Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 am 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.9° 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 (15 Jul):

  • Morning surf: Morning surf (15 Jul, local time) - 1ft (0.3m), 12s period with E swell.
  • Afternoon surf: Afternoon surf (15 Jul, local time) - 1ft (0.3m), 11s period with E swell.
  • Evening surf: Evening surf (15 Jul, local time) - 1ft (0.3m), 11s period with E swell.

The current surf forecast for Onemana at 10AM is: 0.3m 11s primary swell from a East direction and 0.4m 5s secondary swell from a Northeast direction (forecast issued at 05:00am July 15). The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (15 Jul)1ft (0.3m)12s
Afternoon (15 Jul)1ft (0.3m)11s
Evening (15 Jul)1ft (0.3m)11s

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


Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Sat
18
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
12 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
1
0
0
1
1
1
Swell
Height Map
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)
0.5
N
5
0.3
E
12
0.3
E
12
0.3
E
11
0.3
E
11
0.3
E
11
0.3
E
11
0.3
E
10
0.2
E
10
0.3
E
11
0.3
E
13
0.3
E
12
0.3
E
12
0.4
ESE
13
0.3
ESE
13
0.3
ESE
18
0.4
ESE
17
0.4
ESE
17
0.5
E
16
0.5
E
16
0.5
E
16
0.5
E
16
0.5
E
15
0.5
E
15
Wave Graph
Metric surfscale
Energy kJ
13
25
24
21
21
21
20
19
9
20
29
25
25
60
35
61
100
95
139
132
129
124
115
109
Wind (km/h)
5
WSW
5
WSW
5
WSW
5
SW
0
NW
5
NNW
10
W
10
W
10
W
10
W
10
W
5
W
10
W
10
W
15
W
20
SW
15
WSW
10
WSW
10
WSW
20
WSW
20
SW
15
WSW
10
W
10
W
Wind State
cross-off
off
off
glassy
glassy
glassy
off
off
off
off
off
off
off
off
off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
off
off
High Tide
6:45AM1.85m
7:23PM1.99m
7:42AM1.87m
8:17PM2.02m
8:37AM1.86m
9:09PM2.02m
Low Tide
00:43AM0.18m
1:04PM0.01m
1:41AM0.12m
1:59PM-0.01m
2:37AM0.08m
2:53PM-0.00m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
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>
7:26
7:26
7:26
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:16
5:17
5:17
5:19
 mm
Temp °C
11
11
11
14
15
14
12
12
11
11
12
14
16
13
12
12
10
10
12
13
14
11
9
10
Feels °C
10
10
10
14
15
14
11
11
10
10
11
13
14
11
10
8
7
8
10
10
10
8
7
8
  • 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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