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Big Bay Surf Forecast
/ Cape Town (69 surf breaks) /
Big Bay surfForecast / Cape Town / South Africa
12 Day Weather and Surf, issued 1 am Wednesday 02 Jul 2025 SAST
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 Wednesday (Jul 02) at 8AM. The primary swell is predicted to be 3.0m and 14s period with a secondary swell of 0.2m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Big Bay in the next 12 days are 4.0m 14s and forecast to arrive on Thursday (Jul 03) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Friday (Jul 04) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 2nd Jul) | 10ft (3.0m) 14s |
| Best Surf | 11AM (Thu 3rd Jul) | 13ft (4.0m) 14s |
| Most Powerful | 11AM (Thu 3rd Jul) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Big Bay over the next 12 days.
Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 14 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 13 | 12 | 12 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 2810 | 2457 | 3231 | 5810 | 2389 | 2425 | 1500 | 1448 | 4577 | 4517 | 4651 | 8127 | 4963 | 4514 | 3403 | 3489 | 3543 | 2704 | 1869 | 1352 | 1562 | 4834 | 5236 | 3298 | 2218 | 1899 | 6760 | 6742 | 7453 | 4562 | 3041 | 2274 | 1202 | 1074 | 1083 | 1234 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | glass | off | cross | on | cross- on | cross- on | cross | on | on | cross- on | cross- on | cross | cross | glass | on | cross- off | cross- off | glass | glass | glass | glass | cross | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off |
High Tide / height (m) | 8:13AM 1.06 | 8:39PM 1.21 | 9:15AM 1.01 | 9:36PM 1.16 | 10:26AM 1.00 | 10:40PM 1.14 | 11:37AM 1.02 | 11:43PM 1.15 | 12:36PM 1.08 | 12:39AM 1.19 | 1:24PM 1.15 | 1:27AM 1.25 | 2:06PM 1.22 | 2:10AM 1.31 | 2:45PM 1.30 | 2:49AM 1.36 | 3:21PM 1.37 | 3:26AM 1.41 | 3:57PM 1.43 | 4:03AM 1.43 | 4:32PM 1.47 | 4:40AM 1.43 | 5:09PM 1.50 | |||||||||||||
Low Tide / height (m) | 2:08PM 0.49 | 3:14AM 0.50 | 3:06PM 0.56 | 4:20AM 0.52 | 4:17PM 0.60 | 5:27AM 0.50 | 5:32PM 0.60 | 6:25AM 0.45 | 6:35PM 0.55 | 7:14AM 0.39 | 7:26PM 0.49 | 7:56AM 0.32 | 8:09PM 0.42 | 8:34AM 0.25 | 8:48PM 0.36 | 9:09AM 0.19 | 9:25PM 0.30 | 9:43AM 0.15 | 10:02PM 0.26 | 10:17AM 0.12 | 10:39PM 0.23 | 10:51AM 0.12 | 11:18PM 0.22 | |||||||||||||
Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||||||||
| Sunrise | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:48 | - | - |
| Sunset | - | 5:47 | - | - | 5:49 | - | - | 5:49 | - | - | 5:49 | - | - | 5:50 | - | - | 5:50 | - | - | 5:51 | - | - | 5:51 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:53 | - |
 |  |  | | | |  | |  |  | | | | |  |  |  |  | | | | | | | | |  | | | | | | | | | | |
Rain (mm) | 1 | - | 2 | 3 | 5 | 2 | 1 | - | 36 | 7 | 5 | 9 | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | 7 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 16 | 15 | 13 | 14 | 15 | 14 | 15 | 12 | 13 | 14 | 13 | 14 | 13 | 12 | 12 | 13 | 13 | 10 | 14 | 13 | 12 | 13 | 13 | 13 | 15 | 14 | 13 | 13 | 12 | 11 | 12 | 12 | 10 | 14 | 13 |
| Feels °C (?) | 14 | 15 | 15 | 12 | 11 | 12 | 7 | 7 | 5 | 11 | 12 | 10 | 7 | 7 | 7 | 10 | 10 | 11 | 7 | 12 | 11 | 11 | 11 | 12 | 9 | 10 | 8 | 8 | 7 | 8 | 8 | 8 | 7 | 7 | 11 | 11 |
Short Range Forecast: Heavy rain (total 50mm), heaviest during Fri night. Very mild (max 16°C on Wed afternoon, min 11°C on Fri night). Winds increasing (calm on Wed night, strong winds from the NNW by Fri afternoon). | Days 3-6 Weather Summary Heavy rain (total 26mm), heaviest during Sat morning. Very mild (max 14°C on Sat afternoon, min 10°C on Mon night). Winds decreasing (fresh winds from the SW on Sun afternoon, calm by Mon morning). | Days 6-9 Weather Summary Light rain (total 7mm), mostly falling on Thu night. Very mild (max 15°C on Thu afternoon, min 10°C on Tue morning). Winds increasing (calm on Tue night, strong winds from the NNW by Thu night). | Long Range Forecast: Mostly dry. Very mild (max 14°C on Sun afternoon, min 9°C on Sun morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Big Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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