- Forecast
- Maps
- Live
- Weather State
- Spot Information
Extensions Surf Forecast
/ Cape Town (69 surf breaks) /
Extensions surfForecast / Cape Town / South Africa
12 Day Weather and Surf, issued 1 am Friday 04 Jul 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 (Jul 07) at 5AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 1.9m and 11s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Extensions in the next 12 days are 5.0m 16s and forecast to arrive on Friday (Jul 11) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 13s period and expected on Thursday (Jul 10) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 7th Jul) | 10ft (3.0m) 12s |
| Best Surf | 8AM (Mon 7th Jul) | 10ft (3.0m) 13s |
| Most Powerful | 5AM (Fri 11th Jul) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Extensions over the next 12 days.
Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||||||||||||
| 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 | 10 | 12 | 15 | 15 | 14 | 13 | 12 | 12 | 13 | 15 | 15 | 14 | 14 | 12 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 10 | 14 | 15 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 1877 | 5214 | 5309 | 10557 | 8635 | 12297 | 5880 | 7030 | 3947 | 4312 | 4596 | 3618 | 2694 | 2053 | 1551 | 3790 | 6067 | 4861 | 3916 | 3563 | 10667 | 10431 | 7765 | 5353 | 3527 | 3621 | 3793 | 3290 | 2264 | 1567 | 1070 | 695 | 897 | 4254 | 6427 | 7043 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | on | cross | cross | glass | cross- on | cross- on | cross- on | cross | cross- on | on | cross- on | cross- on | cross- on | on | glass | glass | glass | cross- on | on | cross- on | on | on | cross- on | on | on | cross- on |
High Tide / height (m) | 10:24AM 0.99 | 10:40PM 1.14 | 11:36AM 1.02 | 11:43PM 1.15 | 12:36PM 1.07 | 12:40AM 1.19 | 1:25PM 1.14 | 1:28AM 1.25 | 2:07PM 1.22 | 2:10AM 1.31 | 2:45PM 1.29 | 2:49AM 1.37 | 3:21PM 1.36 | 3:26AM 1.41 | 3:57PM 1.42 | 4:03AM 1.43 | 4:33PM 1.47 | 4:39AM 1.43 | 5:09PM 1.50 | 5:18AM 1.41 | 5:46PM 1.51 | 5:59AM 1.36 | 6:27PM 1.49 | |||||||||||||
Low Tide / height (m) | 4:14PM 0.60 | 5:26AM 0.51 | 5:30PM 0.60 | 6:25AM 0.46 | 6:34PM 0.55 | 7:15AM 0.40 | 7:25PM 0.49 | 7:57AM 0.33 | 8:09PM 0.42 | 8:35AM 0.26 | 8:48PM 0.36 | 9:10AM 0.20 | 9:25PM 0.30 | 9:44AM 0.15 | 10:02PM 0.26 | 10:18AM 0.12 | 10:39PM 0.23 | 10:52AM 0.11 | 11:18PM 0.22 | 11:27AM 0.14 | 11:59PM 0.23 | 12:05PM 0.18 | 12:44AM 0.26 | |||||||||||||
Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||||||||||||
| Sunrise | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - | 7:50 | - | - |
| Sunset | - | 5:47 | - | - | 5:47 | - | - | 5:49 | - | - | 5:49 | - | - | 5:50 | - | - | 5:50 | - | - | 5:51 | - | - | 5:51 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:53 | - |
 |  |  | |  |  |  |  | |  | |  | |  | | | | | | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | 18 | 11 | - | 2 | 4 | 4 | 1 | 1 | - | - | - | - | - | - | - | - | 1 | 5 | 1 | - | 4 | - | - | - | - | - | - | - | 2 | 1 | - | - | 2 | 1 | - |
| Temp. °C | 15 | 14 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 14 | 14 | 11 | 13 | 15 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 12 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 |
| Feels °C (?) | 5 | 6 | 9 | 9 | 8 | 6 | 6 | 5 | 7 | 10 | 11 | 11 | 8 | 11 | 11 | 10 | 10 | 11 | 9 | 9 | 8 | 9 | 7 | 10 | 10 | 11 | 11 | 13 | 13 | 12 | 10 | 8 | 8 | 7 | 7 | 10 |
Short Range Forecast: Heavy rain (total 41mm), heaviest during Fri afternoon. Very mild (max 16°C on Fri night, min 13°C on Fri afternoon). Winds decreasing (near gales from the NNW on Fri afternoon, light winds from the SW by Sun night). | Days 3-6 Weather Summary Some drizzle, heaviest during Wed night. Very mild (max 15°C on Tue night, min 11°C on Tue morning). Wind will be generally light. | Days 6-9 Weather Summary Moderate rain (total 10mm), heaviest on Thu morning. Very mild (max 15°C on Thu afternoon, min 12°C on Sat morning). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Sat afternoon). | Long Range Forecast: Light rain (total 6mm), mostly falling on Sun night. Very mild (max 15°C on Sun afternoon, min 13°C on Sun morning). Winds increasing (light winds from the SSW on Sun morning, strong winds from the WNW by Mon night). | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
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.
Nearest