Niihau Weather Forecast
- 75
- 86
Rain Showers
- 74
- 86
Rain Showers
- 75
- 86
Rain Showers
- 74
- 86
Partly Sunny
- 74
- 86
Partly Sunny
- 75
- 86
Mostly Sunny
Today 16 Sep Niihau
Sunny. Highs 81 to 88. East Winds up to 10 Mph shifting to the northeast in the afternoon.
Tonight 16 Sep Niihau
Partly cloudy. Breezy. Isolated Showers after midnight. Lows 72 to 78. Northeast Winds 10 to 20 Mph. Chance of rain 20 percent.
Niihau Temperature Statistics
September Temperature
Kekaha, Pacific Missile Test Facility Barking Sands (25.5 miles)
Lowest 14 September, 2026
72 °FAverage September
79.4 °FHighest 3 September, 2026
88 °F
Climate (2021–2026)
Kekaha, Pacific Missile Test Facility Barking Sands (25.5 miles)
Average Low 2021–2026
70 °FAverage 2021–2026
76.7 °FAverage High 2021–2026
83 °F