Hawaii · river

Waiahi Str Us Upper Powerhouse, Kauai

Live conditions for this USGS-monitored stretch of water, updated every 15 minutes.

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Caution

Paddle Score, from live wind and water conditions

Wind

13 mph

gusting to 28 mph

Air temp

72°F

100% chance of rain

River flow

19.8 cfs

low for this date

Best day to paddle this week

Thursday · 68

Today
26
15 mph
78°
Sun
28
14 mph
78°
Mon
63
12 mph
79°
Tue
59
10 mph
79°
Wed
61
10 mph
79°
Thu
68
10 mph
76°
Best
Fri
53
11 mph
77°

Scored from each day's peak forecast wind, heat, and rain chance — river flow isn't forecastable, so check back before you load the boat.

Wind, next 12 hours

mph

Is this flow normal for August 1?

Today's 19.8 cfs is 29% below the median for this date — which counts as low water here.

The median flow on this date is 28 cfs, across 6 years of USGS record at this gauge. Whether that is runnable depends on the stretch — this is context, not a recommendation.

Why this score

Wind — 13 mph — hard work, whitecaps likely-18
Gusts — Gusting to 28 mph — 16 mph over sustained-11
Rain — 100% chance in the next 6 hours-25

We don't have launch notes for this one

This page is built from the USGS gauge at this location, so the flow and weather are real — but we haven't verified where to put in, what the hazards are, or whether this stretch is legal or sensible to paddle. We'd rather say that than invent it. The links below are where to find out.

We also don't have a verified safe-flow range here, so the Paddle Score reflects weather only. Judge the flow number against local knowledge, not against our score.

Do your own homework

We show you live conditions. For local knowledge — where to put in, what the hazards are, whether it's worth the drive — here's where paddlers actually talk about this water. We don't vet these sources; check the dates and judge for yourself.

Paddler discussion on Reddit
Trip reports and local warnings, straight from the source
Search American Whitewater
Rapid classifications and gauge-linked run descriptions
Satellite view and access roads
Check parking, put-ins, and what the banks actually look like
Video from this water
The fastest way to see the character of a run before you drive
USGS gauge 16057900
Full hydrograph, historical flows, and station metadata

Nearby water

All paddling spots in Hawaii →

Hour	Wind (mph)	Gusts (mph)
7a	13	28
8a	13	29
9a	14	33
10a	14	33
11a	14	33
12p	15	34
1p	15	34
2p	15	35
3p	15	35
4p	15	35
5p	14	34
6p	13	33

Hour	Wind (mph)	Gusts (mph)
7a	13	28
8a	13	29
9a	14	33
10a	14	33
11a	14	33
12p	15	34
1p	15	34
2p	15	35
3p	15	35
4p	15	35
5p	14	34
6p	13	33

Hour	Wind (mph)	Gusts (mph)
7a	13	28
8a	13	29
9a	14	33
10a	14	33
11a	14	33
12p	15	34
1p	15	34
2p	15	35
3p	15	35
4p	15	35
5p	14	34
6p	13	33

Hour	Wind (mph)	Gusts (mph)
7a	13	28
8a	13	29
9a	14	33
10a	14	33
11a	14	33
12p	15	34
1p	15	34
2p	15	35
3p	15	35
4p	15	35
5p	14	34
6p	13	33