Waimanalo Str at Waimanalo, Oahu water level

Name: Waimanalo Str at Waimanalo, 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, Waimanalo Str, Hawaii, United States

Directions

Below flood stage

Water level

7.14ft Steady over the last 24 hours

Measured Oct 20, 2026, 11:25 PM HST (49 min ago)

Flow: 8.0 cfs

History

7 days

Water level Minor flood stage

What this means

The gauge at Waimanalo Str at Waimanalo, Oahu reads 7.14 ft, a normal level.

It is 4.86 ft below the flood stage of 12.00 ft.

The level has held steady over the past 24 hours. Over the past 30 days it has moved between 7.13 ft and 7.15 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 12.00 ft, still 4.86 ft away.

What happens at each level

13.00 ft: Adjacent agricultural lands inundated. Also, nearby ungaged Kahawai Stream and Inoaole Stream will likely be overflowing. Inoaole Stream will easily inundate Hihimanu St. at a low water crossing. There are also several small unnamed drainages crossing Waikupanaha St. that may be flooding the road.
7.14 ft: Right now

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

Weather at the gauge

Rain in the last 3 days: 0.28 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 80° 74° 0.05 in, 73% Wind 17 mph

18 Sun 81° 73° 0.11 in, 84% Wind 18 mph

19 Mon 81° 73° 0.35 in, 33% Wind 17 mph

20 Tue 80° 74° 0.02 in, 41% Wind 18 mph

21 Wed 79° 74° 0.15 in Wind 14 mph

22 Thu 81° 73° 0.07 in Wind 11 mph

23 Fri 83° 70° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 06:30 AM Sunset 06:03 PM Daylight 11 hr, 33 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Makawao Str near Kailua, OahuRiver gauge, Makawao Str	6.98 ft	Below flood stage	−0.02 ft	2.2 mi
Kawainui Marsh near levee sta 15+00, OahuRiver gauge, Kawainui Marsh	5.69 ft	Very high	−0.01 ft	3.3 mi
Waiakeakua Str at Honolulu, OahuRiver gauge, Waiakeakua Str	0.48 ft	Below flood stage	−0.19 ft	4.8 mi
Pukele Stream near Honolulu, OahuRiver gauge, Pukele Stream	0.98 ft	Below flood stage	−0.02 ft	4.9 mi
Waihi Stream at Honolulu, OahuRiver gauge, Waihi Stream	1.80 ft	Below flood stage	−0.29 ft	4.9 mi
Kawa Str at Kaneohe, OahuRiver gauge, Kawa Str	3.48 ft	Below flood stage	−0.01 ft	5.5 mi
Manoa Stream at Woodlawn Drive, OahuRiver gauge, Manoa Stream	3.38 ft	Below flood stage	−0.48 ft	5.9 mi
Kaneohe Str below Kamehameha Hwy, OahuRiver gauge, Kaneohe Str	15.92 ft	Below flood stage	−0.03 ft	6.2 mi

Questions and answers

What is flood stage for the Waimanalo Str at Waimanalo, Oahu?

The official flood stage is 12.00 ft. The level is currently 4.86 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 Waimanalo Str at Waimanalo, Oahu today?

On Oct 20, 2026, 11:25 PM HST, the water level was 7.14 ft. Steady over the last 24 hours.

Is Waimanalo Str at Waimanalo, Oahu rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Waimanalo Str at Waimanalo, 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:16249000 (Agency page)
Coordinates: 21.34997, -157.72892 (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	7.14 ft	2026-10-21 09:25	Provisional
Flow	8.0 cfs	2026-10-21 09:25	Provisional

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How to cite

U.S. Geological Survey: Waimanalo Str at Waimanalo, Oahu (usgs:16249000). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/waimanalo-str-at-waimanalo-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