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Extensions Surf Forecast
/ Cape Town (69 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
12 Day Weather and Surf, issued 1 pm Tuesday 04 Nov 2025 SAST
Best Forecast Surf Conditions for Extensions this week:
The surf forecast for Extensions over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Nov 10) at 2AM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 1.1m and 12s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Extensions in the next 12 days are 2.2m 12s and forecast to arrive on Tuesday (Nov 04) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 8s period and expected on Thursday (Nov 06) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 10th Nov) | 3.5ft (1.1m) 14s |
| Best Surf | 2AM (Mon 10th Nov) | 3.5ft (1.1m) 14s |
| Most Powerful | 8PM (Tue 4th Nov) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Extensions over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 21°C on Fri morning, min 15°C on Thu night). Winds increasing (light winds from the SSE on Tue afternoon, gales from the ESE by Thu night). | Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sun morning, min 17°C on Fri night). Winds decreasing (near gales from the SE on Sat afternoon, light winds from the ENE by Sun night). | ||||||||||||||||||||||
Tue 04 | Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 10 | 18 | 16 | 14 | 14 | 13 | 13 | 14 | 12 | 12 | 11 | 16 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 1499 | 914 | 579 | 384 | 597 | 359 | 265 | 172 | 140 | 110 | 108 | 348 | 598 | 726 | 767 | 680 | 456 | 528 | 478 | 224 | 1003 | ||
Wind (km/h) | |||||||||||||||||||||||
| 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- on | on | on | cross- on | ||
High Tide / height (m) | 2:05PM 1.70 | 2:36AM 1.57 | 2:47PM 1.74 | 3:18AM 1.59 | 3:30PM 1.71 | 4:00AM 1.56 | 4:14PM 1.63 | 4:45AM 1.50 | 5:00PM 1.50 | 5:34AM 1.40 | 5:52PM 1.35 | 6:30AM 1.29 | 6:52PM 1.19 | 7:40AM 1.20 | |||||||||
Low Tide / height (m) | 8:28PM -0.08 | 8:37AM 0.05 | 9:09PM -0.11 | 9:20AM 0.04 | 9:50PM -0.07 | 10:04AM 0.08 | 10:34PM 0.01 | 10:51AM 0.16 | 11:19PM 0.13 | 11:43AM 0.28 | 12:10AM 0.27 | 12:45PM 0.41 | 1:12AM 0.40 | ||||||||||
Tue 04 | Wednesday 05 | Thursday 06 | Friday 07 | Saturday 08 | Sunday 09 | Monday 10 | |||||||||||||||||
| Sunrise | - | - | 5:41 | - | - | 5:39 | - | - | 5:39 | - | - | 5:39 | - | - | 5:37 | - | - | 5:37 | - | - | 5:35 | ||
| Sunset | 7:16 | - | - | 7:17 | - | - | 7:19 | - | - | 7:20 | - | - | 7:21 | - | - | 7:22 | - | - | 7:22 | - | - | ||
 |  | | |  |  | | | | | | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 17 | 21 | 22 | 21 | 20 | 19 | 20 | 23 | 23 | 23 | 20 | 20 | 19 | 18 | ||
| Feels °C (?) | 15 | 11 | 9 | 7 | 8 | 8 | 7 | 5 | 15 | 15 | 13 | 17 | 11 | 12 | 20 | 19 | 19 | 20 | 18 | 19 | 19 | ||
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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 Extensions 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 Extensions Surf forecast
The above surf forecast table for Extensions provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Extensions can be found by selecting the local surf guide option on the grey menu. Our Extensions 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 (Extensions) 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 Extensions 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 Extensions, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 45 km (28 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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