The Boiler surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 1 am Saturday 20 Dec 2025 SAST
Forecast 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
18.8° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for The Boiler this week:

The surf forecast for The Boiler over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 22) at 8AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.6m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Boiler in the next 12 days are 2.5m 14s and forecast to arrive on Saturday (Dec 20) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Sunday (Dec 21) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 22nd Dec)4ft (1.2m) 11s
Best Surf 8AM (Mon 22nd Dec)4ft (1.2m) 11s
Most Powerful 2PM (Sat 20th Dec)8ft (2.5m) 14s

Table - best surf conditions forecast for The Boiler over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 24°C on Sun afternoon, min 19°C on Sat morning). Winds decreasing (near gales from the SE on Sat night, light winds from the ESE by Mon morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Tue afternoon, min 18°C on Thu night). Winds increasing (fresh winds from the SSE on Tue morning, near gales from the SE by Wed afternoon).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
2
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.5
SSW
2.4
SSW
2
SW
1.3
SW
1.2
SW
1.3
SW
1.1
SW
1.1
SW
0.9
WSW
0.8
WSW
0.9
WSW
0.5
WSW
1.8
SW
1.1
SW
1.2
SW
1
SW
1.3
SW
1.3
SW
1.4
SW
1.5
SW
1.3
SW
Period(s) (?)1414131212111111101010109811121212111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)24462250128544041439629226317812515453492160357264435433515515364
Wind
(km/h)
40
SE
50
SSE
40
SE
25
SE
45
SE
35
SE
20
SE
35
SSE
35
SSE
30
SSE
35
SSE
30
SSE
40
SE
50
SE
45
SE
30
SE
45
SE
45
SE
45
SE
50
SSE
40
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offoffcross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
off
High Tide
/ height (m)
3:27PM
1.39
3:57AM
1.37
4:01PM
1.39
4:31AM
1.38
4:35PM
1.37
5:06AM
1.39
5:10PM
1.33
5:42AM
1.38
5:48PM
1.28
6:21AM
1.37
6:31PM
1.22
7:06AM
1.34
7:24PM
1.16
Low Tide
/ height (m)
9:26AM
0.31
9:45PM
0.18
10:00AM
0.31
10:17PM
0.18
10:34AM
0.31
10:49PM
0.19
11:10AM
0.33
11:22PM
0.22
11:49AM
0.35
11:57PM
0.26
12:32PM
0.38
12:37AM
0.31
1:23PM
0.40
1:25AM
0.38
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sunrise5:30--5:31--5:31--5:31--5:31--5:33--5:33--
Sunset-7:57--7:57--7:58--7:58--7:59--7:59--7:59-
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
Rain (mm)
---------------------
Temp. °C212120232422222321202120202019202019202019
Feels °C (?)151413201815212117171716141211151411121210
  • 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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Information about the The Boiler Surf forecast

The above surf forecast table for The Boiler provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Boiler can be found by selecting the local surf guide option on the grey menu. Our The Boiler 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 (The Boiler) 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 The Boiler 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 The Boiler, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 27 km (17 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 38 km (24 miles) away, Bellville, Stellenbosch and Kayamnandi.

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