Kamananui Str at Maunawai, Oahu water level

Name: Kamananui Str at Maunawai, 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, Kamananui Str, Hawaii, United States

Directions

Below flood stage

Water level

2.25ft Down 0.07 ft over the last 24 hours

Measured Oct 20, 2026, 08:30 AM HST (1 hour ago)

Flow: 8.0 cfs

History

7 days

Water level Minor flood stage

What this means

The Kamananui Str at Maunawai, Oahu is at 2.25 ft, in the normal range.

It is 8.35 ft below the flood stage of 10.60 ft.

It has dropped 0.07 ft over the past 24 hours. In the last month it has stayed between 2.25 ft and 2.36 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Floating and fishing near Kamananui Str at Maunawai, Oahu

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 10.60 ft, 8.35 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

10.60 ft: Road on the left bank of the stream flooded. Park attractions upstream may also be affected.
2.25 ft: Right now

Impact statements from the U.S. National Weather Service.

Weather at the gauge

Rain in the last 3 days: 0.40 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 81° 71° 0.13 in, 92% Wind 17 mph

21 Wed 81° 72° 0.03 in, 49% Wind 12 mph

22 Thu 82° 69° – Wind 10 mph

23 Fri 82° 69° 0.01 in, 26% Wind 10 mph

24 Sat 81° 71° – Wind 10 mph

25 Sun 79° 69° 0.07 in, 49% Wind 11 mph

26 Mon 79° 68° – Wind 11 mph

Forecast: Open-Meteo

Sunrise 06:31 AM Sunset 06:05 PM Daylight 11 hr, 34 min Waxing gibbous 71%

Map

Other gauges on the Kamananui Str

Gauge	Level	Compared with normal	24 hours	Distance
Kamananui Str at Pupukea Mil Rd, OahuRiver gauge, Kamananui Str	1.05 ft	Normal	+0.01 ft	2.7 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Helemano 6 Reservoir, OahuReservoir	22.89 ft	Normal	+0.05 ft	5.8 mi
Opaeula Str near Wahiawa, OahuRiver gauge, Opaeula Str	1.89 ft	Below flood stage	−0.02 ft	6.1 mi
Kemoo 5 Reservoir, OahuReservoir	14.65 ft	Normal	+0.04 ft	6 mi
Kaukonahua Str at Waialua, OahuRiver gauge, Kaukonahua Str	16.71 ft	Below flood stage	−0.15 ft	6 mi
Upper Helemano Reservoir near Wahiawa, OahuReservoir, Upper Helemano Reservoir	42.80 ft	Very high	−0.15 ft	8 mi
Wahiawa Ditch at Wahiawa, OahuCanal gauge, Wahiawa Ditch	6.3 cfs	Low	−2.6 cfs	9 mi
Kaukonahua Stream below Wahiawa Reservoir, OahuRiver gauge, Kaukonahua Stream	51.3 cfs	Normal	+18.9 cfs	9 mi
Wahiawa Reservoir at Spillway at Wahiawa, OahuReservoir, Wahiawa Reservoir	55.70 ft	Very low	+1.05 ft	10 mi

Questions and answers

What is flood stage for the Kamananui Str at Maunawai, Oahu?

The official flood stage is 10.60 ft. The level is currently 8.35 ft below it.

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 Kamananui Str at Maunawai, Oahu today?

On Oct 20, 2026, 08:30 AM HST, the water level was 2.25 ft. Down 0.07 ft over the last 24 hours.

Is Kamananui Str at Maunawai, Oahu rising or falling?

Down 0.07 ft over the last 24 hours.

Is the level of Kamananui Str at Maunawai, Oahu normal?

Below flood stage. Judged against the official flood stage for this gauge.

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:16330000 (Agency page)
Coordinates: 21.63547, -158.05459 (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	2.25 ft	2026-10-20 18:30	Provisional
Flow	8.0 cfs	2026-10-20 18:30	Provisional

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How to cite

U.S. Geological Survey: Kamananui Str at Maunawai, Oahu (usgs:16330000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/kamananui-str-at-maunawai-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