Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.6°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 (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 1.5ft (0.4m), 6s period with NNW swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 0.5ft (0.2m), 11s period with ENE swell.
  • Evening surf: Evening surf (05 Sep, local time) - 0.5ft (0.2m), 10s period with ENE swell.

The current surf forecast for Onemana at 10AM is: 0.2m 10s primary swell from a East-northeast direction and 0.3m 6s secondary swell from a North-northwest direction (forecast issued at 05:00am September 05). The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (05 Sep)1.5ft (0.4m)6s
Afternoon (05 Sep)0.5ft (0.2m)11s
Evening (05 Sep)0.5ft (0.2m)10s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Mon morning. Very mild (max 17°C on Sat afternoon, min 10°C on Sat night). Wind will be generally light.

Saturday
5
Sunday
6
Monday
7
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
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)
0.6
NNW
7
0.5
N
7
0.4
NNW
6
0.2
ENE
11
0.2
ENE
11
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
0.2
ENE
9
1.2
NNW
6
1.3
NNW
6
1.6
N
6
2.5
NNW
7
1.5
N
8
1.3
N
8
1.1
N
8
Wave Graph
Metric surfscale
Energy kJ
36
23
13
11
11
10
10
10
10
9
9
9
8
8
8
9
112
130
200
603
253
198
133
Wind (km/h)
15
WSW
15
WSW
20
WSW
15
WSW
20
WSW
15
WSW
15
W
10
W
10
WNW
10
W
10
WNW
15
NW
15
NW
15
NNW
15
NNW
15
NNW
15
NNW
20
NNW
25
NNW
25
NW
15
NNW
10
NNW
10
W
Wind State
cross-off
off
off
off
cross-off
off
off
off
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
off
High Tide
00:07AM1.72m
12:46PM1.72m
1:05AM1.68m
1:48PM1.71m
2:09AM1.65m
2:53PM1.72m
Low Tide
6:30AM0.21m
7:01PM0.34m
7:28AM0.23m
8:03PM0.36m
8:30AM0.25m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
clear
cloud
cloud
clear
cloud
light rain
cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:58
5:59
6:00
 mm
2
Temp °C
11
10
12
16
17
13
11
10
10
10
13
16
16
14
13
13
15
15
17
15
15
13
12
Feels °C
8
7
8
12
13
9
8
8
7
8
11
13
12
11
10
10
13
12
13
11
12
11
11
  • 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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