Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 11 pm 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.2° C
0.0° 

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


How big are the waves at Onemana today (12 Jul):

  • Morning surf: Morning surf (12 Jul, local time) - 2.5ft (0.7m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (12 Jul, local time) - 2ft (0.6m), 9s period with E swell.
  • Evening surf: Evening surf (12 Jul, local time) - 1.5ft (0.5m), 9s period with E swell.

The current surf forecast for Onemana at 5AM is: 0.8m 9s primary swell from a East direction and 0.1m 12s secondary swell from a North direction, 0.5m 4s secondary swell from a Southeast direction (forecast issued at 11:00pm July 11). The wind direction is predicted to be cross-shore.

Time (NZST) & DateWave HeightWave Period
Morning (12 Jul)2.5ft (0.7m)9s
Afternoon (12 Jul)2ft (0.6m)9s
Evening (12 Jul)1.5ft (0.5m)9s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Mon night. Very mild (max 16°C on Tue afternoon, min 8°C on Sat night). Wind will be generally light.

Sunday
12
Monday
13
Tuesday
14
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
Rating
(10 max)
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
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)
0.9
ESE
10
0.8
E
9
0.8
E
9
0.8
E
9
0.7
ESE
9
0.7
ESE
9
0.6
E
9
0.6
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.4
E
10
0.4
E
10
0.4
E
10
0.4
E
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
9
0.2
E
9
1
N
6
Wave Graph
Metric surfscale
Energy kJ
154
113
110
110
90
90
61
60
41
41
40
38
30
30
30
30
19
20
20
20
19
17
7
64
Wind (km/h)
10
SSE
10
SSE
10
SSE
10
SSE
10
SSE
5
ESE
5
E
0
NE
0
NNW
0
NW
0
N
0
E
5
NE
10
NNE
15
NNE
10
N
15
NNW
15
NNW
15
WNW
15
NNW
15
NNW
15
NW
10
NW
5
WSW
Wind State
cross-on
cross
cross
cross
cross-on
cross-on
glassy
glassy
glassy
glassy
glassy
glassy
glassy
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
High Tide
3:44AM1.74m
4:28PM1.78m
4:45AM1.77m
5:28PM1.86m
5:46AM1.81m
Low Tide
9:37PM0.35m
10:06AM0.15m
10:40PM0.30m
11:07AM0.10m
11:43PM0.24m
12:06PM0.05m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
light rain
light rain
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:15
 mm
1
3
1
Temp °C
9
9
8
8
9
12
12
10
9
9
9
9
11
14
14
12
12
12
12
11
12
14
16
13
Feels °C
6
5
5
5
6
10
10
9
8
8
8
8
10
11
12
9
9
9
9
8
10
12
15
12
  • 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 Onemana 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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