Catlins River Mouth Surf Break

Lat Long: 46.48° S 169.72° E

Catlins River Mouth 48 hour detailed Surf Forecast

Issued: 11 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Catlins River Mouth sea temperature is
11.2° C
2.1° 

Catlins River Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Catlins River Mouth today (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.8m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 3.5ft (1.0m), 10s period with S swell.
  • Evening surf: Evening surf (21 Aug, local time) - 2.5ft (0.8m), 10s period with S swell.

The current surf forecast for Catlins River Mouth at 6AM is: 0.9m 15s primary swell from a South-southwest direction and 1.1m 11s secondary swell from a South-southwest direction (forecast issued at 11:00pm August 20). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (NZST) & DateWave HeightWave Period
Morning (21 Aug)2.5ft (0.8m)14s
Afternoon (21 Aug)3.5ft (1.0m)10s
Evening (21 Aug)2.5ft (0.8m)10s

Table - waves today at Catlins River Mouth. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 7mm), mostly falling on Sun morning. Very mild (max 13°C on Sat afternoon, min 5°C on Sun morning). Winds increasing (light winds from the NNW on Sat afternoon, near gales from the W by Sun morning).

Friday
21
Saturday
22
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
3
3
2
2
2
2
2
1
1
0
1
1
0
1
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)
1.7
SSW
15
1.6
SSW
15
1.5
SSW
15
0.9
SSW
15
0.8
SSW
14
1
SSW
10
1
S
10
0.9
S
10
0.8
S
10
0.7
S
10
0.6
S
10
0.6
S
10
0.4
SSW
18
0.4
SSW
19
0.5
SSW
16
0.6
SSW
16
0.6
SSW
17
Wave Graph
Metric surfscale
Energy kJ
1288
1136
983
334
264
218
200
158
125
96
80
69
109
139
153
214
237
Wind (km/h)
10
WNW
10
WNW
10
NW
15
NNW
15
NNW
15
NNW
15
NNW
15
NNW
15
N
10
NNW
15
NNW
15
NW
15
NNW
20
NNW
10
N
10
NNW
10
NNW
Wind State
off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
cross-off
cross-off
off
cross-off
High Tide
9:01PM2.11m
9:41AM2.12m
10:07PM2.08m
10:44AM2.10m
Low Tide
3:18AM1.16m
3:45PM1.24m
4:22AM1.17m
4:53PM1.24m
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
clear
cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
 mm
Temp °C
9
8
9
8
6
8
10
10
8
8
7
8
7
11
13
12
9
Feels °C
6
4
5
4
2
4
6
6
4
5
2
4
3
6
10
10
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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