Sponge bay Surf Break

Lat Long: 38.70° S 178.06° E

Sponge bay 48 hour detailed Surf Forecast

Issued: 5 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sponge bay sea temperature is
12.7° C
1.4° 

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 (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 3ft (0.9m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 3ft (0.9m), 9s period with SE swell.
  • Evening surf: Evening surf (13 Aug, local time) - 2ft (0.6m), 8s period with SE swell.

The current surf forecast for Sponge bay at 11AM is: 0.9m 9s primary swell from a Southeast direction (forecast issued at 05:00am August 13). An open ocean swell of 0.4m 5s is not directed at the surf break, a second open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (13 Aug)3ft (0.9m)9s
Afternoon (13 Aug)3ft (0.9m)9s
Evening (13 Aug)2ft (0.6m)8s

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


Short Range Forecast

Heavy rain (total 57mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri night, min 10°C on Thu morning). Winds increasing (calm on Fri night, strong winds from the SW by Sat night).

Thursday
13
Friday
14
Saturday
15
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
0
0
0
0
0
0
0
0
0
0
1
2
2
0
0
0
0
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)
1.1
SE
10
0.9
SE
9
0.9
SE
9
0.9
SE
9
0.9
SE
9
0.7
SE
9
0.6
SE
8
0.5
SE
8
0.5
SE
8
0.9
E
6
1.1
E
7
1.3
E
7
0.2
ESE
14
1.6
E
8
1.7
E
8
1.8
E
8
1.7
E
8
1.6
E
8
1.5
E
8
1.4
E
8
1.6
E
8
1.6
E
8
1.6
E
8
Wave Graph
Metric surfscale
Energy kJ
207
141
138
115
112
77
57
33
31
62
103
145
20
287
364
427
411
364
320
273
351
351
367
Wind (km/h)
15
NNW
10
NNW
10
N
10
NNE
15
NNE
25
NE
25
NE
20
NE
25
NE
25
NE
25
NE
25
ENE
30
ENE
25
ENE
30
NE
20
NE
10
NE
5
NNE
15
ESE
20
ESE
20
SE
20
S
20
S
Wind State
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-on
cross-on
on
on
High Tide
5:54AM1.85m
6:28PM2.00m
6:51AM1.92m
7:19PM2.07m
7:42AM1.98m
8:05PM2.10m
Low Tide
12:04PM0.45m
00:48AM0.54m
12:58PM0.43m
1:39AM0.49m
1:48PM0.42m
cloud
cloud
light rain
light rain
light rain
light rain
cloud
light rain
light rain
light rain
mod rain
mod rain
mod rain
mod rain
light rain
rain showers
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:28
5:29
5:30
 mm
1
1
1
2
1
2
4
6
6
7
7
4
1
1
3
1
1
2
Temp °C
9
10
10
11
12
13
13
13
13
13
13
13
13
13
14
14
13
13
13
13
13
13
13
Feels °C
6
7
8
9
9
9
9
10
9
9
9
9
8
9
9
11
12
13
11
10
10
10
9
  • 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.


Nearest locationNearest