Big Bay Surf Forecast

/ Cape Town (70 surf breaks) /

South Africa (276 surf breaks) / Lat Long: (33.79° S 18.46° E)

Surf Forecasts:

Big Bay surfForecast / Cape Town / South Africa

12 Day Weather and Surf, issued 1 pm Friday 14 Nov 2025 SAST

Forecast update in hr min s Forecast update imminent

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

Today's Big Bay sea temperature is 14.2° C
(Which is 3.2°C colder than average for this time of year)

Best Forecast Surf Conditions for Big Bay this week:

The surf forecast for Big Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 16) at 5AM. The primary swell is predicted to be 3.0m and 14s period with a secondary swell of 0.2m and 16s. Another secondary swell of 1.7m and 6s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Big Bay in the next 12 days are 3.0m 14s and forecast to arrive on Sunday (Nov 16) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Friday (Nov 14) at 8PM.

Wave Type	Time (SAST) & Date	Wave Height & Period
Next good surf (1 star+)	5AM (Sun 16th Nov)	10ft (3.0m) 14s
Best Surf	5AM (Sun 16th Nov)	10ft (3.0m) 14s
Most Powerful	5AM (Sun 16th Nov)	10ft (3.0m) 14s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 24°C on Mon morning, min 13°C on Sun night). Winds decreasing (strong winds from the SSE on Sat afternoon, light winds from the SE by Mon morning).											Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Mon afternoon, min 15°C on Tue night). Winds increasing (light winds from the SE on Mon night, strong winds from the S by Tue afternoon).
	Fri 14		Saturday 15			Sunday 16			Monday 17			Tuesday 18			Wednesday 19			Thursday 20
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	1	1	0	3	3	1	3	3	2	2	2	0	2	2	2	3	3	2	4	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	S	SW	SSW	SW	SW	SSE	S	S	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	6	7	7	7	14	13	13	12	8	8	8	16	15	13	13	13	15	15	14	14	13
Wave Graph (?)
kJ (?)	322	501	439	684	2119	2313	1092	505	331	441	212	254	551	398	380	473	1314	1801	1728	1595	1266
Wind (km/h)	S	SSE	S	SSE	SE	SSE	SSE	SE	S	S	SE	S	S	SSE	S	S	SE	SSE	S	SE	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- on
High Tide / height (m)		12:13AM 1.14	12:21PM 1.32		12:55AM 1.21	12:58PM 1.36		1:29AM 1.27	1:31PM 1.40		2:01AM 1.33		2:02PM 1.43	2:31AM 1.37		2:33PM 1.44	3:01AM 1.38		3:05PM 1.44	3:31AM 1.38
Low Tide / height (m)	6:11PM 0.39		6:11AM 0.44	6:52PM 0.31		6:53AM 0.39	7:25PM 0.25		7:29AM 0.35	7:55PM 0.20		8:01AM 0.31		8:24PM 0.16	8:32AM 0.28		8:53PM 0.15	9:02AM 0.27		9:22PM 0.16	9:33AM 0.28

	Fri 14		Saturday 15			Sunday 16			Monday 17			Tuesday 18			Wednesday 19			Thursday 20
Sunrise	-	-	5:35	-	-	5:33	-	-	5:33	-	-	5:33	-	-	5:31	-	-	5:31	-	-	5:31
Sunset	7:24	-	-	7:25	-	-	7:27	-	-	7:28	-	-	7:29	-	-	7:30	-	-	7:30	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	21	19	19	19	17	22	23	20	24	27	23	23	23	19	24	25	20	26	28	23	24
Feels °C (?)	15	14	12	11	9	18	16	14	21	22	20	20	18	13	21	21	16	23	24	19	22

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 Big Bay Surf forecast

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

Big Bay is 8 km (5 miles) from the very large city of Robben Island. If you plan a holiday in Cape Town, look for hotels and other accommodation in Robben Island. Robben Island has rooms for a wide range of budgets as well as cheap car hire and transport links.