Kauai HUC8 20070000
A 2,402 km² sub-basin of the Hawaii region in HI. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
73
Moderate
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
10%
of 10 reporting
Median flow
216%
p76 of record
Water assets
1,266
12 springs · 534 wells
USGS gauges (13)
- Halaulani Str at alt 400 ft nr Kilauea, Kauai, HI160975005 cfsp18 · below normal
- Wainiha River nr Hanalei, Kauai, HI1610800090 cfsp56 · normal
- Hanalei River nr Hanalei, Kauai, HI16103000184 cfsp65 · normal
- Waialae Str at alt 3,820 ft nr Waimea, Kauai, HI160190009 cfsp67 · normal
- EB of NF Wailua River nr Lihue, Kauai, HI1606800041 cfsp72 · normal
- Left Branch Opaekaa Str nr Kapaa, Kauai, HI160715003 cfsp80 · above normal
- Kawaikoi Stream nr Waimea, Kauai, HI1601000046 cfsp90 · much above normal
- Waimea River near Waimea, Kauai, HI16031000149 cfsp91 · much above normal
- Waimea River US of Kekaha-Waiahulu Int., Kauai, HI1601600062 cfsp92 · much above normal
- SF Wailua River nr Lihue, Kauai, HI160600002,330 cfsp99 · much above normal
- Right Branch Lawai Stream nr Umauma Rd, Kauai, HI160523503 cfsno long-term record
- Waiahi Str US Upper Powerhouse, Kauai, HI1605790030 cfsno long-term record
- NF Wailua Riv abv N Wailua Ditch Int, Kauai, HI1606095023 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 0 | 0 | 1/10 | p76 |
| 2026-10-19 | 0 | 0 | 1/10 | p85 |
| 2026-10-18 | 0 | 0 | 1/10 | p78 |
| 2026-10-17 | 0 | 0 | 1/10 | p73 |
| 2026-10-16 | 0 | 0 | 1/10 | p72 |
| 2026-10-15 | 0 | 0 | 1/10 | p66 |
| 2026-10-14 | 0 | 0 | 2/10 | p76 |
| 2026-10-13 | 0 | 0 | 1/10 | p77 |
| 2026-10-12 | 0 | 0 | 1/10 | p81 |
| 2026-10-11 | 0 | 0 | 1/10 | p91 |
| 2026-10-10 | 0 | 0 | 1/10 | p80 |
| 2026-10-09 | 0 | 0 | 0/10 | p89 |
| 2026-10-08 | 0 | 0 | 0/10 | p80 |
| 2026-10-07 | 0 | 0 | 0/10 | p80 |
Top water assets
- 67Alexanderreservoir
- 67Waialae Str At Alt 3,820 Ft Nr Waimea, Kauai, Hiriver
- 67Kawaikoi Stream Nr Waimea, Kauai, Hiriver
- 66Omao Reservoirreservoir
- 66Kaneha Reservoirreservoir
- 66Elima Reservoirreservoir
- 66Aepoekolu Reservoirreservoir
- 66Piwai Reservoirreservoir
- 66Mimino Reservoirreservoir
- 66Aepoalua Reservoirreservoir