Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 12 am 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.2°C
0.3° 

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 (28 Sep):

  • Morning surf: Morning surf (28 Sep, local time) - 1ft (0.3m), 13s period with ESE swell.
  • Afternoon surf: Afternoon surf (28 Sep, local time) - 1ft (0.3m), 12s period with ESE swell.
  • Evening surf: Evening surf (28 Sep, local time) - 0.5ft (0.2m), 12s period with ESE swell.

The current surf forecast for Onemana at 4AM is: 0.6m 8s primary swell from a North-northwest direction and 0.3m 13s secondary swell from a East-southeast direction (forecast issued at 12:00am September 28). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZDT) & DateWave HeightWave Period
Morning (28 Sep)1ft (0.3m)13s
Afternoon (28 Sep)1ft (0.3m)12s
Evening (28 Sep)0.5ft (0.2m)12s

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


Short Range Forecast

Some drizzle, heaviest during Sun night. Very mild (max 16°C on Tue afternoon, min 8°C on Sun night). Wind will be generally light.

Monday
28
Tuesday
29
Wednesday
30
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NNW
8
0.6
NNW
8
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
ESE
12
0.3
ESE
12
0.2
ESE
12
0.2
E
12
0.2
E
12
0.2
E
12
0.2
E
12
0.2
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
12
0.1
E
11
0.1
E
11
0.1
E
11
0.1
E
11
Wave Graph
Metric surfscale
Energy kJ
87
54
34
33
31
30
29
14
11
11
10
11
11
3
3
4
4
4
4
4
4
3
3
3
Wind (km/h)
20
WSW
15
WSW
15
WSW
20
WSW
25
WSW
25
WSW
25
WSW
20
W
20
W
15
W
15
WSW
20
WSW
20
SW
20
SW
20
WSW
15
WSW
15
WSW
10
WSW
5
WSW
5
SW
5
NE
10
N
5
NNW
5
W
Wind State
cross-off
off
off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
glassy
cross-on
cross
cross-off
glassy
High Tide
8:32AM1.77m
8:48PM1.83m
9:16AM1.83m
9:32PM1.86m
10:02AM1.86m
Low Tide
2:25AM0.16m
2:44PM0.21m
3:08AM0.11m
3:29PM0.18m
3:52AM0.08m
4:16PM0.18m
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:58
—
—
—
—
—
—
—
6:56
—
—
—
—
—
—
—
6:54
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:16
—
—
—
—
—
—
—
7:16
—
—
—
—
—
—
—
7:17
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
9
8
9
13
14
14
13
10
11
10
10
13
15
16
14
11
10
9
9
12
15
15
14
14
Feels °C
4
4
5
7
8
8
7
6
7
6
7
9
10
11
10
7
7
7
7
11
13
12
12
13
  • 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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