Kapua Bay Weather Forecast
- 74
- 89
Slight Chance Thunderstorms
- 74
- 88
Mostly Cloudy
- 74
- 88
Mostly Cloudy
- 74
- 88
Partly Sunny
- 74
- 89
Rain Showers
- 74
- 89
Rain Showers
Today 18 Sep Kona
Mostly sunny with isolated Showers in the Morning, then partly sunny with scattered Showers and slight chance of Thunderstorms in the afternoon. Highs around 89 near the shore to around 73 near 5000 feet. West Winds up to 10 Mph. Chance of rain 50 percent.
Tonight 18 Sep Kona
Mostly cloudy. Isolated Showers in the evening. Lows 70 to 77 near the shore to around 60 near 5000 feet. Light Winds. Chance of rain 20 percent.
Kapua Bay Temperature Statistics
September Temperature
Kailua / Kona, Keahole Airport (42.3 miles)
Lowest 1 September, 2026
75.9 °FAverage September
82.3 °FHighest 4 September, 2026
89.1 °F
Climate (2021–2026)
Kailua / Kona, Keahole Airport (42.3 miles)
Average Low 2021–2026
73.4 °FAverage 2021–2026
79.1 °FAverage High 2021–2026
84.7 °F