Ruby Bay Surf Break

Lat Long: 41.21° S 173.09° E

Ruby Bay 48 hour detailed Surf Forecast

Issued: 5 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ruby Bay sea temperature is
11.6° C
0.8° 

Ruby Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Ruby Bay today (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 1.5ft (0.4m), 5s period with NE swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 1.5ft (0.4m), 6s period with N swell.
  • Evening surf: Evening surf (12 Aug, local time) - 2.5ft (0.8m), 7s period with N swell.

The current surf forecast for Ruby Bay at 9AM is: 0.4m 5s primary swell from a Northeast direction and 0.1m 7s secondary swell from a North direction, 0.1m 10s secondary swell from a North direction (forecast issued at 05:00am August 12). The wind direction is predicted to be glassy.

Time (NZST) & DateWave HeightWave Period
Morning (12 Aug)1.5ft (0.4m)5s
Afternoon (12 Aug)1.5ft (0.4m)6s
Evening (12 Aug)2.5ft (0.8m)7s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Thu morning. Very mild (max 16°C on Fri afternoon, min 8°C on Fri night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
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
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)
0.2
N
7
0.1
N
10
0.4
NE
5
0.4
NE
4
0.4
N
6
0.7
N
7
0.8
N
7
0.8
N
7
0.9
N
8
1
N
8
1.2
N
8
1.2
N
7
1
N
7
0.9
N
7
0.7
N
6
0.6
N
6
0.5
N
6
0.4
N
5
0.3
N
5
0.3
N
5
0.2
N
4
0.1
NW
19
0.1
NW
19
Wave Graph
Metric surfscale
Energy kJ
4
2
6
7
10
43
65
69
97
119
159
146
92
70
38
26
15
9
4
4
2
0
0
Wind (km/h)
5
SSW
5
SSW
0
SSW
5
NNE
5
NE
5
E
0
ENE
0
SE
0
SSW
0
S
0
W
0
WSW
0
NE
0
ESE
5
SW
5
SSW
5
SW
5
SW
5
SSW
0
SSE
5
NNE
0
NNE
5
SSW
Wind State
off
glassy
glassy
glassy
on
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
glassy
off
off
off
glassy
cross-on
glassy
glassy
High Tide
9:29AM3.89m
10:04PM4.25m
10:20AM4.07m
10:44PM4.38m
11:05AM4.18m
Low Tide
3:06AM0.82m
3:34PM0.87m
3:54AM0.61m
4:21PM0.69m
4:37AM0.49m
5:01PM0.60m
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:20
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:44
5:45
 mm
1
1
2
3
1
1
Temp °C
8
8
9
11
12
10
10
10
9
10
10
11
13
12
12
11
10
9
11
15
16
12
10
Feels °C
6
6
8
9
10
9
9
9
8
10
10
11
13
12
12
10
9
7
10
15
15
12
9
  • 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 Ruby Bay 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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