Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 5 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
11.0°C
1.9° 

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 31 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 12PM (local time) - 18ft (5.5m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 12PM (local time) - 18ft (5.5m), 13s period, SW swell with 10,113 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 12PM (local time) - 18ft (5.5m), 13s 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 Tuesday (Sep 01) at 12PM. The primary swell is predicted to be 5.5m and 13s period with a secondary swell of 3.5m and 13s. 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 5.5m 13s and forecast to arrive on Tuesday (Sep 01) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Sunday (Sep 06) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 1st Sep)18ft (5.5m) 13s
Best Surf12PM (Tue 1st Sep)18ft (5.5m) 13s
Most Powerful12PM (Tue 1st Sep)18ft (5.5m) 13s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Tue morning. Very mild (max 14°C on Wed morning, min 6°C on Tue morning). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the N by Thu morning).

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Sun night. Very mild (max 14°C on Sat afternoon, min 6°C on Sun night). Mainly strong winds.

Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
4
3
3
2
3
1
3
0
0
1
3
4
4
4
3
0
0
!
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
6
SW
13
3.5
SSW
13
3
SSW
15
2.5
SSW
13
1.9
SSW
12
1.3
S
11
1.2
SSW
14
1.3
SSW
17
1.6
SSW
16
1.3
SSW
15
1.3
SSW
15
1.6
SW
10
1.3
SSW
15
2.1
SSW
16
2.2
SSW
17
1.7
SSW
16
1.4
SSW
16
3
SW
15
3
SSW
12
4
SSW
12
2.5
S
10
Wave Graph
Metric surfscale
Energy kJ
11732
3999
4697
1871
1064
401
561
911
1214
674
674
515
805
2236
2790
1589
1016
4121
2689
4762
1283
Wind (km/h)
30
W
35
W
30
WNW
25
NW
15
WNW
20
WSW
5
N
15
NE
10
NNW
40
W
35
W
30
WNW
25
WNW
15
NW
10
NNW
15
NNE
5
W
45
SW
35
SW
35
SW
15
W
Wind State
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross
cross
cross
cross-off
High Tide
5:40PM2.37m
6:05AM2.37m
6:26PM2.32m
6:59AM2.31m
7:22PM2.25m
8:02AM2.25m
8:30PM2.19m
9:13AM2.22m
9:44PM2.17m
10:26AM2.23m
10:54PM2.21m
11:32AM2.28m
11:57PM2.28m
Low Tide
11:39AM0.79m
11:59PM0.80m
12:27PM0.87m
00:49AM0.86m
1:19PM0.94m
1:46AM0.91m
2:19PM1.00m
2:52AM0.94m
3:27PM1.03m
4:02AM0.92m
4:39PM0.99m
5:12AM0.85m
5:49PM0.90m
light rain
light rain
cloud
cloud
part cloud
rain showers
part cloud
part cloud
rain showers
part cloud
clear
rain showers
part cloud
part cloud
cloud
cloud
cloud
mod rain
rain showers
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:09
7:07
7:05
7:03
7:01
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:12
6:13
6:14
6:15
6:16
6:17
 mm
2
2
1
1
1
8
1
2
Temp °C
6
10
11
14
13
12
13
13
11
9
10
8
13
14
10
12
13
10
7
8
7
Feels °C
-2
3
6
9
10
8
10
10
9
0
2
-1
8
9
6
8
11
6
-2
-1
2
  • 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 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.

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