Underwater Point Surf Break

Lat Long: 34.34° S 18.46° E

Underwater Point Surf Forecast and Surf Report

Issued: 7 pm 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Underwater Point sea temperature is
14.0°C
1.7° 

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


Underwater Point surf forecast from 19 Sep 2026:

  • Best quality surf: Tuesday 22 Sep, 2AM (local time) - 3.5ft (1.1m), 11s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 26 Sep, 8PM (local time) - 8ft (2.4m), 14s period, SW swell with 2,284 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 22 Sep, 2AM (local time) - 3.5ft (1.1m), 11s period with SW swell.

Best Forecast Surf Conditions for Underwater Point this week:

The surf forecast for Underwater Point over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 22) at 2AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.8m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Underwater Point in the next 16 days are 2.4m 14s and forecast to arrive on Saturday (Sep 26) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Sunday (Sep 20) at 11PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 22nd Sep)3.5ft (1.1m) 11s
Best Surf 2AM (Tue 22nd Sep)3.5ft (1.1m) 11s
Most Powerful 8PM (Sat 26th Sep)8ft (2.4m) 14s

Table - best surf conditions forecast for Underwater Point over the next 16 days.


Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 25°C on Tue morning, min 15°C on Sat night). Winds decreasing (strong winds from the SE on Sat night, light winds from the NNE by Tue morning).

Days 5-7 Weather Summary

Moderate rain (total 10mm), heaviest on Wed afternoon. Warm (max 22°C on Tue night, min 16°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, calm by Fri morning).

Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
0
1
0
3
3
2
0
0
0
1
2
2
1
3
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SW
13
2
WSW
13
1.8
WSW
13
1.5
WSW
12
1.3
WSW
12
1.2
SW
11
1.1
SW
11
1.1
SW
13
1.1
SW
12
1.2
SW
11
1.1
SW
11
0.9
SW
10
1.2
SW
10
0.8
SSW
15
1.4
SSW
14
1.8
SW
12
1.7
SW
12
1.6
SW
12
1.2
SW
12
Wave Graph
Metric surfscale
Energy kJ
1810
1401
1100
680
472
373
303
431
367
338
254
177
268
263
788
980
822
655
383
Wind (km/h)
35
ESE
30
SE
45
SE
40
ESE
30
ESE
30
SE
20
ESE
5
NNE
10
E
35
N
25
NNW
15
NNW
15
ESE
20
SE
20
SE
30
ESE
5
WNW
15
S
20
WNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross
cross
cross-on
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-on
High Tide
9:33PM0.93m
11:22AM0.95m
11:39PM0.99m
12:27PM1.07m
00:35AM1.10m
1:03PM1.21m
1:12AM1.22m
1:33PM1.34m
1:44AM1.33m
2:01PM1.47m
2:15AM1.43m
2:29PM1.57m
2:46AM1.50m
Low Tide
4:46AM0.66m
5:46PM0.68m
6:12AM0.56m
6:42PM0.56m
6:53AM0.44m
7:17PM0.43m
7:23AM0.33m
7:47PM0.30m
7:52AM0.23m
8:15PM0.18m
8:20AM0.14m
8:44PM0.08m
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
cloud
part cloud
cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:37
6:35
6:35
6:33
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:39
6:40
6:42
6:42
6:43
6:44
 mm
1
2
3
4
1
6
Temp °C
16
18
18
18
19
24
22
25
22
22
16
16
16
18
20
21
20
17
16
Feels °C
8
13
12
11
15
20
18
25
20
22
13
13
14
16
18
18
21
16
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Underwater Point Surf forecast

The above surf forecast table for Underwater Point provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Underwater Point can be found by selecting the local surf guide option on the grey menu. Our Underwater Point surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Underwater Point) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Underwater Point may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Cape Town? If you are looking for accommodation near Underwater Point, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 46 km (29 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Bellville which is 51 km (32 miles) away, Grabouw, Stellenbosch and Kayamnandi.

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