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Surf Forecasts:
The Boiler surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Saturday 18 Apr 2026 SASTForecast update in hr min s Forecast update imminent
The Boiler surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Boiler sea temperature is
18.5° C
(Which is slightly warmer than usual)How big are the waves at The Boiler today?
The current surf forecast for The Boiler at 11AM is: 3.5m 11s primary swell from a Southwest direction and 0.1m 12s secondary swell from a Northwest direction (forecast issued at 07:00am April 18). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 11ft (3.5m) | 12s |
| Afternoon (18 Apr) | 10ft (3.0m) | 12s |
| Evening (18 Apr) | 6ft (1.9m) | 13s |
Table - waves today at The Boiler. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 13 | 13 | 9 | 9 | 8 | 9 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4068 | 3718 | 2954 | 2112 | 1671 | 1594 | 1122 | 839 | 588 | 1201 | 1394 | 3752 | 4022 | 3959 | 4832 | 5023 | 5026 | 8213 | 7972 | 7471 | 6940 | 6069 | 5161 | 4458 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 3:56PM 1.57 | 4:07AM 1.69 | 4:36PM 1.52 | 4:50AM 1.59 | 5:20PM 1.44 | |||||||||||||||||||
Low Tide / height (m) | 9:47AM -0.08 | 9:57PM 0.05 | 10:27AM -0.03 | 10:38PM 0.11 | 11:09AM 0.06 | 11:24PM 0.21 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:19 | - | - | - | - | - | - | - | 6:17 | - | - | - |
 |  | |  |  |  |  | | | |  | | | | | | | | |  | | | | | |
Rain (mm) | - | - | - | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | - | 1 |
| Temp. °C | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 15 | 17 | 17 | 16 |
| Feels °C (?) | 11 | 10 | 10 | 8 | 8 | 9 | 10 | 11 | 8 | 8 | 7 | 6 | 4 | 4 | 3 | 4 | 6 | 8 | 9 | 9 | 9 | 10 | 11 | 11 |
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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 The Boiler 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.
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