Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 pm 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.3°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 (25 Sep):

  • Afternoon surf: Afternoon surf (25 Sep, local time) - 0.5ft (0.2m), 13s period with ESE swell.
  • Evening surf: Evening surf (25 Sep, local time) - 1ft (0.3m), 12s period with ESE swell.

The current surf forecast for Onemana at 10PM is: 0.3m 12s primary swell from a East-southeast direction and 0.2m 14s secondary swell from a East direction (forecast issued at 05:00pm September 25). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (25 Sep)--
Afternoon (25 Sep)0.5ft (0.2m)13s
Evening (25 Sep)1ft (0.3m)12s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 17°C on Sun morning, min 8°C on Sun night). Mainly fresh winds.

Fri
25
Saturday
26
Sunday
27
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
0
1
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
Wave
Height (m)
Direction
Period (s)
0.2
ESE
13
0.2
E
15
0.3
ESE
12
0.3
ESE
12
0.3
ESE
13
0.4
ESE
13
0.3
E
13
0.3
E
13
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
15
1.3
NNW
6
1.4
NNW
6
1
NNW
7
Wave Graph
Metric surfscale
Energy kJ
17
17
28
28
32
58
31
30
33
32
31
30
29
28
28
17
124
145
108
Wind (km/h)
20
WSW
25
WSW
20
WSW
15
WSW
10
WSW
10
W
15
WSW
20
WSW
15
W
20
WSW
15
W
20
W
20
WNW
20
WNW
25
WNW
30
WNW
30
WNW
25
WSW
25
WSW
Wind State
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
5:41PM1.66m
6:04AM1.61m
6:24PM1.73m
6:48AM1.69m
7:06PM1.79m
Low Tide
11:58PM0.33m
12:13PM0.31m
00:42AM0.24m
12:58PM0.25m
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
rain showers
light rain
rain showers
part cloud
cloud
light rain
light rain
part cloud
part cloud
part cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
6:00
—
—
—
—
—
—
—
6:58
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:14
—
—
—
—
—
—
—
6:15
—
—
—
—
—
—
—
7:15
—
 mm
—
—
—
—
—
—
—
1
2
3
—
—
1
1
—
—
—
1
—
Temp °C
15
13
11
10
10
10
13
14
12
12
12
13
13
14
14
17
17
11
10
Feels °C
11
8
7
7
7
7
10
10
10
8
9
10
9
11
10
12
12
6
5
  • 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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