Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 pm 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.5° C
0.3° 

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 (04 Aug):

  • Morning surf: Morning surf (04 Aug, local time) - 0.5ft (0.2m), 12s period with ENE swell.
  • Afternoon surf: Afternoon surf (04 Aug, local time) - 0.5ft (0.2m), 12s period with ENE swell.
  • Evening surf: Evening surf (04 Aug, local time) - 2.5ft (0.8m), 4s period with SE swell.

The current surf forecast for Onemana at 2AM is: 0.2m 12s primary swell from a East-northeast direction and 0.1m 7s secondary swell from a Northeast direction (forecast issued at 05:00pm August 03). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (04 Aug)0.5ft (0.2m)12s
Afternoon (04 Aug)0.5ft (0.2m)12s
Evening (04 Aug)2.5ft (0.8m)4s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Mon afternoon, min 4°C on Tue night). Wind will be generally light.

Mon
3
Tuesday
4
Wednesday
5
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
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)
0.4
NE
13
0.2
ENE
13
0.2
ENE
13
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.2
ENE
12
0.8
SE
4
1
SE
5
1.1
SE
6
0.9
SE
6
1.2
SSE
5
0.5
SSE
5
0.7
SSE
5
0.2
ENE
12
0.2
ENE
11
Wave Graph
Metric surfscale
Energy kJ
42
16
16
15
15
15
15
15
15
14
24
46
67
50
75
14
22
13
12
Wind (km/h)
25
WSW
30
WSW
25
WSW
25
WSW
25
WSW
25
WSW
25
SW
25
SW
25
SW
15
SSE
25
SSE
20
S
15
SSW
15
SSW
15
SSW
15
SSW
10
SW
15
WSW
10
SW
Wind State
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
High Tide
10:09PM1.77m
10:33AM1.65m
10:51PM1.76m
11:19AM1.66m
Low Tide
4:32AM0.24m
4:44PM0.29m
5:15AM0.23m
5:30PM0.31m
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:31
5:32
 mm
Temp °C
15
12
11
11
11
11
11
14
13
11
7
6
4
4
5
8
10
8
8
Feels °C
10
6
6
5
6
6
5
8
7
7
1
0
-1
-1
0
3
6
3
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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