Onemana Surf Break

Lat Long: 37.15° S 175.88° E

Onemana 48 hour detailed Surf Forecast

Issued: 5 am 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onemana sea temperature is
14.8° C
0.4° 

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 (17 Jul):

  • Morning surf: Morning surf (17 Jul, local time) - 1.5ft (0.5m), 16s period with E swell.
  • Afternoon surf: Afternoon surf (17 Jul, local time) - 1.5ft (0.5m), 16s period with E swell.
  • Evening surf: Evening surf (17 Jul, local time) - 1.5ft (0.5m), 15s period with ESE swell.

The current surf forecast for Onemana at 10AM is: 0.5m 16s primary swell from a East direction and 0.1m 5s secondary swell from a Northwest direction (forecast issued at 05:00am July 17). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZST) & DateWave HeightWave Period
Morning (17 Jul)1.5ft (0.5m)16s
Afternoon (17 Jul)1.5ft (0.5m)16s
Evening (17 Jul)1.5ft (0.5m)15s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun morning, min 10°C on Fri night). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
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)
1
1
1
0
0
0
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
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)
0.4
ESE
17
0.4
ESE
17
0.5
E
16
0.5
E
16
0.5
E
16
0.5
E
16
0.5
ESE
15
0.5
ESE
15
0.5
E
14
0.5
E
14
0.4
ESE
14
0.4
ESE
14
0.4
ESE
14
0.4
ESE
14
0.3
ESE
14
0.3
ESE
14
0.3
ESE
14
0.3
ESE
14
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
Wave Graph
Metric surfscale
Energy kJ
100
95
139
134
129
124
128
123
107
106
69
69
68
66
37
38
39
38
34
34
34
34
33
Wind (km/h)
10
WSW
10
WSW
15
WSW
20
WSW
20
WSW
20
WSW
15
WSW
10
WSW
10
WSW
15
WSW
15
WSW
20
WSW
20
WSW
20
WSW
15
SW
20
W
20
WSW
20
SW
20
WSW
20
SW
15
SW
10
WSW
10
SW
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
8:37AM1.86m
9:09PM2.02m
9:31AM1.84m
10:00PM1.98m
10:25AM1.79m
Low Tide
2:37AM0.08m
2:53PM-0.00m
3:30AM0.07m
3:45PM0.04m
4:21AM0.09m
4:36PM0.11m
clear
clear
clear
clear
clear
clear
clear
clear
clear
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
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:19
5:20
 mm
Temp °C
10
10
11
13
14
11
10
10
11
11
11
13
14
11
10
10
12
12
12
15
15
12
12
Feels °C
8
8
8
9
10
7
7
7
8
8
8
9
10
7
6
6
8
7
8
11
12
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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