Catlins River Mouth surfForecast / Catlins / New Zealand

information circle16 Day Weather and Surf, issued 5 am Saturday 30 May 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Catlins River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Catlins River Mouth sea temperature is
12.4° C
(Which is 2.4°C warmer than normal for this time of year)

Catlins River Mouth surf forecast from 29 May 2026:

  • Best quality surf: Saturday 30 May, 12PM (local time) - 4ft (1.2m), 12s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 30 May, 12PM (local time) - 4ft (1.2m), 12s period, SSW swell with 419 kJ wave energy.
  • Next surfable swell (1★+): Saturday 30 May, 12PM (local time) - 4ft (1.2m), 12s 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 Saturday (May 30) at 12PM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.6m and 9s. Another secondary swell of 0.9m and 5s 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 1.2m 12s and forecast to arrive on Saturday (May 30) 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 1.7m 7s period and expected on Sunday (May 31) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 30th May)4ft (1.2m) 12s
Best Surf12PM (Sat 30th May)4ft (1.2m) 12s
Most Powerful12PM (Sat 30th May)4ft (1.2m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Mon night. Very mild (max 16°C on Sun afternoon, min 7°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
1
1
0
0
1
1
1
2
1
0
1
1
0
2
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
SSW
12
0.9
SSW
12
0.7
SW
12
0.5
SW
12
0.9
ENE
7
1
ENE
9
0.9
ENE
9
0.7
ENE
8
0.7
ENE
9
0.9
ENE
10
0.8
ENE
9
1
ENE
10
0.9
ENE
10
0.9
ENE
11
0.8
ENE
11
0.6
SSW
13
0.6
SSW
13
1.7
ENE
7
1.1
E
8
1.1
E
8
1
E
9
Wave Graph
Metric surfscale
Energy kJ
619
255
154
73
86
141
111
72
82
140
94
198
146
161
128
114
111
285
157
169
158
Wind (km/h)
5
NNE
10
NE
10
N
10
N
10
N
0
SE
15
ENE
10
SSW
10
WSW
10
NW
0
WSW
0
S
5
S
5
E
10
NNE
10
NNE
10
NE
5
NW
10
NW
5
N
5
NNW
cross-off
cross
cross-off
cross-off
cross-off
glassy
cross
cross
cross-off
off
glassy
glassy
glassy
cross-on
cross-off
cross-off
cross
glassy
off
cross-off
glassy
High Tide
2:26PM2.33m
2:42AM2.30m
3:06PM2.32m
3:19AM2.28m
3:45PM2.30m
3:55AM2.24m
4:23PM2.26m
4:32AM2.20m
5:02PM2.22m
5:10AM2.16m
5:41PM2.18m
5:51AM2.12m
6:22PM2.15m
Low Tide
8:38PM1.03m
8:55AM0.97m
9:17PM1.04m
9:34AM0.97m
9:54PM1.05m
10:11AM0.97m
10:32PM1.05m
10:50AM0.98m
11:09PM1.05m
11:30AM0.99m
11:50PM1.06m
12:14PM1.00m
00:33AM1.06m
cloud
part cloud
part cloud
part cloud
cloud
light rain
cloud
cloud
heavy rain
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:11
8:11
8:12
8:14
8:15
8:15
8:17
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:04
5:04
5:02
5:02
5:01
5:01
5:00
4
11
Temp °C
9
11
12
14
16
14
12
13
13
13
14
11
12
12
10
10
11
11
13
14
11
6
8
8
12
14
13
10
12
13
12
14
11
12
11
8
7
8
8
11
12
9
Swell 1
Height (m)
Direction
Period (s)
1.5
SSW
12
0.9
SSW
12
0.7
SW
12
0.6
S
8
0.9
ENE
7
1
ENE
9
0.9
ENE
9
0.7
ENE
8
0.7
ENE
9
0.9
ENE
10
0.8
ENE
9
1
ENE
10
0.9
ENE
10
0.9
ENE
11
0.8
ENE
11
0.7
ENE
10
0.6
SSW
13
1.4
ENE
7
1.1
E
8
1.1
E
8
1
E
9
Energy kJ
619
255
154
51
86
141
111
72
82
140
94
198
146
161
128
88
111
191
157
169
158
Swell 2
Height (m)
Direction
Period (s)
0.3
ENE
5
0.8
S
8
0.7
S
9
0.5
E
6
0.4
SSW
12
0.4
SSW
13
0.5
SW
13
0.4
SSW
13
0.4
SW
12
0.4
SSW
12
0.4
SSW
11
0.4
SSW
12
0.5
SSW
11
0.6
SSW
11
0.5
SW
10
0.6
SSW
13
0.1
S
8
0.5
S
10
0.5
S
10
0.6
S
11
0.5
S
11
Energy kJ
4
90
76
18
60
68
78
64
36
53
50
56
68
75
49
114
1
46
52
86
58
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.4
ENE
5
0.5
ENE
6
0.5
SW
12
0.4
S
8
0.2
S
8
0.1
SW
5
0.1
SW
5
0.1
SW
5
0.1
SW
4
0.4
SSW
8
0.3
SW
5
0.2
SSW
16
0.3
SSW
14
0.2
S
8
0.1
E
14
0.4
SW
13
0.4
SW
12
0.3
SW
12
0.3
WSW
6
Energy kJ
2
11
19
73
22
5
1
1
1
1
24
4
24
41
5
4
40
37
22
8
Wind waves
Height (m)
Direction
Period (s)
0.8
NE
5
0.9
NE
5
0.9
ENE
6
1.7
NE
7
0.3
WSW
5
0.4
SW
5
1.1
NE
10
1.2
ENE
5
1.7
ENE
7
0.6
WNW
4
Energy kJ
31
47
69
301
5
7
225
74
285
8
Nearest Offshore or Glassy
Rating
(10 max)
2
3
1
1
1
1
2
1
1
1
1
2
1
2
1
1
2
2
1
2
1
Distance (km)
0
15
0
0
0
0
15
8
0
0
0
0
0
3
0
0
15
0
0
0
0
Best forecast wave conditions in Catlins
Rating
(10 max)
4
3
2
2
2
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
3
2
4
4
2
4
4
4
4
4
4
4
3
3
3
2
3
3
2
2
Header Global
Rating
(10 max)
5
5
5
7
7
6
5
5
4
4
5
4
4
5
5
5
5
5
5
5
5
  • 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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