I and Js surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 1 am Wednesday 22 Oct 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
16.1° C
(Which is normal 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 Wednesday (Oct 22) at 5AM. The primary swell is predicted to be 2.2m and 15s 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 5.5m 14s and forecast to arrive on Monday (Oct 27) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Oct 22) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 22nd Oct)7ft (2.2m) 15s
Best Surf 5AM (Wed 22nd Oct)7ft (2.2m) 15s
Most Powerful 2PM (Mon 27th Oct)18ft (5.5m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 21°C on Wed morning, min 13°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Mon night. Very mild (max 15°C on Sat afternoon, min 14°C on Sat morning). Winds decreasing (strong winds from the NW on Mon morning, light winds from the WSW by Mon night).

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
2
2
2
3
0
2
0
2
1
0
2
0
0
1
0
6
6
5
3
4
Swell
Height Map
Wave Height (m) & direction (?)
2.1
SW
1.9
SW
1.7
SW
1.5
SW
2.5
SW
3
SW
3
SW
2.5
SW
2.1
SW
1.3
WSW
1.5
SW
2.2
SW
3
SW
3
SW
3
SW
5
SW
5
SW
4.5
SW
4
SW
3.5
SW
3
SW
Period(s) (?)14131217151312121110910131212141414131312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)161511917921320307526532196171310533313438582892245427359843108847320516941422577
Wind
(km/h)
10
SSW
15
SSE
15
SSE
15
WSW
15
SW
25
SSE
20
S
30
SSW
15
SW
15
WSW
20
WSW
15
S
20
SW
25
W
30
NW
40
NW
35
WNW
15
SW
15
WSW
20
SW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
oncross-
on
crosscrosscrossonononon
High Tide
/ height (m)
3:27PM
1.52
3:49AM
1.42
3:54PM
1.47
4:17AM
1.38
4:23PM
1.40
4:46AM
1.31
4:52PM
1.32
5:17AM
1.23
5:23PM
1.22
5:55AM
1.14
6:01PM
1.13
6:49AM
1.06
7:00PM
1.03
Low Tide
/ height (m)
9:22AM
0.19
9:42PM
0.11
9:49AM
0.22
10:09PM
0.16
10:16AM
0.27
10:36PM
0.23
10:44AM
0.34
11:05PM
0.31
11:15AM
0.43
11:38PM
0.39
11:52AM
0.52
12:21AM
0.48
12:47PM
0.61
1:27AM
0.55
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Sunrise5:56--5:56--5:54--5:52--5:52--5:50--5:50--
Sunset-7:05--7:06--7:07--7:07--7:08--7:09--7:10-
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
light rain
clear
clear
part cloud
rain showers
rain showers
rain showers
part cloud
clear
part cloud
Rain (mm)
-----------2---222---
Temp. °C212017161616161614141515141415151515151515
Feels °C (?)20181516131412118910129997812131213
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Cape Town

  1. weather stationWind Update Continuing clean conditions at I and Js (calm at Shoebury Heights wx 18 km from I and Js). A 2.0m long period groundswell from the SSW

    I and Js
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18 km away, 1 h 24 min ago

0 km/h
NNE
0.0
16.1
Air / Water (°C)
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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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