Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 11 am 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
15.0° 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 (23 Jul):

  • Morning surf: Morning surf (23 Jul, local time) - 1ft (0.3m), 5s period with E swell.
  • Afternoon surf: Afternoon surf (23 Jul, local time) - 0.5ft (0.2m), 7s period with E swell.
  • Evening surf: Evening surf (23 Jul, local time) - 1.5ft (0.4m), 6s period with ENE swell.

The current surf forecast for Onemana at 3PM is: 0.2m 7s primary swell from a East direction and 0.2m 5s secondary swell from a East direction (forecast issued at 11:00am July 23). The wind direction is predicted to be glassy.

Time (NZST) & DateWave HeightWave Period
Morning (23 Jul)1ft (0.3m)5s
Afternoon (23 Jul)0.5ft (0.2m)7s
Evening (23 Jul)1.5ft (0.4m)6s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri night. Very mild (max 15°C on Fri afternoon, min 8°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the WSW by Sat afternoon).

Thu
23
Friday
24
Saturday
25
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
0
0
0
0
0
0
0
0
0
0
0
1
3
2
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
E
5
0.3
E
5
0.2
E
7
0.3
E
7
0.4
ENE
6
0.4
ENE
6
0.4
ENE
6
0.4
ENE
6
0.4
E
6
0.5
E
7
0.6
E
9
0.6
E
9
1.5
NNW
6
1.6
NNW
7
2.1
NNW
7
1.4
NNW
8
1.3
NNW
8
0.8
E
12
0.7
E
11
0.7
E
11
0.6
E
11
Wave Graph
Metric surfscale
Energy kJ
4
4
3
8
14
13
13
13
13
27
57
60
155
227
478
226
220
166
121
118
85
Wind (km/h)
5
S
0
SE
5
NE
5
NNW
5
NW
5
W
10
W
10
WNW
10
NNW
20
NNW
25
NNW
20
NW
25
NW
20
NW
25
WNW
20
WNW
30
WSW
35
WSW
35
WSW
35
WSW
25
WSW
Wind State
glassy
glassy
glassy
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
1:54PM1.57m
2:06AM1.56m
2:47PM1.54m
2:58AM1.52m
3:39PM1.53m
Low Tide
7:35AM0.32m
7:57PM0.47m
8:24AM0.37m
8:50PM0.52m
9:14AM0.41m
clear
clear
part cloud
part cloud
cloud
cloud
cloud
clear
cloud
clear
clear
light rain
light rain
cloud
clear
light rain
rain showers
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:23
5:23
 mm
1
3
1
1
1
Temp °C
10
12
13
11
11
11
10
10
11
14
15
13
13
13
12
9
10
11
11
10
10
Feels °C
9
11
12
9
9
9
8
8
9
10
10
9
8
9
7
4
4
4
3
2
4
  • 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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