Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 pm 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.6° 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 (01 Aug):

  • Morning surf: Morning surf (01 Aug, local time) - 1.5ft (0.5m), 13s period with E swell.
  • Afternoon surf: Afternoon surf (01 Aug, local time) - 1.5ft (0.4m), 12s period with ESE swell.
  • Evening surf: Evening surf (01 Aug, local time) - 3ft (0.9m), 4s period with SE swell.

The current surf forecast for Onemana at 5AM is: 0.4m 11s primary swell from a East-southeast direction and 0.5m 7s secondary swell from a North direction (forecast issued at 05:00pm July 31). The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (01 Aug)1.5ft (0.5m)13s
Afternoon (01 Aug)1.5ft (0.4m)12s
Evening (01 Aug)3ft (0.9m)4s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Mon morning, min 5°C on Sat night). Wind will be generally light.

Fri
31
Saturday
1
Sunday
2
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)
2
2
1
1
1
1
0
0
0
0
0
0
0
1
0
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)
1.5
NNW
7
1.4
NNW
7
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
0.9
SE
4
1
SE
5
0.9
SE
5
0.9
SE
5
0.7
ESE
5
0.2
ENE
14
0.2
ENE
14
0.2
ENE
14
0.2
ENE
14
Wave Graph
Metric surfscale
Energy kJ
204
175
63
62
39
41
85
54
46
43
29
45
36
38
23
21
20
19
19
Wind (km/h)
20
W
20
W
15
W
10
W
10
W
10
SW
5
SSE
20
SE
20
ESE
20
ESE
25
SE
20
SSE
15
SSE
10
SSW
10
SW
5
SW
15
SW
10
WSW
10
W
Wind State
off
off
off
off
off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
8:13PM1.74m
8:27AM1.62m
8:52PM1.76m
9:08AM1.63m
Low Tide
2:31AM0.33m
2:40PM0.25m
3:12AM0.29m
3:20PM0.25m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:30
5:30
 mm
Temp °C
14
12
10
9
8
8
10
12
11
11
9
7
6
5
6
10
11
9
8
Feels °C
10
8
7
6
5
5
8
7
6
5
3
1
1
1
2
7
6
6
5
  • 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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