Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 5 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
10.9°C
1.8° 

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 1 Sep 2026:

  • Best quality surf: Wednesday 2 Sep, 6AM (local time) - 10ft (3.0m), 13s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 10ft (3.0m), 15s period, SSW swell with 3,921 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 3AM (local time) - 10ft (3.0m), 15s period with SSW 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 Wednesday (Sep 02) at 3AM. The primary swell is predicted to be 3.0m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Catlins River Mouth in the next 16 days are 3.0m 15s and forecast to arrive on Wednesday (Sep 02) 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 1.6m 7s period and expected on Wednesday (Sep 02) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 2nd Sep)10ft (3.0m) 15s
Best Surf 6AM (Wed 2nd Sep)10ft (3.0m) 13s
Most Powerful 3AM (Wed 2nd Sep)10ft (3.0m) 15s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 14°C on Wed morning, min 9°C on Tue afternoon). Winds increasing (calm on Wed night, fresh winds from the W by Fri morning).

Days 5-7 Weather Summary

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

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
3
3
2
4
3
2
3
0
1
1
1
4
4
4
3
0
0
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4.5
SSW
13
3
SSW
15
2.5
SSW
13
1.9
SSW
12
2.5
WSW
13
1.2
SW
15
1.3
SSW
16
1.5
SSW
16
1.3
SSW
15
2.5
WSW
8
1.3
SSW
14
1.4
SSW
16
2.1
SSW
17
2.4
SSW
17
2.1
SSW
16
1.7
SSW
16
1.3
SSW
15
2.5
S
8
2.4
S
8
1.1
SE
7
Wave Graph
Metric surfscale
Energy kJ
6627
4697
1871
1047
2553
623
926
1081
674
865
691
969
2374
3427
2269
1358
683
844
759
109
Wind (km/h)
35
W
30
WNW
25
NW
20
WNW
10
WNW
5
N
15
NE
10
NNW
35
W
35
W
30
WNW
25
WNW
15
WNW
10
NNW
10
N
10
SW
45
S
25
SSW
20
SW
10
W
Wind State
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross
cross-on
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
11:59PM0.80m
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
part cloud
cloud
cloud
rain showers
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
clear
part cloud
cloud
part cloud
cloud
mod rain
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
3
3
1
1
2
1
6
Temp °C
10
11
14
14
13
12
12
13
9
8
7
12
14
9
13
12
9
8
8
7
Feels °C
3
5
9
10
10
10
9
8
1
0
-1
7
10
5
10
10
7
2
2
4
  • Map Icons:
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  • 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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