Nine Mile Reef Surf Break

Lat Long: 34.07° S 18.66° E

Nine Mile Reef 48 hour detailed Surf Forecast

Issued: 1 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Nine Mile Reef sea temperature is
15.3° C
0.2° 

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 (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 5.5ft (1.7m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 6ft (1.9m), 14s period with SSW swell.
  • Evening surf: Evening surf (21 Jul, local time) - 6ft (1.8m), 13s period with SW swell.

The current surf forecast for Nine Mile Reef at 7AM is: 1.4m 14s primary swell from a South-southwest direction and 0.3m 12s secondary swell from a Southeast direction (forecast issued at 01:00am July 21). The wind direction is predicted to be offshore and the swell rating is 3.

Time (SAST) & DateWave HeightWave Period
Morning (21 Jul)5.5ft (1.7m)14s
Afternoon (21 Jul)6ft (1.9m)14s
Evening (21 Jul)6ft (1.8m)13s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
3
4
4
3
2
3
2
3
3
3
3
3
3
3
3
3
3
2
3
3
4
!
!
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)
0.7
SSW
16
0.9
SSW
15
1.7
SSW
14
1.9
SSW
14
2
SSW
14
2
SSW
13
1.9
SSW
13
1.7
SSW
13
1.6
SW
13
1.5
SW
12
1.4
SW
12
1.4
SW
12
1.4
SW
12
1.3
SSW
11
1.3
SSW
11
1.2
SSW
12
1.4
SSW
12
1.4
SW
12
1.4
SW
12
1.5
SW
11
1.5
SW
11
1.7
SSW
13
3
SSW
18
3
SSW
17
Wave Graph
Metric surfscale
Energy kJ
259
381
1114
1376
1556
1370
1198
904
778
667
607
578
568
426
426
419
536
505
488
563
573
890
4988
5921
Wind (km/h)
10
N
5
N
5
NNE
0
WNW
10
SSW
10
S
10
SSE
5
SSE
5
S
5
N
10
N
10
NNW
15
NW
15
NW
10
N
15
N
20
N
20
N
20
N
20
N
20
N
15
N
10
N
5
NNW
Wind State
off
off
cross-off
glassy
on
on
on
on
glassy
glassy
off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
High Tide
8:12AM1.08m
8:35PM1.21m
9:19AM1.01m
9:42PM1.12m
10:47AM0.98m
Low Tide
2:13AM0.44m
2:07PM0.51m
3:13AM0.52m
3:11PM0.61m
4:33AM0.56m
4:45PM0.65m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:46
7:45
7:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:59
 mm
Temp °C
13
12
12
14
15
14
13
13
12
12
11
13
15
14
13
12
11
10
11
12
13
13
14
14
Feels °C
11
10
10
14
13
12
12
12
11
11
9
11
12
11
11
9
7
6
6
8
9
10
12
13
  • 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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