Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 pm 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.7° C
0.2° 

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 (30 Jul):

  • Afternoon surf: Afternoon surf (30 Jul, local time) - 2.5ft (0.7m), 12s period with E swell.
  • Evening surf: Evening surf (30 Jul, local time) - 2ft (0.6m), 11s period with E swell.

The current surf forecast for Onemana at 11PM is: 0.6m 11s primary swell from a East direction and 0.1m 11s secondary swell from a Northeast direction (forecast issued at 05:00pm July 30). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (30 Jul)--
Afternoon (30 Jul)2.5ft (0.7m)12s
Evening (30 Jul)2ft (0.6m)11s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu night. Very mild (max 14°C on Thu afternoon, min 5°C on Sat night). Wind will be generally light.

Thu
30
Friday
31
Saturday
1
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
1
2
2
2
2
1
1
1
1
1
1
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)
0.7
E
12
0.7
E
12
0.6
E
11
0.6
E
11
1.6
NNW
6
1.9
NNW
7
1.4
NNW
7
1.6
NNW
7
1.5
NNW
7
0.6
E
11
0.8
NNW
7
0.5
E
11
0.4
ESE
11
0.4
ESE
11
0.5
E
13
0.4
ESE
13
0.4
ESE
12
0.4
E
12
0.3
E
12
Wave Graph
Metric surfscale
Energy kJ
137
132
91
89
205
316
208
242
204
89
65
62
39
41
85
54
46
43
24
Wind (km/h)
20
NNW
15
NNW
20
NNW
25
NNW
25
NW
15
WNW
20
W
20
W
25
W
20
W
15
WSW
10
W
10
W
5
SW
5
SSW
10
SE
15
ESE
15
ESE
20
SE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
glassy
cross-on
on
cross-on
cross-on
High Tide
7:33PM1.70m
7:45AM1.60m
8:13PM1.74m
8:27AM1.62m
8:52PM1.76m
Low Tide
1:48AM0.38m
1:58PM0.26m
2:31AM0.33m
2:40PM0.25m
part cloud
clear
clear
cloud
light rain
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:28
5:29
5:30
 mm
2
5
Temp °C
14
12
11
12
13
12
12
13
13
11
11
9
8
8
10
12
11
10
10
Feels °C
10
9
7
7
9
9
9
9
8
7
7
6
5
6
8
9
7
5
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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