Kailua-Kona, Hawaii weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: April – November
What is the weather like in Kailua-Kona, Hawaii in October?
In October, Kailua-Kona, Hawaii is warm: daytime highs average 25 °C, and nights cool down to about 20 °C. The sea averages 27.1 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It rains often – on about 26 days, adding up to 180 mm. All in all, October is a good month for a holiday in Kailua-Kona, Hawaii.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 76 | 75 | 70 |
| Day | 25° | 25° | 24° |
| Night | 20° | 20° | 19° |
| Sea | 27° | 27° | 27° |
| Sun | 8 h | 8 h | 7 h |
| Rain days | 29 | 26 | 21 |
More details for October
- Daylight
- 11 h 44 min06:18 – 18:01
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 14 daysdew point 18 °C or moreAll months
- Wind
- 9 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−10Pacific/Honolulu
How the score comes together
- Temperatureweight 35 %98 %
- Seaweight 25 %100 %
- Sunshineweight 20 %80 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Kailua-Kona, Hawaii in October: quick answers
Is Kailua-Kona, Hawaii hot in October?
Warm rather than hot: in October, daytime highs in Kailua-Kona, Hawaii average 25 °C and nights cool to about 20 °C.
Can you swim in Kailua-Kona, Hawaii in October?
Yes. In October the sea averages 27.1 °C – lovely and warm for swimming.
Does it rain much in Kailua-Kona, Hawaii in October?
It rains often – on about 26 days, adding up to 180 mm.
Kailua-Kona, Hawaii month by month
The whole year in Kailua-Kona, HawaiiAll destinations: USAHawaii weather in OctoberWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences