Sponge bay Surf Break

Lat Long: 38.70° S 178.06° E

Sponge bay 48 hour detailed Surf Forecast

Issued: 5 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sponge bay sea temperature is
12.8°C
1.1° 

Sponge bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Sponge bay today (29 Aug):

  • Morning surf: Morning surf (29 Aug, local time) - 2ft (0.6m), 12s period with SE swell.
  • Afternoon surf: Afternoon surf (29 Aug, local time) - 2ft (0.6m), 12s period with SE swell.
  • Evening surf: Evening surf (29 Aug, local time) - 2ft (0.6m), 11s period with SE swell.

The current surf forecast for Sponge bay at 9AM is: 0.6m 12s primary swell from a Southeast direction (forecast issued at 05:00am August 29). An open ocean swell of 0.4m 6s is not directed at the surf break, a second open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (29 Aug)2ft (0.6m)12s
Afternoon (29 Aug)2ft (0.6m)12s
Evening (29 Aug)2ft (0.6m)11s

Table - waves today at Sponge bay. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 4mm), mostly falling on Sat night. Very mild (max 18°C on Sat morning, min 12°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the WNW by Mon night).

Saturday
29
Sunday
30
Monday
31
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
1
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
2
0
3
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SE
12
0.7
SE
12
0.6
SE
12
0.6
SSE
12
0.6
SE
12
0.6
SE
11
0.6
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.4
SSE
10
0.4
SE
10
0.4
SSE
10
0.4
SE
10
0.4
SSE
13
0.5
SSE
18
0.6
SSE
17
2.1
SSW
9
1.2
SSE
9
1.5
SSE
12
1.6
SSE
13
Wave Graph
Metric surfscale
Energy kJ
154
149
110
88
106
103
101
60
60
59
57
56
42
27
41
27
64
180
219
645
231
711
812
Wind (km/h)
15
NNE
15
N
15
N
15
N
10
NNE
10
NNW
10
N
10
N
10
NNW
10
SW
5
SSW
10
SSE
5
ESE
15
N
20
WNW
20
WNW
25
WNW
15
WSW
15
SSW
10
ESE
15
E
5
NNE
35
WNW
Wind State
off
off
off
off
off
off
off
off
off
cross-on
glassy
cross-on
cross
off
cross-off
cross-off
cross-off
cross-on
on
cross
cross
cross-off
cross-off
High Tide
6:45AM1.86m
7:10PM1.96m
7:25AM1.92m
7:46PM2.01m
8:06AM1.96m
8:24PM2.02m
Low Tide
00:46AM0.66m
12:50PM0.58m
1:26AM0.59m
1:30PM0.53m
2:04AM0.52m
2:10PM0.50m
cloud
cloud
cloud
cloud
cloud
light rain
cloud
light rain
light rain
cloud
clear
clear
clear
clear
cloud
clear
clear
clear
clear
part cloud
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:43
5:44
 mm
1
1
2
Temp °C
13
14
15
18
15
14
13
13
12
13
13
14
15
13
13
13
13
12
12
13
13
13
13
Feels °C
10
12
12
15
13
13
12
12
10
12
13
12
13
10
9
8
7
8
8
9
9
11
5
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sponge bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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