Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 11 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
10.8°C
1.7° 

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 25 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 9AM (local time) - 11ft (3.5m), 14s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 12AM (local time) - 20ft (6.0m), 16s period, SW swell with 16,466 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 12AM (local time) - 6ft (1.9m), 8s period with ENE 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 Friday (Aug 28) at 12AM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.1m and 11s. Another secondary swell of 0.9m and 13s is also forecast. 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 16s and forecast to arrive on Monday (Aug 31) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Friday (Aug 28) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 28th Aug)6ft (1.9m) 8s
Best Surf 9AM (Sun 30th Aug)11ft (3.5m) 14s
Most Powerful12AM (Mon 31st Aug)20ft (6.0m) 16s

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu afternoon. Very mild (max 12°C on Fri morning, min 6°C on Wed night). Winds decreasing (strong winds from the NE on Thu morning, calm by Fri morning).

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Sun morning. Very mild (max 14°C on Sat afternoon, min 4°C on Sun night). Winds increasing (light winds from the NW on Fri night, strong winds from the SW by Sun afternoon).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
3
2
2
0
0
3
2
1
1
2
2
0
!
0
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
SW
14
2.1
SSW
14
1.9
SSW
13
2.5
SSW
15
2.3
S
14
1.9
S
13
1.9
ENE
8
1.4
ENE
9
1.4
ENE
9
1.1
ENE
10
0.6
SSW
19
0.7
SSW
18
0.9
SSW
17
3.5
SW
14
4
SSW
15
6
SW
16
3.5
SSW
16
4.5
SSW
15
4
SSW
16
Wave Graph
Metric surfscale
Energy kJ
5632
1674
1188
2664
1977
1207
480
287
307
214
295
337
419
4306
6312
16466
6425
9114
7743
Wind (km/h)
20
W
10
SW
15
S
15
ESE
40
ENE
45
NE
10
N
10
W
10
SW
20
W
15
NNW
10
NW
30
W
30
WSW
45
SW
20
W
35
WSW
35
WSW
30
W
Wind State
cross-off
cross
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
cross-off
off
off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
High Tide
1:32AM2.19m
1:56PM2.23m
2:09AM2.24m
2:33PM2.29m
2:45AM2.30m
3:09PM2.33m
3:20AM2.36m
3:44PM2.38m
3:57AM2.40m
4:21PM2.40m
4:36AM2.42m
4:59PM2.40m
Low Tide
7:46AM0.88m
8:06PM0.89m
8:24AM0.80m
8:41PM0.82m
9:00AM0.74m
9:16PM0.77m
9:37AM0.70m
9:53PM0.74m
10:15AM0.70m
10:32PM0.74m
10:56AM0.73m
11:13PM0.76m
rain showers
light rain
cloud
part cloud
cloud
mod rain
cloud
cloud
rain showers
part cloud
clear
part cloud
light rain
rain showers
light rain
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:20
7:18
7:16
7:16
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:04
6:05
6:07
6:07
6:08
 mm
1
2
6
3
4
5
3
1
2
Temp °C
11
9
9
8
7
8
8
12
11
10
12
14
11
8
6
7
10
11
10
Feels °C
5
6
5
4
-3
-1
2
10
9
5
7
10
5
-1
-5
-1
3
3
4
  • 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