Dunedin - St Clair Surf Break

Lat Long: 45.91° S 170.50° E

Dunedin - St Clair 48 hour detailed Surf Forecast

Issued: 11 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Dunedin - St Clair sea temperature is
11.1° C
2.4° 

Dunedin - St Clair surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Dunedin - St Clair today (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 3.5ft (1.1m), 11s period with S 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) - 3ft (0.9m), 10s period with S swell.

The current surf forecast for Dunedin - St Clair at 5AM is: 1.1m 11s primary swell from a South direction and 0.3m 15s secondary swell from a South-southwest direction (forecast issued at 11:00pm August 20). The wind direction is predicted to be offshore and the swell rating is 2.

Time (NZST) & DateWave HeightWave Period
Morning (21 Aug)3.5ft (1.1m)11s
Afternoon (21 Aug)3.5ft (1.0m)10s
Evening (21 Aug)3ft (0.9m)10s

Table - waves today at Dunedin - St Clair. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 4mm), mostly falling on Sun morning. Very mild (max 15°C on Sat afternoon, min 6°C on Fri morning). Winds increasing (calm on Fri morning, strong winds 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
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
15
1.3
S
14
1
S
11
1.1
S
11
1.1
S
11
1
S
11
1
S
10
0.9
S
10
0.9
S
10
0.8
S
10
0.7
S
10
0.7
S
10
0.6
S
10
0.5
S
10
0.5
S
9
0.3
SSW
16
0.3
SSW
17
Wave Graph
Metric surfscale
Energy kJ
723
674
233
300
279
223
198
158
159
125
96
96
71
49
45
52
55
Wind (km/h)
10
WNW
10
WNW
10
NW
10
N
10
N
0
NW
5
NE
10
NNE
10
N
10
NW
15
NW
10
NW
10
NNW
10
NNW
10
NNE
20
N
15
NNW
Wind State
cross-off
cross-off
off
off
off
glassy
cross-off
cross-off
off
cross-off
off
off
off
off
cross-off
off
off
High Tide
10:23PM1.50m
10:51AM1.56m
11:14PM1.49m
11:40AM1.56m
Low Tide
4:12AM0.41m
4:49PM0.45m
5:09AM0.42m
5:48PM0.44m
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:55
 mm
Temp °C
8
8
7
7
6
9
11
10
10
7
7
10
8
13
15
13
12
Feels °C
4
5
4
4
3
7
9
7
6
3
3
6
4
10
12
8
8
  • 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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