Kapolei
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Kapolei Weather in September

September in Kapolei typically sees daytime highs of 28°C (82°F) and nighttime lows of 25°C (77°F). Expect some rainfall during the month.

Rainfall in Kapolei in September

This month experiences about 9 days of rain according to historical data, averaging 19 mm (0.7 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Kapolei in September

September is one of the better months to visit Kapolei. Expect 28°C (82°F) during the day and 25°C (77°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. On average, it is the warmest month of the year.

Sunshine in Kapolei in September

The days are predominantly sunny, with an estimated total of around 279 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Kapolei in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in September

The water temperature is 27°C (81°F), which most people find very comfortable. A good month for swimming and water sports.

If you're interested in exploring other destinations, our weather planner can help you discover additional travel options worldwide.

Kapolei Temperature in September

Min Temperature
25°C (77°F)
Max Temperature
28°C (82°F)
Water Temperature
27°C (81°F) *
Chance of Rain
30%
Precipitation
19 mm (0.7 in)
Rainy days
9 days
Humidity
66% *
Windspeed
4 m/s (8 knots) *
Sunshine
279 hours *
Percentage Sunshine
76% *
* Data from: Honolulu, the United States of America (15 KM, 9 Miles).

Kapolei Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Kapolei - and find the best time to visit.

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
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Kapolei in September

Warm but pleasant conditions in Kapolei 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. Dry conditions mean you won't need to worry about rain protection. The water temperature sits at about 27°C (81°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Kapolei in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Kapolei 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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