Wainakarua River Mouth surfForecast / Otago / New Zealand

information circle12 Day Weather and Surf, issued 5 pm Thursday 18 Sep 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Wainakarua River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Wainakarua River Mouth sea temperature is
10.3° C
(Which is 1.5°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Wainakarua River Mouth this week:

The surf forecast for Wainakarua River Mouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 6AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Wainakarua River Mouth in the next 12 days are 1.5m 13s and forecast to arrive on Friday (Sep 19) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Sunday (Sep 21) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 19th Sep)5ft (1.5m) 9s
Best Surf12AM (Sat 20th Sep)4.5ft (1.4m) 13s
Most Powerful 9PM (Fri 19th Sep)5ft (1.5m) 13s

Table - best surf conditions forecast for Wainakarua River Mouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 14°C on Sat afternoon, min 4°C on Thu night). Winds decreasing (strong winds from the SW on Thu afternoon, calm by Sun morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 15°C on Sun afternoon, min 8°C on Tue night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
2
0
3
2
0
0
3
2
1
1
0
1
0
0
0
1
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.5
SSE
1.6
S
1.4
SSE
1.4
SSE
1.4
SSE
1.2
SSE
0.8
SSE
0.8
NE
2.1
ENE
1.6
ENE
0.9
ENE
0.8
ENE
0.9
ENE
0.6
ENE
0.6
ENE
0.3
S
0.3
S
0.3
ENE
0.3
E
0.4
ESE
0.7
E
Period(s) (?)13891013131369109109109151411111413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)983233003866634542194368645413712312172594135232170171
Wind
(km/h)
45
SW
30
SW
10
WNW
25
NE
15
NNW
5
NW
15
NE
20
N
0
SSE
10
WSW
10
W
5
NW
15
ENE
10
W
5
NE
15
ENE
20
NNE
5
SSW
10
SSE
5
N
5
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offcross-
on
cross-
off
glasscross-
on
crossglasscross-
off
offcross-
off
cross-
on
offcross-
on
cross-
on
crosscross-
off
crosscrosscross
High Tide
/ height (m)
12:55AM
1.73
1:21PM
1.83
1:39AM
1.75
2:04PM
1.82
2:21AM
1.75
2:44PM
1.79
3:01AM
1.74
3:22PM
1.75
3:41AM
1.72
4:01PM
1.70
4:21AM
1.68
4:41PM
1.63
5:03AM
1.63
Low Tide
/ height (m)
6:44PM
0.23
7:00AM
0.16
7:30PM
0.21
7:46AM
0.15
8:12PM
0.20
8:28AM
0.16
8:52PM
0.21
9:09AM
0.19
9:31PM
0.23
9:50AM
0.23
10:11PM
0.27
10:33AM
0.30
10:52PM
0.33
11:18AM
0.37
Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise--6:31--6:30--6:28--6:26--6:24--6:22--6:20
Sunset6:28--6:29--6:30--6:30--6:31--6:34--6:35--
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
light rain
part cloud
part cloud
Rain (mm)
------------------1--
Temp. °C116896121410141511141512121091110912
Feels °C (?)1-232199510128111199758789
  • 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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Eyeball surf reportRecent Eyeball Surf Reports for Otago

  1. weather stationWind Update Cross-shore wind has turned cross-on at Dunedin - St Clair (moderate winds from the SSW at Port Chalmers wx 13 km from Dunedin - St Clair). 3.0m 8s swell from the SSW which is too big for here.

    Dunedin - St Clair
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38 km away, 1 h 23 min ago

22 km/h
SSW
0.0
10.3
Air / Water (°C)
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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 12 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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