Niihau Weather Forecast
- 75
- 86
Partly Sunny
- 75
- 85
Partly Sunny
- 75
- 85
Rain Showers
- 75
- 85
Rain Showers
- 75
- 85
Rain Showers
- 75
- 85
Partly Sunny
Today 23 Sep Niihau
Mostly sunny. Highs 81 to 87. East Winds up to 10 Mph shifting to the northeast in the afternoon.
Tonight 23 Sep Niihau
Partly cloudy in the evening then becoming mostly cloudy. Lows 72 to 78. Northeast Winds 10 to 15 Mph.
Niihau Temperature Statistics
September Temperature
Kekaha, Pacific Missile Test Facility Barking Sands (25.5 miles)
Lowest 15 September, 2026
71.1 °FAverage September
79.9 °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