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Kona International Airport (HI)
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Weather in Kona International Airport, Hawaii for September 2026

Your guide to Kona International Airport weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Kona International Airport has been nearly identical to the historical average, with a temperature of 28.3 °F (showing only a slight deviation of 0 °F).

  • In general, the average temperature in Kona International Airport at the beginning of September is 28 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 28 °F by the end of September.

    • Rain 🌧️

  • Kona International Airport in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 85.1 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/23°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Kona International Airport Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
29°
2
Moderate rain at times
29°
3
Patchy rain possible
28°
4
Patchy rain possible
27°
5
Patchy rain possible
27°
6
Patchy rain possible
28°
7
Moderate or heavy rain shower
28°
8
Patchy rain possible
29°
9
Moderate rain at times
27°
10
Moderate or heavy rain shower
27°
11
Overcast
27°
12
Overcast
27°
13
Overcast
28°
14
Overcast
27°
15
Patchy rain possible
29°
16
Sunny
31°
17
Moderate rain at times
30°
18
Moderate or heavy rain shower
29°
19
Overcast
29°
20
Overcast
28°
21
Overcast
29°
22
Overcast
29°
23
Moderate or heavy rain shower
29°
24
Moderate or heavy rain shower
28°
25
Patchy rain possible
28°
26
Patchy rain possible
29°
27
Patchy rain possible
30°
28
Moderate or heavy rain shower
27°
29
Overcast
28°
30
Patchy rain possible
26°

Temperatures trend during September in Kona International Airport

See the weather trend as well as the moving average line

September weather in Kona International Airport day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Overcast
Overcast
 29° /22° 0.2 mm 13
Sept. 2 Moderate rain at times
Moderate rain at times
 29° /23° 1.6 mm 10
Sept. 3 Patchy rain possible
Patchy rain possible
 28° /24° 1.5 mm 5
Sept. 4 Patchy rain possible
Patchy rain possible
 27° /23° 0.1 mm 9
Sept. 5 Patchy rain possible
Patchy rain possible
 27° /23° 0.2 mm 9
Sept. 6 Patchy rain possible
Patchy rain possible
 28° /23° 7.2 mm 2
Sept. 7 Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /23° 6.9 mm 5
Sept. 8 Patchy rain possible
Patchy rain possible
 29° /24° 0.5 mm 4
Sept. 9 Moderate rain at times
Moderate rain at times
 27° /24° 2 mm 7
Sept. 10 Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /23° 6.9 mm 3
Sept. 11 Overcast
Overcast
 27° /23° 0.5 mm 5
Sept. 12 Overcast
Overcast
 27° /22° 0.1 mm 6
Sept. 13 Overcast
Overcast
 28° /22° 0.2 mm 7
Sept. 14 Overcast
Overcast
 27° /22° 0 mm 12
Sept. 15 Patchy rain possible
Patchy rain possible
 29° /23° 0.5 mm 12
Sept. 16 Sunny
Sunny
 31° /23° 0 mm 12
Sept. 17 Moderate rain at times
Moderate rain at times
 30° /24° 3.1 mm 11
Sept. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /24° 17.9 mm 3
Sept. 19 Overcast
Overcast
 29° /24° 0 mm 4
Sept. 20 Overcast
Overcast
 28° /24° 0.1 mm 3
Sept. 21 Overcast
Overcast
 29° /23° 0 mm 4
Sept. 22 Overcast
Overcast
 29° /23° 0 mm 10
Sept. 23 Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /24° 8.7 mm 2
Sept. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /23° 9.2 mm 2
Sept. 25 Patchy rain possible
Patchy rain possible
 28° /24° 0.3 mm 2
Sept. 26 Patchy rain possible
Patchy rain possible
 29° /24° 0.9 mm 2
Sept. 27 Patchy rain possible
Patchy rain possible
 30° /24° 2.5 mm 3
Sept. 28 Moderate or heavy rain shower
Moderate or heavy rain shower
 27° /23° 13.7 mm 4
Sept. 29 Overcast
Overcast
 28° /22° 0.1 mm 10
Sept. 30 Patchy rain possible
Patchy rain possible
 26° /23° 0.5 mm 11.1
Next
Important Notice
Our weather forecast for Kona International Airport in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kona International Airport forecast closer to your planned date for the most up-to-date weather information.
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Kona International Airport in September - FAQ

What are the expected maximum and minimum temperatures in Kona International Airport during September?
During September, expect a variety of temperatures with highs around 28° and lows near 23°, suitable for diverse activities and preferences.

How much rainfall should be expected in Kona International Airport during September?
Moderate rainfall is anticipated in Kona International Airport during September, with a total of 85.1 mm spread over approximately 17 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Kona International Airport during September?
The average wind speed in Kona International Airport during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Kona International Airport

Explore the daily rainfall trends and prepare for Kona International Airports September weather 💧
Typically, Kona International Airport has 17 rainy days in September with a total of 85.1 mm of rainfall.

UV exposure in Kona International Airport during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Kona International Airport?

Get accurate weather forecasts for Kona International Airport, located at latitude 19.739 and longitude -156.046. Stay updated with localized weather information tailored for Kona International Airport.

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