Cape St Martin surfForecast / West Coast / South Africa

information circle12 Day Weather and Surf, issued 1 am Sunday 18 Jan 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Cape St Martin surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cape St Martin sea temperature is
15.3° C
(Which is 4.1°C colder than average for this time of year)


Best Forecast Surf Conditions for Cape St Martin this week:

The surf forecast for Cape St Martin over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jan 18) at 5AM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cape St Martin in the next 12 days are 3.5m 13s and forecast to arrive on Saturday (Jan 24) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Jan 21) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 18th Jan)10ft (3.0m) 11s
Best Surf 5AM (Sun 18th Jan)10ft (3.0m) 11s
Most Powerful11PM (Sat 24th Jan)11ft (3.5m) 13s

Table - best surf conditions forecast for Cape St Martin over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 26°C on Tue afternoon, min 16°C on Sun night). Winds decreasing (strong winds from the S on Mon night, calm by Tue morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Wed afternoon, min 17°C on Wed night). Winds increasing (calm on Thu morning, fresh winds from the S by Fri night).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
!
!
2
0
!
3
1
4
2
1
3
3
1
4
2
2
3
!
!
!
Swell
Height Map
Wave Height (m) & direction (?)
3.5
SW
3
SW
3
SSW
2.5
SSW
2.5
SSW
3
SSW
2
SSW
2
S
1.4
SW
1.4
SW
1.4
SW
1.3
SW
1.4
SW
1.6
SW
2.2
SW
2.2
SW
2.4
SW
2.5
SSW
3
SSW
3.5
SSW
3.5
SSW
Period(s) (?)121212111188813121212111416141312121313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)334930762879159915468665345336135225614485159752233192219032310292334783893
Wind
(km/h)
30
SSW
40
S
35
S
25
S
45
S
30
SSE
5
NW
30
SSW
20
SSE
10
WSW
30
S
20
S
0
S
30
SSW
10
S
15
NW
20
W
25
S
35
S
45
S
25
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offcross-
off
cross-
off
offglasscross-
off
offcrosscross-
off
cross-
off
glasscross-
off
cross-
off
cross-
on
crossoffcross-
off
cross-
off
off
High Tide
/ height (m)
3:19PM
1.47
3:46AM
1.52
3:52PM
1.51
4:18AM
1.58
4:25PM
1.52
4:49AM
1.61
4:59PM
1.50
5:22AM
1.61
5:34PM
1.46
5:56AM
1.59
6:13PM
1.40
6:35AM
1.54
6:58PM
1.31
Low Tide
/ height (m)
9:21AM
0.30
9:35PM
0.15
9:53AM
0.25
10:04PM
0.12
10:25AM
0.21
10:33PM
0.11
10:58AM
0.20
11:04PM
0.12
11:32AM
0.20
11:36PM
0.17
12:09PM
0.23
12:12AM
0.24
12:51PM
0.28
12:53AM
0.34
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunrise5:58--5:58--5:58--6:00--6:01--6:01--6:03--
Sunset-7:58--7:58--7:58--7:57--7:57--7:55--7:55-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C191816202018242625232622182220202121181816
Feels °C (?)1310815121024201922211920181919202111108
  • 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 Cape St Martin Surf forecast

The above surf forecast table for Cape St Martin provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cape St Martin can be found by selecting the local surf guide option on the grey menu. Our Cape St Martin 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 (Cape St Martin) 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 Cape St Martin 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.

Cape St Martin is 33 km (20 miles) from the city of Saldanha. If you plan a holiday in West Coast, look for hotels and other accommodation in Saldanha. Saldanha has rooms for a wide range of budgets as well as car hire and transport links.

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