Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 5 pm 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
11.0° 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 23 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 12AM (local time) - 16ft (5.0m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Thursday 30 Jul, 9AM (local time) - 18ft (5.5m), 14s period, SW swell with 10,797 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 3AM (local time) - 1.5ft (0.5m), 14s 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 Friday (Jul 24) at 3AM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.4m and 6s. 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 5.5m 14s and forecast to arrive on Thursday (Jul 30) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Wednesday (Jul 29) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 24th Jul)1.5ft (0.5m) 14s
Best Surf12AM (Thu 30th Jul)16ft (5.0m) 14s
Most Powerful 9AM (Thu 30th Jul)18ft (5.5m) 14s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Fri night. Very mild (max 13°C on Thu afternoon, min 3°C on Sat morning). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 12°C on Tue afternoon, min 4°C on Sun night). Wind will be generally light.

Thu
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
2
1
3
4
3
3
3
2
2
2
3
4
4
4
4
4
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
15
0.5
SW
14
0.9
SSW
15
1.3
SSW
17
1.7
SSW
17
1.7
SSW
16
2.1
SSW
16
1.6
SSW
15
3
SW
13
1.3
SSW
13
0.9
SW
12
0.9
SSW
12
0.8
ESE
13
1.2
ESE
14
1.6
ESE
14
1.6
ESE
14
1.6
SSW
14
2.2
SSW
17
2.2
SSW
16
5
SW
14
Wave Graph
Metric surfscale
Energy kJ
54
95
348
890
1516
1531
2028
1024
2639
615
220
243
218
605
966
900
971
2660
2477
9547
Wind (km/h)
10
NNW
10
NNW
10
NW
10
NE
30
SW
15
WSW
15
W
15
NNW
15
WNW
15
WNW
15
NW
15
NW
15
NNW
20
NW
15
NNW
10
NW
15
NNW
15
NNW
15
N
40
WNW
Wind State
cross-off
off
off
cross
cross
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
off
High Tide
10:48PM2.14m
11:21AM2.16m
11:43PM2.14m
12:14PM2.17m
00:34AM2.16m
1:02PM2.19m
1:21AM2.17m
1:47PM2.21m
2:03AM2.20m
2:28PM2.24m
2:41AM2.22m
3:05PM2.26m
Low Tide
4:27PM1.17m
5:00AM1.13m
5:28PM1.20m
5:58AM1.11m
6:27PM1.17m
6:50AM1.06m
7:17PM1.11m
7:36AM0.99m
8:00PM1.03m
8:17AM0.92m
8:37PM0.96m
8:54AM0.86m
9:12PM0.89m
cloud
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part cloud
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cloud
cloud
cloud
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part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:11
8:10
8:08
8:07
8:07
8:06
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:23
5:24
5:27
5:28
5:29
 mm
7
2
1
2
Temp °C
13
10
9
10
7
5
6
4
6
7
4
8
9
10
11
12
11
10
11
9
Feels °C
10
8
6
7
1
0
1
-2
2
3
0
3
5
5
7
9
7
6
8
0
  • 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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