Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 am 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.6° 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 (07 Aug):

  • Morning surf: Morning surf (07 Aug, local time) - 1ft (0.3m), 6s period with E swell.
  • Afternoon surf: Afternoon surf (07 Aug, local time) - 0.5ft (0.1m), 16s period with E swell.
  • Evening surf: Evening surf (07 Aug, local time) - 0.5ft (0.1m), 15s period with NE swell.

The current surf forecast for Onemana at 10AM is: 0.3m 6s primary swell from a East direction and 0.1m 16s secondary swell from a East direction (forecast issued at 05:00am August 07). The wind direction is predicted to be glassy.

Time (NZST) & DateWave HeightWave Period
Morning (07 Aug)1ft (0.3m)6s
Afternoon (07 Aug)0.5ft (0.1m)16s
Evening (07 Aug)0.5ft (0.1m)15s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Sun night. Very mild (max 15°C on Sun morning, min 6°C on Fri morning). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
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)
0.3
ESE
6
0.3
ESE
6
0.3
E
6
0.1
E
16
0.1
E
16
0.1
NE
15
0.1
NE
15
0.1
NE
15
0.1
NE
15
0.1
NE
15
0.1
NE
15
0.1
NE
14
0.1
NE
14
0.2
ENE
13
0.2
E
13
0.2
E
13
0.2
E
13
0.2
E
13
0.2
E
13
0.2
E
13
1.5
N
6
1.9
NNW
7
1.2
N
7
Wave Graph
Metric surfscale
Energy kJ
10
8
7
5
5
9
9
8
8
9
9
8
7
18
14
14
14
14
14
13
173
326
134
Wind (km/h)
5
WSW
5
WSW
5
WSW
5
W
5
W
5
WSW
10
WSW
10
WSW
10
W
5
W
5
WNW
5
NNW
10
NW
5
NW
10
NNW
10
NNW
10
NNW
15
NNW
20
NNW
25
NNW
15
NNW
20
NNW
20
NNW
Wind State
cross-off
cross-off
cross-off
glassy
off
off
off
off
off
off
off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
00:25AM1.72m
1:04PM1.67m
1:21AM1.70m
2:04PM1.69m
2:22AM1.69m
3:08PM1.72m
Low Tide
6:51AM0.23m
7:15PM0.36m
7:46AM0.23m
8:15PM0.37m
8:46AM0.22m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:07
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:35
5:35
5:36
 mm
1
4
11
Temp °C
6
5
6
10
11
9
7
6
6
6
7
11
12
11
10
11
12
12
14
15
13
13
13
Feels °C
3
2
4
8
8
7
4
3
3
4
5
9
9
9
7
8
9
9
11
11
10
10
10
  • 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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