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I and Js surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Friday 09 May 2025 SASTForecast 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
15.3° C
(Which is 2.2°C colder than average for this time of year)How big are the waves at I and Js today?
The current surf forecast for I and Js at 5AM is: 2.2m 14s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a West-southwest direction (forecast issued at 01:00am May 09). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 7ft (2.1m) | 13s |
| Afternoon (09 May) | 6ft (1.9m) | 13s |
| Evening (09 May) | 5ft (1.6m) | 12s |
Table - waves today at I and Js. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |  |    |    |    |    |    |    |    |    | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 7 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 1269 | 1381 | 1875 | 1487 | 1534 | 1336 | 1009 | 807 | 609 | 760 | 2284 | 3524 | 5662 | 7664 | 6827 | 5747 | 4681 | 3640 | 2221 | 1638 | 1898 | 1960 | 1750 | 1581 | 1275 | 1068 | 824 | 683 | 603 | 540 | 1775 | 2576 | 2878 | 2972 | 3314 | 3743 | 3717 | 3663 | 3523 | 3045 | 2820 | 2681 | 2567 | 2148 | 2091 | 1859 | 1622 | 1497 | 1152 | 880 | 866 | 666 | 666 | 557 | 599 | 599 | 634 | 570 | 503 | 494 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- off | glass | glass | cross- on | cross- on | cross | cross | cross | cross- off | cross | cross- on | cross- on | on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- off | cross | cross- off | cross- off | cross | cross | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | glass | off | cross- off | cross- off |
High Tide / height (m) | 1:17AM 1.37 | 1:44PM 1.27 | 1:47AM 1.41 | 2:14PM 1.33 | 2:17AM 1.44 | 2:44PM 1.36 | 2:47AM 1.46 | 3:14PM 1.38 | 3:18AM 1.45 | 3:44PM 1.37 | 3:49AM 1.42 | 4:16PM 1.35 | 4:21AM 1.37 | 4:49PM 1.30 | 4:55AM 1.31 | |||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 7:42AM 0.26 | 7:43PM 0.34 | 8:10AM 0.20 | 8:14PM 0.30 | 8:38AM 0.17 | 8:44PM 0.28 | 9:06AM 0.15 | 9:14PM 0.27 | 9:35AM 0.16 | 9:44PM 0.28 | 10:05AM 0.19 | 10:15PM 0.32 | 10:36AM 0.23 | 10:49PM 0.37 | ||||||||||||||||||||||||||||||||||||||||||||||
Friday 09 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | 7:26 | - | - | - | - | - | - | - | 7:28 | - | - | - | - | - | - | - | 7:28 | - | - | - | - | - | - | - | 7:28 | - | - | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:31 | - | - | - | - | - | - | - | 7:31 |
| Sunset | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:57 | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - |
 | |  |  |  | | | | |  |  |  | | | |  | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 4 | 1 | 1 | 1 | 1 | 2 | 3 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 19 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 23 | 25 | 24 | 24 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 20 |
| Feels °C (?) | 17 | 18 | 16 | 15 | 13 | 13 | 12 | 11 | 10 | 9 | 10 | 9 | 8 | 7 | 8 | 10 | 11 | 12 | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 14 | 13 | 13 | 14 | 14 | 13 | 14 | 13 | 12 | 15 | 18 | 18 | 19 | 18 | 18 | 19 | 19 | 20 | 21 | 21 | 21 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 19 | 20 | 18 |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
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