Tangoio Flat Rock Surf Break

Lat Long: 39.35° S 176.92° E

Tangoio Flat Rock 48 hour detailed Surf Forecast

Issued: 5 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tangoio Flat Rock sea temperature is
12.1° C
1.5° 

Tangoio Flat Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Tangoio Flat Rock today (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 4.5ft (1.4m), 10s period with SE swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 7.5ft (2.3m), 11s period with S swell.
  • Evening surf: Evening surf (19 Aug, local time) - 4.5ft (1.3m), 9s period with ESE swell.

The current surf forecast for Tangoio Flat Rock at 9AM is: 1.4m 10s primary swell from a Southeast direction and 0.3m 15s secondary swell from a South-southeast direction (forecast issued at 05:00am August 19). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (19 Aug)4.5ft (1.4m)10s
Afternoon (19 Aug)7.5ft (2.3m)11s
Evening (19 Aug)4.5ft (1.3m)9s

Table - waves today at Tangoio Flat Rock. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 15°C on Fri afternoon, min 5°C on Wed morning). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
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
1
1
0
2
4
2
2
1
1
3
2
2
1
1
1
1
1
2
1
0
1
1
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)
1.7
SSE
11
1.2
SE
9
1.4
SE
10
1.4
SE
9
2.3
S
11
1.9
S
10
1.3
ESE
9
1.3
ESE
9
1.1
ESE
9
1
ESE
9
1.7
S
8
1.8
S
8
1.9
S
8
1.7
S
8
0.8
ESE
9
0.8
ESE
9
0.7
SE
9
0.7
ESE
9
0.5
S
16
0.7
S
16
0.7
ESE
10
0.6
S
16
0.5
ESE
10
Wave Graph
Metric surfscale
Energy kJ
777
231
357
335
1265
789
282
255
194
154
382
427
476
372
94
96
77
67
133
252
88
183
55
Wind (km/h)
30
SSW
25
SW
20
SW
20
SSW
20
SSW
10
SSW
10
SW
10
SW
15
SW
10
WSW
10
WSW
5
S
10
ESE
5
ESE
5
NNW
5
NW
5
WNW
5
NW
5
NW
5
ENE
10
ENE
10
NNE
10
WNW
Wind State
cross
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
on
glassy
off
off
off
glassy
cross-on
cross-on
cross
off
High Tide
10:37AM1.50m
10:59PM1.46m
11:26AM1.46m
11:47PM1.41m
12:14PM1.43m
Low Tide
4:29AM0.15m
4:54PM0.21m
5:16AM0.21m
5:42PM0.26m
6:02AM0.26m
6:30PM0.31m
light rain
light rain
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
 mm
1
1
Temp °C
6
6
5
9
10
8
8
9
9
8
10
13
13
9
8
7
7
7
10
14
15
12
10
Feels °C
-1
0
-1
3
5
4
4
6
5
5
6
10
10
7
6
5
4
4
8
11
12
10
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 

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