Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 11 pm 12 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.1° C
0.1° 

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 (13 Jul):

  • Morning surf: Morning surf (13 Jul, local time) - 1.5ft (0.4m), 9s period with E swell.
  • Afternoon surf: Afternoon surf (13 Jul, local time) - 1.5ft (0.4m), 10s period with ESE swell.
  • Evening surf: Evening surf (13 Jul, local time) - 2.5ft (0.8m), 4s period with N swell.

The current surf forecast for Onemana at 5AM is: 0.5m 9s primary swell from a East direction and 0.1m 10s secondary swell from a Northeast direction (forecast issued at 11:00pm July 12). The wind direction is predicted to be glassy.

Time (NZST) & DateWave HeightWave Period
Morning (13 Jul)1.5ft (0.4m)9s
Afternoon (13 Jul)1.5ft (0.4m)10s
Evening (13 Jul)2.5ft (0.8m)4s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Tue afternoon, min 9°C on Sun night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.4
E
9
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
0.8
N
4
0.9
N
5
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.2
E
9
0.2
ESE
9
1
N
6
0.9
N
6
0.8
N
6
0.6
N
6
0.3
E
12
0.3
E
12
0.3
E
11
0.3
E
11
0.3
E
11
Wave Graph
Metric surfscale
Energy kJ
42
41
40
39
24
31
31
18
23
35
20
20
19
7
9
66
54
43
24
25
24
21
21
21
Wind (km/h)
0
E
0
N
0
ESE
5
ESE
5
NE
15
NNE
15
N
15
NNW
20
NNW
15
NNW
15
NW
15
NW
15
NNW
10
NW
10
NW
5
WNW
5
W
10
W
5
WSW
5
W
5
WSW
5
WNW
5
W
5
WNW
Wind State
glassy
glassy
glassy
glassy
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
glassy
off
glassy
off
High Tide
4:45AM1.77m
5:28PM1.86m
5:46AM1.81m
6:27PM1.94m
6:45AM1.85m
Low Tide
10:40PM0.30m
11:07AM0.10m
11:43PM0.24m
12:06PM0.05m
00:43AM0.18m
1:04PM0.01m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:26
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:16
 mm
Temp °C
9
9
10
10
11
14
14
13
13
12
12
11
13
15
16
14
13
12
11
11
12
15
16
14
Feels °C
8
8
9
8
9
11
11
10
10
10
9
8
10
13
14
13
12
11
10
10
11
14
16
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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