The Waialua plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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10.48 inches of rain fell in two days, the most for this week of the year since records began in 1983. The next wettest, 3.43 inches, fell in 2002.
Waialua’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 1,280 ft, a difference of 1,280 ft: steep hill country. Open water lies within three miles. The highest named summit within 15 miles is Kaʻala, about 3,990 ft, 5 miles south-southwest.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR.
Waialua has a tropical rainforest climate. Summer afternoons average 86° in August; winter nights fall to about 62° in January. About 52 inches of rain fall in a normal year.
On November 14 Waialua normally reaches 82° and falls to 67°. The record high is 88°, in 2019; the record low 59°, in 1992. The most rain on this date, 7.10 in, fell in 1996.
Normals 1991–2020 and records since 1983 at Waimea Valley 892.2, 6 miles northeast. NOAA, through RCC-ACIS.
