Surf Forecast Surf Report
Arniston surf break

Arniston surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 7 am Wednesday 19 Feb 2025 SAST
Forecast update in hr  min  s Forecast update imminent
Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Arniston sea temperature is
22.7° C
(Which is 2.2°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Arniston this week:

The surf forecast for Arniston over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Feb 20) at 8AM. The primary swell is predicted to be 2.5m and 9s period with a secondary swell of 2.4m and 9s. Another secondary swell of 0.6m and 11s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Arniston in the next 12 days are 3.0m 9s and forecast to arrive on Thursday (Feb 20) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Feb 22) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 20th Feb)8ft (2.5m) 9s
Best Surf 8AM (Thu 20th Feb)8ft (2.5m) 9s
Most Powerful 2AM (Thu 20th Feb)10ft (3.0m) 9s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
01
Sunday
02
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.5
E
3
E
3
E
2.1
ESE
1.8
ESE
1.5
ESE
1.5
ESE
1.5
ESE
0.9
SW
0.8
SW
0.7
SW
1
SSW
1.1
SSW
1.1
SSW
1
SSW
1.2
SSW
1.2
SSW
1.1
SW
0.8
SSW
1.3
SSW
1.1
SSW
1
SSW
1
SSW
1.6
SE
1.6
SE
1.7
SE
1.6
ESE
2.2
ESE
2.3
ESE
1.8
E
2.3
ESE
1.8
ESE
1.6
ESE
1.3
ESE
1.1
ESE
0.8
SSW
Period(s) (?)7899999912121214131212121212171615141388887788888814
Wave
Graph
(?)Metric surfscale
Energy (?)77811321272660477315352360220197134431414365299397397341329788537378336314333392361445500368623468361216176261
Wind
(km/h)
50
E
50
E
35
ENE
5
SSW
25
SW
15
WSW
15
SW
20
SW
10
WNW
20
SW
25
SSW
5
SSW
20
SE
25
SE
25
ESE
30
ESE
30
SE
30
ESE
35
ESE
45
ESE
40
E
35
ESE
25
SE
5
S
20
S
25
SSE
20
ESE
30
E
30
ESE
20
E
5
SE
25
SSW
25
SW
20
WSW
20
SSW
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
crossglasscross-
on
cross-
on
ononononononononcross-
on
crosscross-
on
cross-
on
onononcross-
on
glasscrosscross-
off
cross-
off
crosson
High Tide
/ height (m)
6:43PM
1.31
6:59AM
1.38
7:24PM
1.17
7:53AM
1.24
9:40PM
1.06
10:38AM
1.18
12:24AM
1.17
12:25PM
1.31
1:15AM
1.36
1:17PM
1.50
1:51AM
1.57
1:57PM
1.68
2:24AM
1.78
2:33PM
1.84
2:57AM
1.97
3:09PM
1.95
3:30AM
2.11
3:46PM
2.01
4:05AM
2.18
4:22PM
2.00
4:40AM
2.18
4:59PM
1.92
Low Tide
/ height (m)
12:42PM
0.57
12:36AM
0.63
1:23PM
0.69
1:16AM
0.78
2:49PM
0.81
3:10AM
0.90
5:54PM
0.76
6:19AM
0.82
7:02PM
0.59
7:17AM
0.63
7:40PM
0.39
7:57AM
0.43
8:14PM
0.21
8:33AM
0.24
8:46PM
0.06
9:08AM
0.07
9:19PM
-0.05
9:44AM
-0.04
9:52PM
-0.10
10:20AM
-0.09
10:26PM
-0.08
10:56AM
-0.06
11:01PM
0.01
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
01
Sunday
02
Sunrise6:16--6:16--6:18--6:18--6:20--6:20--6:22--6:22--6:22--6:24--6:24--6:26--
Sunset-7:28--7:27--7:25--7:24--7:23--7:22--7:21--7:20--7:19--7:16--7:15--7:15-
cloudpart cloudclearpart cloudpart cloudpart cloudcloudcloudclearclearclearpart cloudpart cloudpart cloudpart cloudcloudcloudlight raincloudlight rainmod rainthunderstorm clearclearrain showersclearrain showersrain showerspart cloudpart cloudpart cloudthunderstorm part cloudpart cloudcloudpart cloud
Rain (mm)
-----------------2-162--2-12---2----
Temp. °C212121272523222221232321212120202020212121222222222221222221222321202020
Feels °C (?)141320282423221920211920211917171717171617202023212019191918242319171618

Short Range Forecast: Mostly dry. Warm (max 27°C on Thu morning, min 19°C on Fri night). Winds decreasing (near gales from the E on Wed afternoon, calm by Thu morning).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Mon night. Warm (max 23°C on Sat morning, min 19°C on Mon night). Mainly fresh winds.

Days 6-9 Weather Summary Moderate rain (total 12mm), heaviest on Tue night. Warm (max 22°C on Wed morning, min 20°C on Tue night). Winds decreasing (strong winds from the ESE on Tue night, light winds from the S by Wed night).

Long Range Forecast: Light rain (total 4mm), mostly falling on Fri morning. Warm (max 23°C on Sat afternoon, min 19°C on Sun morning). Winds decreasing (fresh winds from the ESE on Fri afternoon, calm by Sat morning).

  • 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 Arniston Surf forecast

The above surf forecast table for Arniston provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Arniston can be found by selecting the local surf guide option on the grey menu. Our Arniston 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 (Arniston) 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 Arniston 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 Overberg? If you are looking for accommodation near Arniston, camping, hotels and holiday cottages in Overberg, consider staying in Hermanus which is 97 km (60 miles) away.

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