Kailua Weather Forecast
- 69
- 79
Rain Showers
- 68
- 79
Rain Showers
- 68
- 78
Rain Showers
- 67
- 78
Rain Showers
- 67
- 76
Rain Showers
- 66
- 76
Rain Showers
Today 19 Dec Windward Haleakala
Mostly sunny with isolated Showers in the Morning, then partly sunny with scattered Showers in the afternoon. Highs around 81 near the shore to around 66 near 5000 feet. Light Winds. Chance of rain 40 percent.
Tonight 19 Dec Windward Haleakala
Mostly cloudy. Scattered Showers in the Evening, then isolated Showers after midnight. Lows around 71 near the shore to around 53 near 5000 feet. Light Winds becoming southeast up to 10 Mph after midnight. Chance of rain 50 percent.
Kailua Temperature Statistics
December Temperature
Kahului, Kahului Airport (14.9 miles)
Lowest 2 December, 2025
61 °FAverage December
74.9 °FHighest 4 December, 2025
87.1 °F
Climate (2020–Present)
Kahului, Kahului Airport (14.9 miles)
Average Low 2020–2025
68.8 °FAverage 2020–2025
76.7 °FAverage High 2020–2025
85.5 °F