Black Sand Beach (Oneuli Beach) Weather Forecast
- 75
- 85
Partly Sunny
- 75
- 84
Mostly Sunny
- 74
- 84
Mostly Sunny
- 74
- 84
Mostly Sunny
- 74
- 83
Mostly Sunny
- 75
- 83
Mostly Sunny
Today 17 Aug South Maui/Upcountry
Mostly sunny. Isolated Showers in the afternoon. Highs around 88 near the shore to around 76 near 4000 feet. Northeast Winds up to 10 Mph. Chance of rain 20 percent.
Tonight 17 Aug South Maui/Upcountry
Partly cloudy with isolated Showers. Lows around 73 near the shore to around 57 near 4000 feet. East Winds up to 10 Mph. Chance of rain 20 percent.
Black Sand Beach (Oneuli Beach) Temperature Statistics
August Temperature
Kahului, Kahului Airport (17.4 miles)
Lowest 10 August, 2025
67.6 °FAverage August
80.7 °FHighest 7 August, 2025
91.7 °F
Climate (2020–Present)
Kahului, Kahului Airport (17.4 miles)
Average Low 2020–2025
68.9 °FAverage 2020–2025
76.9 °FAverage High 2020–2025
85.7 °F