Kailua in september: average Weather, Temperature and Climate
Weather in Kailua in september 2025
The weather in Kailua in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
perfect weather UV index: 7
Weather at 6am
79°F
Partly Cloudy
42% of time
36%
20%
3%
Weather at 12pm
83°F
Clear/Sunny
70% of time
20%
9%
3%
Weather at 6pm
79°F
Clear/Sunny
49% of time
28%
19%
3%
Weather at 3am
79°F
40%
29%
28%
4%
Evolution of daily average temperature and precipitation in Kailua in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Kailua in september.
The climate of Kailua in september is perfect
The weather in september in Kailua is relatively dry (with 2in of rainfall over 2 days). This is better than the previous month since in august it receives an average of 1.8in of precipitation over 2 days.
The climate good here this month. The high seasonal norm is 83°F. The minimum is 79°F. Thus, the mean temperature average in september in Kailua is 81°F. These temperatures are far removed from those records observed in Kailua in the month of september with a maximum record of 85°F in 2014 and a minimum record of 74°F in 2020. You can expect to have about 0 days with temperatures up to 86°F, or 0 of the month.
Day length in Kailua in september is 12:15. The sun rises at 06:18 and sunset is at 18:33.
With a good weather, the month of september is advisable to go in this locality.
Seasonal average climate and temperature of Kailua in september
Check below seasonal norms These datas are set from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 81°F | ||||
| Highest temperature | 83°F | ||||
| Lowest temperature | 79°F | ||||
| Highest record temperature | 85°F (2014) | ||||
| Lowest record temperature | 74°F (2020) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 81°F | ||||
| Lowest sea temperature | 79°F | ||||
| Highest sea temperature | 83°F | ||||
| Wind | |||||
| Wind speed | 24km/h | ||||
| Wind temperature | 79°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2in | ||||
| Number of days with rainfall | 2 day(s) (8%) | ||||
| Record daily rainfall | 1.4in (2018) | ||||
| Other climate data | |||||
| Humidity | 77% | ||||
| Visibility | 9.8km | ||||
| Cloud cover | 28% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:18 | ||||
| Time of sunset | 18:33 | ||||
| Length of day | 12:15 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last september?
Here is the day by day recorded weather in Kailua in september 2024:
79°F to 81°F
77°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 81°F
76°F to 81°F
74°F to 83°F
74°F to 81°F
76°F to 81°F
76°F to 83°F
77°F to 83°F
77°F to 83°F
77°F to 81°F
77°F to 81°F
77°F to 83°F
79°F to 83°F
77°F to 83°F
77°F to 81°F
77°F to 81°F
76°F to 79°F
76°F to 81°F
76°F to 81°F
77°F to 81°F
77°F to 81°F
76°F to 81°F
76°F to 83°F
77°F to 83°F
76°F to 81°F
77°F to 83°F
Map: other cities in Hawaii in september
Cities near Kailua:
| Kaneohe in september | perfect weather |
| Waimanalo in september | perfect weather |
| Honolulu (Oahu) in september | perfect weather |
| 'Aiea in september | perfect weather |
| Pearl City in september | good weather |
| Mililani Town in september | good weather |
| Waipahu in september | good weather |
| Hau'ula in september | good weather |
| 'Ewa Beach in september | perfect weather |
| Wahiawa in september | good weather |
| La'ie in september | good weather |
| Kapolei in september | perfect weather |
Click over cities on the map for information about the weather in september.
Kailua
perfect weather
good
tolerable
bad
very bad
Weather data for Kailua in september:
Weather data for Kailua for september are derived from an average of the weather forecast since 2009 in Kailua. There is a margin of error and these forecasts are to be considered as general information only. The weather in Kailua can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Kailua.