Wailuku River at Iao Valley Road, Maui, HI

USGS Site No: 16605500 • Wailuku River • Maui County, HI

Wailuku River at Iao Valley Road, Maui, HI on the Wailuku River is currently at 0 cfs (Unknown) . Gage height: 10.24 ft.

Reading from

0
CFS Discharge
10.24
Gage Height (ft)
Unknown
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 27 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 0
25th Low threshold 8
50th (Median) Normal (median) 10
75th High threshold 15
95th Very High threshold 0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

3.5k 1.8k 0 cfs Feb 14 Mar 15
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
Mar 15, 2026 3,280 —
Mar 14, 2026 3,250 —
Mar 13, 2026 1,160 —
Mar 12, 2026 389 —
Mar 11, 2026 56 —
Mar 10, 2026 2 —
Mar 9, 2026 3 —
Mar 8, 2026 3 —
Mar 7, 2026 4 —
Mar 6, 2026 5 —
Mar 5, 2026 6 —
Mar 4, 2026 10 —
Mar 3, 2026 22 —
Mar 2, 2026 8 —
Mar 1, 2026 11 —
Feb 28, 2026 16 —
Feb 27, 2026 27 —
Feb 26, 2026 53 —
Feb 25, 2026 273 —
Feb 24, 2026 409 —
Feb 23, 2026 581 —
Feb 22, 2026 21 —
Feb 21, 2026 46 —
Feb 20, 2026 86 —
Feb 19, 2026 8 —
Feb 18, 2026 12 —
Feb 17, 2026 33 —
Feb 16, 2026 94 —
Feb 15, 2026 56 —
Feb 14, 2026 43 —

Station Information

USGS Site No
16605500
State
HI
County
Maui County
Coordinates
20.8830, -156.5338
Drainage Area
7 mi²
Datum (ft)
663.0
HUC Code
20020000
View on USGS NWIS →

Recent Extremes

Max discharge
3,280 cfs
Mar 15, 2026
Min discharge
0 cfs
Oct 14, 2025

Computed from the local daily-values archive.