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I and Js surfForecast / Cape Town / South Africa
12 Day Weather and Surf, issued 7 am Wednesday 11 Dec 2024 SAST
Best Forecast Surf Conditions for I and Js this week:
The surf forecast for I and Js over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 11) at 2PM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at I and Js in the next 12 days are 3.5m 12s and forecast to arrive on Friday (Dec 13) at 2PM. 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 10s period and expected on Wednesday (Dec 18) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Wed 11th Dec) | 10ft (3.0m) 13s |
| Best Surf | 2PM (Wed 11th Dec) | 10ft (3.0m) 13s |
| Most Powerful | 2PM (Fri 13th Dec) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for I and Js over the next 12 days.
Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||||||
| 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) (?) | 14 | 13 | 12 | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 12 | 12 | 11 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 9 | 10 | 13 | 15 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 3675 | 2699 | 1565 | 2903 | 2239 | 2620 | 3634 | 3673 | 2648 | 1776 | 1293 | 880 | 560 | 1489 | 2831 | 2324 | 1921 | 1066 | 772 | 1270 | 1302 | 919 | 634 | 488 | 460 | 479 | 319 | 240 | 465 | 365 | 341 | 1559 | 3692 | 2949 | 1921 | 1323 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | cross- on | cross- on | on | on | cross | cross- on | cross- on | cross- on | cross | on | cross- on | on | on | on | cross- on | on | cross | cross | cross | cross- off | glass | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross | cross | cross- off |
High Tide / height (m) | 11:47AM 1.42 | 12:33AM 1.27 | 12:43PM 1.48 | 1:26AM 1.36 | 1:35PM 1.53 | 2:13AM 1.43 | 2:23PM 1.55 | 2:58AM 1.47 | 3:09PM 1.54 | 3:41AM 1.48 | 3:52PM 1.50 | 4:23AM 1.47 | 4:35PM 1.43 | 5:05AM 1.44 | 5:16PM 1.35 | 5:47AM 1.38 | 5:58PM 1.25 | 6:31AM 1.32 | 6:41PM 1.15 | 7:17AM 1.26 | 7:31PM 1.07 | 8:08AM 1.20 | 8:32PM 1.00 | |||||||||||||
Low Tide / height (m) | 6:23PM 0.21 | 6:31AM 0.33 | 7:15PM 0.13 | 7:26AM 0.26 | 8:03PM 0.07 | 8:16AM 0.21 | 8:47PM 0.05 | 9:03AM 0.18 | 9:30PM 0.05 | 9:48AM 0.18 | 10:11PM 0.08 | 10:32AM 0.21 | 10:51PM 0.14 | 11:16AM 0.27 | 11:30PM 0.21 | 12:00PM 0.35 | 12:09AM 0.30 | 12:47PM 0.42 | 12:49AM 0.39 | 1:38PM 0.49 | 1:34AM 0.47 | 2:39PM 0.54 | 2:28AM 0.55 | |||||||||||||
Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||||||||||||||
| Sunrise | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - |
| Sunset | - | 7:52 | - | - | 7:52 | - | - | 7:52 | - | - | 7:53 | - | - | 7:53 | - | - | 7:54 | - | - | 7:54 | - | - | 7:55 | - | - | 7:57 | - | - | 7:57 | - | - | 7:58 | - | - | 7:58 | - |
 |  |  |  | |  | | |  | | | | |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 20 | 19 | 19 | 19 | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 19 | 19 | 17 | 17 | 17 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 19 | 21 | 20 | 19 | 19 | 19 | 20 | 20 | 18 | 17 | 18 | 18 |
| Feels °C (?) | 20 | 19 | 16 | 17 | 15 | 15 | 12 | 12 | 12 | 13 | 13 | 13 | 16 | 16 | 13 | 13 | 13 | 14 | 16 | 16 | 14 | 12 | 11 | 9 | 19 | 20 | 18 | 17 | 15 | 14 | 15 | 15 | 11 | 11 | 11 | 9 |
Short Range Forecast: Some drizzle, heaviest during Thu night. Warm (max 20°C on Wed morning, min 16°C on Fri night). Winds increasing (light winds from the W on Thu morning, fresh winds from the WSW by Thu night). | Days 3-6 Weather Summary Some drizzle, heaviest during Sun afternoon. Very mild (max 19°C on Sun morning, min 16°C on Sat morning). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 21°C on Thu afternoon, min 17°C on Tue night). Winds decreasing (near gales from the SE on Wed night, calm by Thu morning). | Long Range Forecast: Mostly dry. Warm (max 20°C on Sat morning, min 17°C on Sat night). Winds increasing (moderate winds from the S on Fri morning, near gales from the SE by Sun night). | |||||||||||||||||||||||||||||||||
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Live Wind Speed (km/h)
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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 I and Js 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 I and Js Surf forecast
The above surf forecast table for I and Js provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at I and Js can be found by selecting the local surf guide option on the grey menu. Our I and Js 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 (I and Js) 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 I and Js 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 I and Js, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 28 km (17 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 40 km (25 miles) away, Robben Island, Stellenbosch and Kayamnandi.
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