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Dias Beach surfForecast / Garden Route / South Africa

information circle12 Day Weather and Surf, issued 7 pm Monday 08 Dec 2025 SAST
Forecast update in hr  min  s Forecast update imminent
Dias Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dias Beach sea temperature is
21.1° C
(Which is 1.3°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Dias Beach this week:

The surf forecast for Dias Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 08) at 11PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.3m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Dias Beach in the next 12 days are 3.0m 13s and forecast to arrive on Saturday (Dec 13) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Friday (Dec 12) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 8th Dec)4.5ft (1.3m) 12s
Best Surf11PM (Fri 12th Dec)10ft (3.0m) 11s
Most Powerful 8PM (Sat 13th Dec)10ft (3.0m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 27°C on Thu afternoon, min 17°C on Mon night). Winds decreasing (fresh winds from the ESE on Wed afternoon, light winds from the ENE by Thu morning).

Days 3-6 Weather Summary Some drizzle, heaviest during Thu night. Warm (max 29°C on Fri afternoon, min 16°C on Sat night). Winds increasing (calm on Thu night, strong winds from the SW by Fri afternoon).

Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Mon
15
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
1
0
0
0
0
2
0
0
2
1
1
2
2
1
4
1
0
3
1
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
SSW
1.3
SSW
1.2
SSW
1.1
SSW
1.3
SSW
1.9
ESE
2.2
E
1.3
ESE
1.4
ESE
1.3
ESE
1.3
E
1.7
SW
1.8
SW
2.2
SW
2.2
SW
1.8
SSW
1.6
SSW
1.4
SSW
1.4
SSW
1.4
SSW
1.4
SSW
Period(s) (?)1212121211677881017111413131212121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5084833593773872495061622042293131697743194915751012725527503521494
Wind
(km/h)
5
WNW
15
S
30
SSE
20
E
30
ESE
35
ESE
10
ENE
10
ESE
15
SE
15
WSW
25
NW
40
SW
30
W
35
WSW
40
SW
5
NW
15
ESE
25
ESE
5
ENE
15
SSE
15
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcrosscross-
on
cross-
on
ononcross-
on
oncross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassononglasscross-
on
cross-
on
High Tide
/ height (m)
6:37AM
1.84
6:49PM
1.68
7:31AM
1.74
7:45PM
1.53
8:34AM
1.66
8:54PM
1.42
9:46AM
1.61
10:16PM
1.37
11:01AM
1.62
11:35PM
1.39
12:05PM
1.65
12:38AM
1.45
12:55PM
1.71
Low Tide
/ height (m)
12:05AM
0.47
12:37PM
0.67
12:51AM
0.60
1:41PM
0.79
1:47AM
0.71
3:02PM
0.87
2:57AM
0.81
4:34PM
0.89
4:19AM
0.84
5:49PM
0.84
5:32AM
0.83
6:42PM
0.77
6:28AM
0.78
7:22PM
0.69
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Mon
15
Sunrise-5:11--5:11--5:13--5:13--5:13--5:13--5:13-
Sunset--7:34--7:35--7:36--7:36--7:37--7:37--7:37
clear
clear
cloud
rain showers
part cloud
clear
clear
clear
clear
rain showers
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
Rain (mm)
---2-----1-----------
Temp. °C202323182020192627242729202020182021182222
Feels °C (?)202120161514182526242224121312131717162120
  • 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

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Information about the Dias Beach Surf forecast

The above surf forecast table for Dias Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Dias Beach can be found by selecting the local surf guide option on the grey menu. Our Dias Beach 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 (Dias Beach) 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 Dias Beach 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.

Dias Beach is 6 km (4 miles) from the city of Mossel Bay. If you plan a holiday in Garden Route, look for hotels and other accommodation in Mossel Bay. Mossel Bay has rooms for a wide range of budgets as well as car hire and transport links.

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