Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef 48 hour detailed Surf Forecast

Issued: 7 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
14.0° C
1.7° 

Nine Mile Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Nine Mile Reef today (22 Aug):

  • Morning surf: Morning surf (22 Aug, local time) - 4.5ft (1.3m), 11s period with SSW swell.
  • Afternoon surf: Afternoon surf (22 Aug, local time) - 3.5ft (1.0m), 11s period with SSW swell.
  • Evening surf: Evening surf (22 Aug, local time) - 4.5ft (1.4m), 11s period with SW swell.

The current surf forecast for Nine Mile Reef at 2AM is: 1.2m 11s primary swell from a South-southwest direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 07:00pm August 21). The wind direction is predicted to be glassy and the swell rating is 3.

Time (SAST) & DateWave HeightWave Period
Morning (22 Aug)4.5ft (1.3m)11s
Afternoon (22 Aug)3.5ft (1.0m)11s
Evening (22 Aug)4.5ft (1.4m)11s

Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 18°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
2
3
2
3
2
2
2
2
3
3
2
2
1
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
11
1.2
SSW
11
1.4
SSW
11
1.2
SSW
11
1.1
SSW
10
1.3
SSW
11
1.1
SSW
11
1
SSW
11
1.1
SW
12
1.4
SW
11
1.4
SW
11
1.3
WSW
14
1.3
SW
12
1.4
SW
13
1.3
SW
13
1.3
SW
13
1.3
SW
13
1.2
SW
12
1.2
SW
12
Wave Graph
Metric surfscale
Energy kJ
317
311
444
322
270
346
291
256
314
463
485
630
448
653
520
512
563
416
396
Wind (km/h)
10
S
0
NNW
5
SSW
5
SW
5
W
10
N
15
NNW
15
NW
10
WNW
5
WNW
0
NE
5
S
10
SSE
5
SE
10
S
15
S
15
S
10
S
10
S
Wind State
on
glassy
cross-on
glassy
cross
off
cross-off
cross-off
cross-off
cross-off
glassy
on
cross-on
cross-on
on
on
on
on
on
High Tide
10:23PM0.99m
11:56AM0.97m
00:07AM1.04m
1:00PM1.07m
Low Tide
3:47PM0.72m
5:33AM0.63m
6:08PM0.67m
6:47AM0.53m
7:08PM0.57m
clear
clear
cloud
part cloud
cloud
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:19
6:19
6:20
 mm
Temp °C
18
17
14
13
13
13
16
18
16
16
15
14
13
13
14
15
14
13
13
Feels °C
17
17
14
13
13
12
13
15
14
16
16
14
12
13
12
12
12
11
11
  • 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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