Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 pm 26 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 (27 Sep):

  • Morning surf: Morning surf (27 Sep, local time) - 1ft (0.3m), 12s period with ESE swell.
  • Afternoon surf: Afternoon surf (27 Sep, local time) - 0.5ft (0.2m), 15s period with E swell.
  • Evening surf: Evening surf (27 Sep, local time) - 3ft (0.9m), 7s period with NNW swell.

The current surf forecast for Onemana at 3AM is: 0.3m 12s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a Northeast direction (forecast issued at 05:00pm September 26). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (27 Sep)1ft (0.3m)12s
Afternoon (27 Sep)0.5ft (0.2m)15s
Evening (27 Sep)3ft (0.9m)7s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Sun afternoon. Very mild (max 17°C on Sun morning, min 8°C on Sun night). Mainly fresh winds.

Sat
26
Sunday
27
Monday
28
3 PM
6 PM
9 PM
12 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 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
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
13
0.3
ESE
13
0.3
ESE
12
0.3
ESE
12
0.3
ESE
12
0.3
ESE
12
0.3
ESE
12
0.2
E
14
1.2
NW
6
2
NW
7
0.9
NNW
7
0.8
NNW
8
0.6
NNW
8
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
ESE
12
0.2
ESE
12
0.2
E
12
Wave Graph
Metric surfscale
Energy kJ
33
32
31
30
29
28
28
16
109
347
86
87
54
34
33
31
30
15
11
Wind (km/h)
20
SW
20
WSW
15
WSW
20
W
20
WNW
20
WNW
25
WNW
30
WNW
30
WNW
25
WSW
25
WSW
15
WSW
15
W
15
WSW
20
WSW
25
W
25
WSW
20
WSW
20
W
Wind State
cross-off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
High Tide
6:24PM1.73m
6:48AM1.69m
7:06PM1.79m
7:32AM1.77m
7:48PM1.83m
Low Tide
00:42AM0.24m
12:58PM0.25m
1:25AM0.16m
1:44PM0.21m
cloud
clear
cloud
clear
cloud
light rain
part cloud
part cloud
part cloud
light rain
rain showers
clear
clear
cloud
clear
cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
6:58
—
—
—
—
—
—
5:56
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:15
—
—
—
—
—
—
—
7:15
—
—
—
—
—
—
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6:16
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 mm
—
—
—
—
—
1
—
—
—
2
1
—
—
—
—
—
—
—
—
Temp °C
16
14
13
13
13
14
14
17
17
12
10
9
8
10
12
14
15
12
10
Feels °C
11
10
10
10
9
11
10
12
11
7
5
4
4
6
7
8
9
6
6
  • 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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