wear in Kihei in September
Warm but pleasant conditions in Kihei in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Kihei in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Kihei's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Kihei climate overview or explore weather in the United States of America.
