Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 5 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
10.7°C
1.5° 

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


Catlins River Mouth surf forecast from 4 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 9PM (local time) - 13ft (4.0m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Friday 11 Sep, 3AM (local time) - 20ft (6.0m), 18s period, SW swell with 22,669 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 9PM (local time) - 13ft (4.0m), 16s period with SW swell.

Best Forecast Surf Conditions for Catlins River Mouth this week:

The surf forecast for Catlins River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 9PM. The primary swell is predicted to be 4.0m and 16s period with a secondary swell of 3.0m and 17s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Catlins River Mouth in the next 16 days are 6.0m 18s and forecast to arrive on Friday (Sep 11) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Sep 10) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 5th Sep)13ft (4.0m) 16s
Best Surf 9PM (Sat 5th Sep)13ft (4.0m) 16s
Most Powerful 3AM (Fri 11th Sep)20ft (6.0m) 18s

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


Short Range Forecast

Heavy rain (total 20mm), heaviest during Sat night. Very mild (max 12°C on Sat morning, min 6°C on Sun afternoon). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sun morning).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Wed night. Very mild (max 11°C on Wed afternoon, min 5°C on Tue night). Winds decreasing (fresh winds from the ENE on Mon afternoon, calm by Tue afternoon).

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
3
2
!
4
3
2
0
0
0
1
1
2
2
0
!
3
4
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSW
15
2.1
SW
15
1.9
SSW
16
2.5
SSW
17
5
SW
17
2.3
SSW
16
2
SSW
16
1.3
SSW
15
0.9
SSW
14
0.7
SW
14
0.8
SSW
9
0.7
S
8
0.3
SSW
21
0.5
S
20
0.7
SSW
18
0.7
SSW
18
4
SW
13
1.9
SSW
16
3
SSW
19
3.5
SSW
19
Wave Graph
Metric surfscale
Energy kJ
674
1810
1765
3724
13248
2853
1923
674
362
189
110
71
86
194
333
322
4448
1699
6179
8756
Wind (km/h)
40
W
35
W
35
NW
30
WNW
20
W
5
NW
10
SW
5
E
25
ENE
30
ENE
20
NNE
5
N
5
ENE
10
WNW
5
NNW
15
ENE
25
WSW
20
WSW
30
SW
20
WNW
Wind State
cross-off
cross-off
off
cross-off
cross-off
glassy
cross
cross-on
cross-on
cross
cross-off
cross-off
glassy
cross-off
off
cross
cross-off
cross-off
cross
cross-off
High Tide
8:30PM2.19m
9:13AM2.22m
9:44PM2.17m
10:26AM2.23m
10:54PM2.21m
11:32AM2.28m
11:57PM2.28m
12:31PM2.35m
00:54AM2.37m
1:25PM2.42m
1:44AM2.45m
2:14PM2.48m
2:31AM2.52m
Low Tide
2:52AM0.94m
3:27PM1.03m
4:02AM0.92m
4:39PM0.99m
5:12AM0.85m
5:49PM0.90m
6:15AM0.74m
6:47PM0.79m
7:11AM0.64m
7:38PM0.70m
8:01AM0.57m
8:24PM0.64m
rain showers
part cloud
part cloud
rain showers
mod rain
light rain
rain showers
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
light rain
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:01
7:00
6:58
6:56
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:14
6:15
6:16
6:17
6:19
6:20
6:22
 mm
3
1
10
3
3
3
Temp °C
8
9
12
12
8
7
7
7
8
9
9
9
10
8
10
11
11
8
8
6
Feels °C
-1
2
5
5
2
5
5
2
1
2
3
7
8
6
7
7
7
1
0
-1
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Catlins River Mouth:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Catlins River Mouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Catlins River Mouth Surf forecast

The above surf forecast table for Catlins 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 Catlins River Mouth can be found by selecting the local surf guide option on the grey menu. Our Catlins 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 (Catlins 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 Catlins 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.

Catlins River Mouth is 91 km (57 miles) from Dunedin. If you plan a holiday in Catlins, look for hotels and other accommodation in Dunedin. Dunedin has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest