Kaupuni Str at alt 374 ft near Waianae, Oahu water level

Name: Kaupuni Str at alt 374 ft near Waianae, Oahu water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Kaupuni Str, Hawaii, United States

Directions

Very high for mid-October

Water level

3.46ft Steady over the last 24 hours

Measured Oct 20, 2026, 09:45 PM HST (1 hour ago)

Flow: 15.6 cfs

History

7 days

Water level

What this means

High water at Kaupuni Str at alt 374 ft near Waianae, Oahu: the latest reading is 3.46 ft, well above normal for mid-October.

The level has held steady over the past 24 hours. The 30-day range is 3.45 ft – 3.53 ft.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 5 years of daily readings for this time of year. How to read levels

Staying safe in high water

Flood stage is only the first threshold. Above it the National Weather Service sets moderate and major flood stages, and the forecast crest tells you which of those the river is expected to reach.

Upstream gauges on the same river usually show a rise first, which is a useful early warning.

Weather at the gauge

No rain in the last 3 days.

19 Mon 84° 73° – Wind 13 mph

20 Tue 84° 71° – Wind 13 mph

21 Wed 85° 69° – Wind 11 mph

22 Thu 83° 68° 0.12 in, 56% Wind 7 mph

23 Fri 83° 65° 0.12 in, 22% Wind 7 mph

24 Sat 86° 67° – Wind 8 mph

25 Sun 80° 69° – Wind 6 mph

Forecast: Open-Meteo

Sunrise 06:31 AM Sunset 06:04 PM Daylight 11 hr, 33 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Makaha Str near Makaha, OahuRiver gauge, Makaha Str	1.26 ft	Below flood stage	−0.01 ft	2.8 mi
Kemoo 5 Reservoir, OahuReservoir	14.67 ft	Normal	+0.04 ft	7 mi
Kaukonahua Stream below Wahiawa Reservoir, OahuRiver gauge, Kaukonahua Stream	52.2 cfs	Normal	+19.8 cfs	7 mi
Wahiawa Reservoir at Spillway at Wahiawa, OahuReservoir, Wahiawa Reservoir	55.71 ft	Very low	+0.42 ft	7 mi
Wahiawa Ditch at Wahiawa, OahuCanal gauge, Wahiawa Ditch	6.3 cfs	Low	−2.9 cfs	7 mi
Kaukonahua Str at Waialua, OahuRiver gauge, Kaukonahua Str	16.85 ft	Below flood stage	+0.15 ft	7 mi
Helemano 6 Reservoir, OahuReservoir	22.41 ft	Low	−0.45 ft	8 mi
Upper Helemano Reservoir near Wahiawa, OahuReservoir, Upper Helemano Reservoir	42.76 ft	Very high	−0.08 ft	9 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Kaupuni Str at alt 374 ft near Waianae, Oahu today?

On Oct 20, 2026, 09:45 PM HST, the water level was 3.46 ft. Steady over the last 24 hours.

Is Kaupuni Str at alt 374 ft near Waianae, Oahu rising or falling?

Steady over the last 24 hours.

Is the level of Kaupuni Str at alt 374 ft near Waianae, Oahu normal?

Very high for mid-October. Compared with 5 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:16211800 (Agency page)
Coordinates: 21.46907, -158.15447 (WGS84)
Vertical datum: LMSL
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.46 ft	2026-10-21 07:45	Provisional
Flow	15.6 cfs	2026-10-21 07:45	Provisional

Download

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How to cite

U.S. Geological Survey: Kaupuni Str at alt 374 ft near Waianae, Oahu (usgs:16211800). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/kaupuni-str-at-alt-374-ft-near-waianae-oahu

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer