Gansbaai surf break

Gansbaai surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 7 pm Monday 22 Dec 2025 SAST
Forecast update in hr  min  s Forecast update imminent
Gansbaai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gansbaai sea temperature is
18.8° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Gansbaai this week:

The surf forecast for Gansbaai over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 22) at 11PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.9m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Gansbaai in the next 12 days are 1.6m 12s and forecast to arrive on Friday (Dec 26) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 9s period and expected on Tuesday (Dec 30) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 22nd Dec)3.5ft (1.1m) 9s
Best Surf11PM (Mon 22nd Dec)3.5ft (1.1m) 9s
Most Powerful 8AM (Fri 26th Dec)5ft (1.6m) 12s

Table - best surf conditions forecast for Gansbaai over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Mon night. Warm (max 21°C on Mon night, min 18°C on Tue night). Winds increasing (light winds from the SE on Mon night, strong winds from the SE by Wed afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sun afternoon, min 18°C on Thu night). Mainly fresh winds.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
0
0
1
0
0
2
1
0
0
0
0
2
1
0
1
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SE
0.8
WSW
0.7
WSW
1.7
SSW
1.9
SSW
2.1
SE
1.3
SW
1.2
SW
1.2
SW
1.4
SW
1.6
SW
1.6
SW
1.4
SW
1.2
SW
1.1
SW
0.9
SW
0.8
SW
0.8
SW
0.6
SW
0.5
SW
0.5
SW
Period(s) (?)9101078611121212121111111110101010109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)22012790319522361371389383533644600466326249170120117774541
Wind
(km/h)
15
SSE
20
S
20
S
20
SE
25
SE
40
SE
30
E
30
ESE
35
SE
25
SE
30
ESE
35
ESE
25
ESE
20
SE
25
SE
20
ESE
25
SE
35
ESE
30
E
35
ESE
40
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscrosscross-
off
cross-
off
cross-
off
offoffcross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
offoffoff
High Tide
/ height (m)
5:06AM
1.43
5:09PM
1.38
5:42AM
1.43
5:47PM
1.33
6:21AM
1.41
6:30PM
1.27
7:05AM
1.39
7:22PM
1.20
7:58AM
1.36
8:28PM
1.14
9:02AM
1.34
9:48PM
1.12
10:16AM
1.34
Low Tide
/ height (m)
10:50PM
0.20
11:10AM
0.35
11:22PM
0.22
11:48AM
0.37
11:57PM
0.26
12:32PM
0.40
12:37AM
0.32
1:23PM
0.42
1:25AM
0.39
2:24PM
0.44
2:25AM
0.45
3:38PM
0.43
3:41AM
0.50
4:58PM
0.39
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Mon
29
Sunrise-5:26--5:26--5:28--5:28--5:28--5:30--5:30-
Sunset--7:54--7:55--7:55--7:57--7:57--7:57--7:58
rain showers
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
1--1-----------------
Temp. °C212121192121202121192121202021202223202324
Feels °C (?)221919171715161716151716161817171817141717
  • 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 Gansbaai Surf forecast

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

Gansbaai is 21 km (13 miles) from Hermanus. If you plan a holiday in Overberg, look for hotels and other accommodation in Hermanus. Hermanus has rooms for a wide range of budgets as well as car hire and transport links.

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