Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 11 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.0°C
0.4° 

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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 1ft (0.3m), 12s period with NE swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 1ft (0.3m), 12s period with NE swell.
  • Evening surf: Evening surf (14 Sep, local time) - 1ft (0.3m), 12s period with NE swell.

The current surf forecast for Onemana at 5PM is: 0.3m 12s primary swell from a Northeast direction and 0.3m 4s secondary swell from a East direction (forecast issued at 11:00am September 14). The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (14 Sep)1ft (0.3m)12s
Afternoon (14 Sep)1ft (0.3m)12s
Evening (14 Sep)1ft (0.3m)12s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Mon morning, min 8°C on Tue night). Wind will be generally light.

Mon
14
Tuesday
15
Wednesday
16
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
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
12
0.3
NE
11
0.2
ENE
13
0.3
NE
11
0.3
NE
11
0.2
ENE
13
0.2
ENE
13
0.2
ENE
13
0.4
NE
13
0.4
NE
13
0.4
NE
12
0.2
ENE
12
0.2
ENE
12
0.3
ENE
12
Wave Graph
Metric surfscale
Energy kJ
23
23
23
23
23
23
23
21
20
18
20
20
17
17
17
42
41
40
15
15
29
Wind (km/h)
10
SW
10
SW
10
SW
15
SW
15
WSW
10
WSW
10
WSW
10
SW
5
SW
5
ESE
5
N
5
NW
15
WSW
10
WSW
10
WSW
10
WSW
10
W
10
WNW
15
WSW
10
W
10
WNW
Wind State
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-off
off
off
off
cross-off
off
off
off
off
cross-off
High Tide
8:45AM1.83m
9:02PM1.85m
9:29AM1.81m
9:45PM1.79m
10:13AM1.76m
Low Tide
2:56PM0.16m
3:20AM0.11m
3:41PM0.22m
4:02AM0.16m
4:25PM0.28m
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:05
6:06
6:07
 mm
Temp °C
11
16
16
15
11
10
9
9
12
14
15
14
10
9
8
8
12
15
16
14
11
Feels °C
9
14
14
12
8
7
6
7
11
12
13
12
7
6
5
5
10
13
12
11
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 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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