Wailuku River at Iao Valley Road, Maui water level

Name: Wailuku River at Iao Valley Road, Maui 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, Wailuku River, Hawaii, United States

Directions

Latest reading

Water level

10.10ft Down 0.25 ft over the last 24 hours

Measured Oct 20, 2026, 11:50 PM HST (33 min ago)

History

7 days

Water level

What this means

The U.S. Geological Survey has the Wailuku River at Iao Valley Road, Maui at 10.10 ft. The agency publishes no normal range or warning level for this river yet, so there is nothing to judge the number against.

It is still going down, by 0.25 ft over the past 24 hours. The 30-day range is 10.10 ft – 11.28 ft.

Over the past seven days the change adds up to −0.53 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Paddling and fishing conditions

Compare today with the chart before you go; local outfitters often know which stage suits their stretch.

Weather at the gauge

The forecast is not available right now.

Sunrise 06:24 AM Sunset 05:58 PM Daylight 11 hr, 34 min Waxing gibbous 76%

Map

Other gauges on the Wailuku River

Gauge	Level	Compared with normal	24 hours	Distance
Wailuku River at Kepaniwai Park, MauiRiver gauge, Wailuku River	0.94 ft	Below flood stage	−0.15 ft	0.4 mi
Wailuku River near KaumanaRiver gauge, Wailuku River	7.9 cfs	High	−3.1 cfs	115 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Waihee River above Waihee Dtch intk near Waihee, MauiRiver gauge, Waihee River	1.71 ft	Below flood stage	−0.21 ft	3.7 mi
Ukumehame Gulch near Olowalu, MauiRiver gauge, Ukumehame Gulch	10.4 cfs	Normal	−4.7 cfs	5.5 mi
Honokohau Stream near Honokohau, MauiRiver gauge, Honokohau Stream	2.09 ft	Below flood stage	−0.81 ft	6 mi
Kahakuloa Stream near Honokohau, MauiRiver gauge, Kahakuloa Stream	0.59 ft	Below flood stage	−0.44 ft	7 mi
Kahoma Stream at Lahaina, MauiRiver gauge, Kahoma Stream	0.54 ft	Below flood stage	−0.52 ft	9 mi
Honopou Stream near Huelo, MauiRiver gauge, Honopou Stream	1.04 ft	Below flood stage	−0.17 ft	18 mi
Waikamoi Str above Kula PL intake near Olinda, MauiRiver gauge, Waikamoi Str	0.75 ft	Below flood stage	−0.29 ft	20 mi
Nailiilihaele Stream near Huelo, MauiRiver gauge, Nailiilihaele Stream	20.4 cfs	Normal	−43.7 cfs	21 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 Wailuku River at Iao Valley Road, Maui today?

On Oct 20, 2026, 11:50 PM HST, the water level was 10.10 ft. Down 0.25 ft over the last 24 hours.

Is Wailuku River at Iao Valley Road, Maui rising or falling?

Down 0.25 ft over the last 24 hours. Down 0.53 ft over the last 7 days.

Is the level of Wailuku River at Iao Valley Road, Maui normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

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:16605500 (Agency page)
Coordinates: 20.88297, -156.53384 (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	10.10 ft	2026-10-21 09:50	Provisional

Download

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How to cite

U.S. Geological Survey: Wailuku River at Iao Valley Road, Maui (usgs:16605500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/hawaii/wailuku-river-at-iao-valley-road-maui

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