Dias Beach surfForecast / Garden Route / South Africa

information circle12 Day Weather and Surf, issued 7 am Tuesday 19 Aug 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
17.0° C
(Which is 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 Tuesday (Aug 19) at 8PM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.6m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Dias Beach in the next 12 days are 6.0m 14s and forecast to arrive on Saturday (Aug 23) 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 0.5m 3s period and expected on Saturday (Aug 23) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Tue 19th Aug)4ft (1.2m) 14s
Best Surf 2AM (Thu 21st Aug)10ft (3.0m) 11s
Most Powerful 8PM (Sat 23rd Aug)20ft (6.0m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 21°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Fri afternoon, min 11°C on Sun morning). Winds increasing (light winds from the NW on Fri night, strong winds from the WSW by Sat afternoon).

Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SSW
1.3
SSW
0.9
SSW
0.8
SW
0.6
SW
3
SW
3.5
SW
3
SW
1.4
SSW
3.5
SW
1.9
SSW
1.7
SSW
5
SW
5.5
SW
5
SW
2.5
SSW
2.5
SSW
2.4
SSW
2.1
SSW
1.8
SSW
1.6
S
Period(s) (?)161514131211121211111111141414141413131212
Wave
Graph
(?)Metric surfscale
Energy (?)93381040225617530534331317345534488907201346720176123102635245319891387992743
Wind
(km/h)
15
SW
10
S
10
NE
10
WNW
15
SSW
15
W
10
WSW
15
SW
10
NW
20
WSW
15
SSW
10
NW
35
W
30
W
15
W
15
W
25
SW
15
WNW
10
W
10
SE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
crossoffcrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
offcross-
off
offoffcross-
off
offcross-
off
oncross-
on
High Tide
/ height (m)
1:19PM
1.52
1:40AM
1.67
2:12PM
1.70
2:28AM
1.78
2:53PM
1.85
3:06AM
1.88
3:28PM
1.98
3:40AM
1.93
4:01PM
2.05
4:12AM
1.95
4:31PM
2.08
4:41AM
1.94
5:00PM
2.06
Low Tide
/ height (m)
7:34PM
0.68
8:07AM
0.54
8:25PM
0.54
8:45AM
0.42
9:04PM
0.42
9:17AM
0.32
9:37PM
0.34
9:45AM
0.26
10:06PM
0.30
10:12AM
0.23
10:33PM
0.30
10:37AM
0.23
10:59PM
0.33
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Sunrise7:05--7:05--7:03--7:03--7:01--7:01--6:58--
Sunset-6:02--6:04--6:05--6:06--6:06--6:07--6:07-
clearpart cloudclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudclearcloudcloudpart cloudpart cloudclearclearclearclearclear
Rain (mm)
---------------------
Temp. °C181714192117151614161815171513141613141512
Feels °C (?)1513131718161312141214139679101011129
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Garden Route

  1. weather stationWind Update Continuing clean conditions at Dias Beach (light winds from the WNW at George Airport 26 km from Dias Beach). 1.0m 9s swell from the ESE with a 0.8m 15s groundswell from the SSW. 2 swells combining to make bigger set waves.

    Dias Beach
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26 km away, 2 h 5 min ago

7 km/h
WNW
0.0
17.0
Air / Water (°C)
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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 Dias Beach 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.


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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