Waiau Uwha › Waiau Uwha Mouth

Waiau Uwha River at Mouth

75.8m³/s

Sat, 17 Oct, 11:05 pm · 23 min ago

Steady

Good ClearingClearing: 2.4 d since the last peak

Good now, and holding · base flow 35.7 m³/s stays above 35

3 h change: -2.88 m³/s
Steady for: 5 h
7-day peak: 355
Thu, 15 Oct, 3:30 pm
30-day median: 64.8
30-day range: 34.6 – 355
Mean annual flood: 1,100 m³/s
1-in-10-year flood: 1,400 m³/s
Highest gauged: 508 m³/s
Water temperature: 13.0 °C
Stage: 1.96 m
Recession: halves in 21 h
fitted to this recession, toward 35.7

JBNZ: minimum 35 m³/s for the sea to Leslie Hills (the sheet does not name a gauge); the upper thresholds are placeholders

Flow

m³/s · New Zealand time

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Water temperature

°C, last week

Recent rises

detected from hourly means

Peak	From	To	Rise	Settled
Thu, 15 Oct, 2:00 pm	35.7	343	9.6×	25 h
Sun, 4 Oct, 4:00 am	55.4	72.6	1.3×	14 h
Mon, 28 Sept, 4:00 am	46.9	242	5.2×	34 h
Sun, 20 Sept, 4:00 pm	67.2	188	2.8×	18 h
Fri, 18 Sept, 5:00 am	67.4	120	1.8×	21 h

Along the Waiau Uwha

Upstream

Waiau Uwha Marble Pt

109 m³/s

JBNZ river guide

Waiau Uwha River, sections that cite this gauge are marked

Sections

Waiau Uwha River

Sea to Leslie Hills Class 1

Shingle, braided · 68 km · 3.75 m/km

Minimum flow 35 cumecs. Waiau Uwha Mouth now 75.8 m³/s, above the minimum. The sheet does not name the gauge; this is our choice.

Launch SH1 bridge, or Waiau township

Low flows can present issues. All huts along this section are privately owned: seek permission from the owners before using them.

Leslie Hills to Ferry Bridge Class 2

Gorgy, rocks · 16 km · 3.9 m/km

Launch Waiau township, Mason River junction

Notify the commercial operator

Ferry Bridge to the Hope Class 2

Boulders, braided · 19 km · 6.3 m/km

Launch As above

Hope confluence to the Narrows Class 3

Rocky, rapids, gorgy · 19 km · 8.9 m/km

Launch Waiau riverbed above the Hanmer Ferry bridge

The Narrows have been boated. Very isolated section.

Narrows (Stanley River confluence) to the Ada No uplifting

From the Jet Boating New Zealand Canterbury river information sheet of July 2024, transcribed by hand on 17 October 2026. Uplifting is whether the 5-knot limit is lifted for the section. JBNZ can update the sheet at any time; flo checked it 4.9 h ago. Open the PDF.

Weather

at Waiau Uwha Mouth · Open-Meteo

10pm

Clear

6.3°

–

0 S

1am

Clear

3.8°

–

4 W

4am

Fog

1.6°

–

5 NW

7am

Fog

1.1°

–

4 NW

10am

Clear

9.4°

–

10 NE

1pm

Clear

11.0°

–

15 NE

4pm

Clear

11.0°

–

16 NE

7pm

Clear

9.2°

–

12 NE

10pm

Clear

6.9°

–

7 N

1am

Clear

6.5°

–

7 N

4am

Fog

4.1°

–

4 NW

7am

Partly cloudy

3.7°

–

8 NW

Sat Clear 6.3°/ 5.4° dry

Sun Fog 11.2°/ 1.1° dry

Mon Fog 15.7°/ 3.5° dry

Tue Fog 13.3°/ 6.9° dry