Opaeula Str near Wahiawa, Oahu water level

Name: Opaeula Str near Wahiawa, 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, Opaeula Str, Hawaii, United States

Directions

Below flood stage

Water level

2.12ft Up 0.24 ft over the last 24 hours

Measured Oct 20, 2026, 12:55 PM HST (1 hour ago)

Flow: 13.9 cfs

History

7 days

Water level Minor flood stage

What this means

The gauge at Opaeula Str near Wahiawa, Oahu reads 2.12 ft, a normal level.

It is 10.08 ft below the flood stage of 12.20 ft.

The water is rising: up 0.24 ft over the past 24 hours. There is still 10.08 ft of room before flood stage. Over the past 30 days it has moved between 1.78 ft and 2.59 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

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 12.20 ft, still 10.08 ft away.

What happens at each level

14.50 ft: Flooding inundates homes and other structures in Haleiwa. This also depends on the tide.
12.00 ft: Water levels may reach properties in Haleiwa but not cause damage. This also depends on the tide.
2.12 ft: Right now

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

Weather at the gauge

Rain in the last 3 days: 0.30 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 77° 67° 0.20 in, 100% Wind 15 mph

18 Sun 78° 67° 0.34 in, 100% Wind 14 mph

19 Mon 78° 66° 0.18 in, 93% Wind 14 mph

20 Tue 77° 67° 0.08 in, 87% Wind 14 mph

21 Wed 76° 65° 0.14 in, 56% Wind 10 mph

22 Thu 79° 64° 0.11 in, 63% Wind 6 mph

23 Fri 83° 63° – Wind 3 mph

Forecast: Open-Meteo

Sunrise 06:30 AM Sunset 06:04 PM Daylight 11 hr, 34 min Waxing gibbous 72%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Upper Helemano Reservoir near Wahiawa, OahuReservoir, Upper Helemano Reservoir	42.79 ft	Very high	−0.13 ft	3.1 mi
Kamananui Str at Pupukea Mil Rd, OahuRiver gauge, Kamananui Str	1.15 ft	Normal	+0.14 ft	4.1 mi
Helemano 6 Reservoir, OahuReservoir	22.61 ft	Normal	−0.24 ft	4.3 mi
Ku Tree Reservoir near Wahiawa, OahuReservoir, Ku Tree Reservoir	17.19 ft	Low	±0	4.7 mi
NF Kaukonahua Str above RB, near Wahiawa, OahuRiver gauge, NF Kaukonahua Str	1.84 ft	Below flood stage	−0.27 ft	4.8 mi
SF Kaukonahua Str at E pump, near Wahiawa, OahuRiver gauge, SF Kaukonahua Str	1.94 ft	Below flood stage	−0.16 ft	5.1 mi
Koolau Reservoir near Wahiawa, OahuReservoir, Koolau Reservoir	6.70 ft	Very high	+0.23 ft	5.2 mi
Wahiawa Ditch at Wahiawa, OahuCanal gauge, Wahiawa Ditch	6.8 cfs	Low	−4.4 cfs	5.4 mi

Questions and answers

What is flood stage for the Opaeula Str near Wahiawa, Oahu?

The official flood stage is 12.20 ft. The level is currently 10.08 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 Opaeula Str near Wahiawa, Oahu today?

On Oct 20, 2026, 12:55 PM HST, the water level was 2.12 ft. Up 0.24 ft over the last 24 hours.

Is Opaeula Str near Wahiawa, Oahu rising or falling?

Up 0.24 ft over the last 24 hours.

Is the level of Opaeula Str near Wahiawa, 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:16345000 (Agency page)
Coordinates: 21.56233, -158.00026 (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	2.12 ft	2026-10-20 22:55	Provisional
Flow	13.9 cfs	2026-10-20 22:55	Provisional

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How to cite

U.S. Geological Survey: Opaeula Str near Wahiawa, Oahu (usgs:16345000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/opaeula-str-near-wahiawa-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