Kaukonahua Stream below Wahiawa Reservoir, Oahu water level

Name: Kaukonahua Stream below Wahiawa Reservoir, 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, Kaukonahua Stream, Hawaii, United States

Directions

Normal for mid-October

Water level

6.18ft Up 0.28 ft over the last 24 hours

Measured Oct 20, 2026, 08:55 PM HST (1 hour ago)

Flow: 52.2 cfs

History

7 days

Water level

What this means

Water levels are unremarkable at Kaukonahua Stream below Wahiawa Reservoir, Oahu, where the gauge shows 6.18 ft.

It is on the way up, by 0.28 ft over the past 24 hours. The 30-day range is 5.84 ft – 6.18 ft.

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

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

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

Weather at the gauge

Rain in the last 3 days: 0.32 in. Rain that falls upstream can take hours or days to show up at a river gauge.

20 Tue 79° 68° 0.12 in, 93% Wind 13 mph

21 Wed 79° 65° 0.02 in, 57% Wind 11 mph

22 Thu 79° 63° 0.02 in, 55% Wind 7 mph

23 Fri 80° 63° – Wind 8 mph

24 Sat 81° 64° – Wind 7 mph

25 Sun 75° 65° 0.05 in, 47% Wind 7 mph

26 Mon 82° 64° 0.06 in, 30% Wind 5 mph

Forecast: Open-Meteo

Sunrise 06:31 AM Sunset 06:04 PM Daylight 11 hr, 33 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Wahiawa Ditch at Wahiawa, OahuCanal gauge, Wahiawa Ditch	9.8 cfs	Normal	+0.3 cfs	0.0 mi
Wahiawa Reservoir at Spillway at Wahiawa, OahuReservoir, Wahiawa Reservoir	55.71 ft	Very low	+0.42 ft	0.3 mi
Upper Helemano Reservoir near Wahiawa, OahuReservoir, Upper Helemano Reservoir	42.77 ft	Very high	−0.08 ft	2.3 mi
SF Kaukonahua Str at E pump, near Wahiawa, OahuRiver gauge, SF Kaukonahua Str	1.78 ft	Below flood stage	−0.14 ft	3.6 mi
Helemano 6 Reservoir, OahuReservoir	22.41 ft	Low	−0.45 ft	3.7 mi
Ku Tree Reservoir near Wahiawa, OahuReservoir, Ku Tree Reservoir	17.19 ft	Low	±0	4.5 mi
Kemoo 5 Reservoir, OahuReservoir	14.67 ft	Normal	+0.04 ft	5.1 mi
Koolau Reservoir near Wahiawa, OahuReservoir, Koolau Reservoir	6.72 ft	Very high	+0.19 ft	5.2 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 Kaukonahua Stream below Wahiawa Reservoir, Oahu today?

On Oct 20, 2026, 08:55 PM HST, the water level was 6.18 ft. Up 0.28 ft over the last 24 hours.

Is Kaukonahua Stream below Wahiawa Reservoir, Oahu rising or falling?

Up 0.28 ft over the last 24 hours.

Is the level of Kaukonahua Stream below Wahiawa Reservoir, Oahu normal?

Normal 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:16210200 (Agency page)
Coordinates: 21.50025, -158.05109 (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	6.18 ft	2026-10-21 06:55	Provisional
Flow	52.2 cfs	2026-10-21 06:55	Provisional

Download

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How to cite

U.S. Geological Survey: Kaukonahua Stream below Wahiawa Reservoir, Oahu (usgs:16210200). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/kaukonahua-stream-below-wahiawa-reservoir-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