Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth Surf Forecast and Surf Report

Issued: 11 pm 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
11.1° 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 1 Aug 2026:

  • Best quality surf: Monday 3 Aug, 12AM (local time) - 8ft (2.5m), 18s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Monday 3 Aug, 6AM (local time) - 18ft (5.5m), 13s period, SW swell with 10,875 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 12AM (local time) - 8ft (2.5m), 18s 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 Monday (Aug 03) at 12AM. The primary swell is predicted to be 4.0m and 11s period with a secondary swell of 2.5m and 18s. Another secondary swell of 0.7m and 12s 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 5.5m 13s and forecast to arrive on Monday (Aug 03) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Aug 02) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 3rd Aug)8ft (2.5m) 18s
Best Surf12AM (Mon 3rd Aug)8ft (2.5m) 18s
Most Powerful 6AM (Mon 3rd Aug)18ft (5.5m) 13s

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


Short Range Forecast

Moderate rain (total 18mm), heaviest on Mon morning. Very mild (max 12°C on Sun afternoon, min 5°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, light winds from the SSW by Tue afternoon).

Days 5-7 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Thu afternoon, min 4°C on Tue night). Wind will be generally light.

Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
!
!
!
0
!
!
4
3
2
2
2
1
4
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SE
12
1.2
SE
12
1.2
SSW
19
2.5
SSW
18
3.5
SSW
16
3.5
SSW
16
4
SSW
14
4.5
SSW
13
3.5
S
12
3
S
11
2.1
SSE
10
2.2
SSE
10
1.7
SSE
10
1.6
SSE
9
1
S
9
2
S
16
1.8
S
12
1.7
S
11
1.5
S
10
Wave Graph
Metric surfscale
Energy kJ
497
403
1094
4322
6030
5587
6426
6366
3152
1862
855
932
516
409
169
1983
933
701
476
Wind (km/h)
20
W
25
WNW
30
W
30
WNW
35
SW
40
WSW
45
SW
30
SW
25
SW
5
WSW
10
WNW
10
SW
10
WNW
15
WNW
20
SW
10
WSW
5
WNW
5
NNE
10
WNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross-off
off
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
off
High Tide
5:04AM2.31m
5:28PM2.31m
5:44AM2.31m
6:07PM2.30m
6:28AM2.29m
6:51PM2.27m
7:19AM2.26m
7:44PM2.24m
8:18AM2.24m
8:46PM2.20m
9:26AM2.23m
9:55PM2.19m
Low Tide
11:00PM0.82m
11:23AM0.78m
11:40PM0.84m
12:06PM0.82m
00:24AM0.87m
12:51PM0.88m
1:12AM0.92m
1:42PM0.94m
2:07AM0.96m
2:38PM1.00m
3:08AM0.98m
3:41PM1.03m
rain showers
part cloud
part cloud
part cloud
rain showers
light rain
light rain
cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:00
8:00
7:58
7:56
7:54
7:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:32
5:35
5:36
5:37
5:37
5:38
 mm
1
12
2
3
2
Temp °C
10
11
12
11
7
7
5
7
7
6
5
6
5
7
8
8
7
8
6
Feels °C
5
5
5
4
-1
-3
-6
-1
-1
1
2
2
1
2
3
4
5
5
1
  • 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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