Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 am 10 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 (10 Sep):

  • Morning surf: Morning surf (10 Sep, local time) - 1.5ft (0.4m), 14s period with NE swell.
  • Afternoon surf: Afternoon surf (10 Sep, local time) - 1.5ft (0.4m), 14s period with NE swell.
  • Evening surf: Evening surf (10 Sep, local time) - 1.5ft (0.4m), 13s period with NE swell.

The current surf forecast for Onemana at 12PM is: 0.4m 14s primary swell from a Northeast direction and 0.5m 7s secondary swell from a Northeast direction (forecast issued at 05:00am September 10). The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (10 Sep)1.5ft (0.4m)14s
Afternoon (10 Sep)1.5ft (0.4m)14s
Evening (10 Sep)1.5ft (0.4m)13s

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Very mild (max 16°C on Thu morning, min 10°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the SW by Fri night).

Thursday
10
Friday
11
Saturday
12
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
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
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)
0.4
NE
8
0.4
NE
8
0.4
NE
14
0.4
NE
14
0.4
NE
14
0.4
NE
14
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
ENE
13
0.4
ENE
13
0.4
ENE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
0.4
NE
13
Wave Graph
Metric surfscale
Energy kJ
20
20
47
47
47
48
46
44
44
44
44
43
42
64
64
64
42
42
42
43
43
44
44
Wind (km/h)
10
W
10
W
5
WNW
10
NW
15
WNW
10
NW
5
NW
5
WSW
10
WSW
10
SSW
10
SSW
10
SSW
20
WSW
25
WSW
25
WSW
30
WSW
30
WSW
35
SW
30
SW
25
SW
20
WSW
20
W
25
WSW
Wind State
off
off
cross-off
cross-off
off
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
High Tide
5:22AM1.72m
5:53PM1.86m
6:18AM1.77m
6:44PM1.90m
7:10AM1.81m
7:32PM1.91m
Low Tide
11:36AM0.17m
00:13AM0.18m
12:31PM0.14m
1:04AM0.12m
1:22PM0.12m
clear
clear
part cloud
part cloud
cloud
cloud
clear
part cloud
cloud
rain showers
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:04
 mm
1
Temp °C
10
9
12
16
15
13
11
11
11
10
11
14
15
12
12
12
12
11
12
15
16
12
10
Feels °C
8
6
10
13
11
11
9
10
9
8
8
12
11
6
7
6
6
3
5
9
11
7
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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