Wainakarua River Mouth Surf Break

Lat Long: 45.27° S 170.86° E

Wainakarua River Mouth Surf Forecast and Surf Report

Issued: 11 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wainakarua River Mouth sea temperature is
9.7° C
1.2° 

Wainakarua River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Wainakarua River Mouth surf forecast from 8 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 9PM (local time) - 7ft (2.2m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 12 Aug, 9PM (local time) - 7ft (2.2m), 8s period, ENE swell with 699 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 9AM (local time) - 3ft (0.9m), 5s period with E swell.

Best Forecast Surf Conditions for Wainakarua River Mouth this week:

The surf forecast for Wainakarua River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 9AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.4m and 9s. Another secondary swell of 0.3m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Wainakarua River Mouth in the next 16 days are 2.2m 8s and forecast to arrive on Wednesday (Aug 12) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Aug 15) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sun 9th Aug)3ft (0.9m) 5s
Best Surf 9PM (Wed 12th Aug)7ft (2.2m) 8s
Most Powerful 9PM (Wed 12th Aug)7ft (2.2m) 8s

Table - best surf conditions forecast for Wainakarua River Mouth over the next 16 days.


Short Range Forecast

Light rain (total 9mm), mostly falling on Sat night. Very mild (max 10°C on Sun morning, min 6°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 13°C on Thu morning, min 6°C on Tue morning). Wind will be generally light.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
1
1
0
0
0
0
0
0
0
2
0
2
2
0
2
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSE
9
0.7
SSE
9
0.6
SSE
9
0.9
E
5
0.9
ESE
6
0.7
SSE
9
1.1
SSE
6
1.1
SE
7
0.9
SE
7
0.7
SE
7
0.4
SE
11
1.1
NE
5
2.2
ENE
8
1.6
E
8
1.4
E
8
1.2
E
8
1.1
E
8
1.2
E
8
1.2
E
8
1.1
E
8
0.9
E
8
Wave Graph
Metric surfscale
Energy kJ
100
71
55
43
57
70
88
102
77
47
31
64
572
341
270
191
153
191
185
144
104
Wind (km/h)
5
NNW
10
NE
10
NE
5
E
5
SW
25
WSW
20
SW
10
SSE
15
NNE
20
N
25
NNE
20
NNE
15
N
15
NNE
5
WNW
5
NW
10
ENE
10
W
5
SW
10
ESE
5
NNW
Wind State
glassy
cross-on
cross-on
glassy
cross-off
off
cross-off
cross
cross-on
cross
cross-on
cross
cross
cross-on
glassy
glassy
cross-on
off
cross-off
cross-on
cross-off
High Tide
10:51AM1.71m
11:17PM1.63m
11:54AM1.81m
00:17AM1.72m
12:52PM1.90m
1:12AM1.80m
1:45PM1.98m
2:05AM1.87m
2:37PM2.02m
2:55AM1.91m
3:26PM2.02m
3:45AM1.91m
4:15PM1.97m
Low Tide
5:08PM0.32m
5:28AM0.21m
6:07PM0.25m
6:26AM0.12m
7:04PM0.17m
7:22AM0.04m
7:58PM0.11m
8:16AM-0.03m
8:50PM0.06m
9:08AM-0.05m
9:41PM0.05m
10:00AM-0.04m
10:31PM0.06m
cloud
cloud
light rain
rain showers
cloud
light rain
light rain
part cloud
part cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:45
7:43
7:41
7:41
7:39
7:37
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:39
5:40
5:42
5:44
5:45
5:45
 mm
3
2
2
2
1
Temp °C
9
9
9
10
10
10
9
9
8
8
9
8
12
12
11
13
13
11
11
11
9
Feels °C
6
6
4
9
8
4
5
6
6
2
3
3
8
9
9
11
10
9
9
9
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Wainakarua River Mouth Surf forecast

The above surf forecast table for Wainakarua River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wainakarua River Mouth can be found by selecting the local surf guide option on the grey menu. Our Wainakarua River Mouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Wainakarua River Mouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Wainakarua River Mouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Otago? If you are looking for accommodation near Wainakarua River Mouth, camping, hotels and holiday cottages in Otago, consider staying in Dunedin which is 72 km (45 miles) away.

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