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Surf Forecasts:

I and Js surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 am Monday 24 Nov 2025 SAST
Forecast update in hr  min  s Forecast update imminent
I and Js surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's I and Js sea temperature is
16.2° C
 (Which is 1.9°C colder than average for this time of year)

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 Friday (Nov 28) at 5AM. The primary swell is predicted to be 0.6m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at I and Js in the next 12 days are 2.5m 14s and forecast to arrive on Tuesday (Nov 25) at 11PM. Winds are predicted to be cross-onshore 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 27) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 28th Nov)2ft (0.6m) 10s
Best Surf 5AM (Fri 28th Nov)2ft (0.6m) 10s
Most Powerful11PM (Tue 25th Nov)8ft (2.5m) 14s

Table - best surf conditions forecast for I and Js over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 25°C on Tue afternoon, min 17°C on Mon night). Winds increasing (light winds from the SE on Tue morning, strong winds from the SE by Wed night).

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Fri morning, min 17°C on Sat night). Winds decreasing (near gales from the SE on Thu afternoon, light winds from the ENE by Fri morning).

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
2
3
1
1
0
0
0
0
0
0
0
0
0
0
0
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.9
SW
1.9
SW
1.8
SW
1.8
SW
1.6
SSW
2.4
SW
1.9
SW
1.8
SW
1.6
SW
1
WSW
0.9
SW
0.6
WSW
0.6
WSW
0.6
WSW
1.6
S
1.3
S
1.9
S
2.2
SW
2.1
SW
2
SW
2
SW
Period(s) (?)141313121614121211111010101066812121112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)151212181083913127820801065812617234163716463206136481141511419861112
Wind
(km/h)
30
SSE
35
SSE
35
SE
10
SE
15
SSE
30
SSE
30
SSE
35
SSE
40
SE
45
SE
50
SE
30
E
5
NW
30
S
30
SSE
35
SSE
40
SSE
40
SE
15
SSE
35
SSE
40
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off		cross-
off		crosscross-
on		cross-
on		crosscrosscrosscrosscrosscross
High Tide
/ height (m)
5:16PM
1.25
5:52AM
1.23
5:56PM
1.18
6:41AM
1.19
6:49PM
1.11
7:41AM
1.18
7:59PM
1.06
8:51AM
1.19
9:25PM
1.06
10:02AM
1.25
10:44PM
1.11
11:05AM
1.34
11:49PM
1.21
Low Tide
/ height (m)
11:12AM
0.41
11:31PM
0.33
11:54AM
0.47
12:12AM
0.38
12:47PM
0.53
1:04AM
0.44
1:57PM
0.55
2:09AM
0.48
3:19PM
0.52
3:26AM
0.49
4:37PM
0.43
4:40AM
0.45
5:40PM
0.30
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Sunrise5:30--5:28--5:28--5:28--5:28--5:28--5:28--
Sunset-7:36--7:37--7:37--7:38--7:39--7:40--7:42-
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C191817222521202019201919212119191918212219
Feels °C (?)151311202319161614141111211916151311191913
  • 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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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.

View detailed surf forecast for I and Js at:
surf-forecast.com

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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