Tangoio Flat Rock Surf Break

Lat Long: 39.35° S 176.92° E

Tangoio Flat Rock 48 hour detailed Surf Forecast

Issued: 5 pm 17 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 (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 3ft (0.9m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.1m), 9s period with SE swell.
  • Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.1m), 12s period with SE swell.

The current surf forecast for Tangoio Flat Rock at 12AM is: 1.0m 9s primary swell from a Southeast direction and 0.8m 10s secondary swell from a East direction (forecast issued at 05:00pm August 17). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (NZST) & DateWave HeightWave Period
Morning (18 Aug)3ft (0.9m)9s
Afternoon (18 Aug)3.5ft (1.1m)9s
Evening (18 Aug)3.5ft (1.1m)12s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Tue afternoon. Very mild (max 13°C on Thu morning, min 5°C on Mon night). Wind will be generally light.

Mon
17
Tuesday
18
Wednesday
19
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
3
2
2
2
2
0
0
0
0
0
1
0
0
1
1
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSE
9
2.5
SSE
9
1
SE
9
1
SE
9
1.1
SE
9
1
SE
9
0.9
SE
9
1.1
SE
9
1.1
SE
9
0.8
SSE
10
1.1
SE
12
1.3
SE
12
1.7
SSE
12
1
SSE
12
1.2
ESE
10
1.4
SE
9
3
S
11
2
S
11
1.3
S
14
Wave Graph
Metric surfscale
Energy kJ
1229
1094
173
159
179
155
132
188
196
121
349
440
723
265
246
343
1962
890
701
Wind (km/h)
20
SSW
15
SW
15
SW
15
WSW
15
WSW
15
WSW
20
SW
25
SW
25
SSW
25
SSW
25
SW
25
SW
25
SSW
20
SSW
20
SW
20
SSW
15
SW
15
SW
10
SW
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:20PM1.59m
9:48AM1.53m
10:10PM1.53m
10:37AM1.50m
Low Tide
3:41AM0.09m
4:04PM0.15m
4:29AM0.15m
4:54PM0.21m
cloud
cloud
part cloud
part cloud
clear
part cloud
cloud
clear
part cloud
light rain
rain showers
cloud
light rain
light rain
light rain
rain showers
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:35
5:36
5:37
 mm
2
1
1
1
1
1
Temp °C
10
8
6
5
5
6
9
12
11
7
7
6
5
6
6
8
9
9
9
Feels °C
5
3
2
0
0
2
3
6
5
1
0
0
-1
1
1
3
5
5
6
  • 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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