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Kailua Kona — weather in September, water temperature

28.3°C Daytime temperatures 24.9°C Night temperatures 18 Sunny days 12-12.5 Sun (hours) 3 Rainy days 68.4 mm Precipitation 27.5°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 32.7°C — 14 September 2016.
The maximum night temperature 27°C — 5 September 2018.
The minimum daily temperature 21°C — 1 September 2020.
The minimum night temperature 21.5°C — 2 September 2020.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 29.6 °C — 9 September 2015. The coldest water 26.7 °C — 29 September 2020.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 68.4 mm — September. Minimum precipitation 21.6 mm — January.
Wind speed, km / h
Maximum wind speed 11.5 km / h — May. Minimum wind speed 9.4 km / h — November.
Number of hours of sunshine
The maximum number of hours of sunshine per day 9.4 h. — February. The minimum number of hours of sunshine per day 8.6 h. — August.
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