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Surf Forecasts:

Dias Beach surfForecast / Garden Route / South Africa

information circle16 Day Weather and Surf, issued 7 pm Wednesday 18 Mar 2026 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
21.9° C
 (Which is 1.7°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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 19) at 5PM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 1.7m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Dias Beach in the next 16 days are 1.8m 15s and forecast to arrive on Monday (Mar 23) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Mar 20) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 19th Mar)5ft (1.6m) 14s
Best Surf 5PM (Thu 19th Mar)5ft (1.6m) 14s
Most Powerful 8PM (Mon 23rd Mar)6ft (1.8m) 15s

Table - best surf conditions forecast for Dias Beach over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 10mm), heaviest on Fri night. Warm (max 24°C on Thu morning, min 17°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Tue morning, min 17°C on Sat night). Wind will be generally light.

Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wed
25
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
3
4
4
3
2
4
2
0
1
0
0
0
1
2
4
3
1
2
2
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SSW
1.6
S
1.6
SSW
1.4
SSW
1.9
SW
2
SSW
2
S
1.4
SSW
1.3
SSW
1.1
SSW
1
SSW
0.9
SSW
1
SSW
1.4
SSW
1.7
SSW
1.9
S
1.5
SSW
1.3
SSW
1.5
SSE
0.9
SSW
0.9
SSW
Period(s) (?)13141413131211121212121111121514131381211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4241092109165111471138100554849332825219723452213281362746590318250229
Wind
(km/h)
20
E
10
SE
5
SW
5
NNW
20
WSW
25
SSW
5
WNW
5
SSE
15
SE
10
E
10
SE
20
ESE
15
E
10
ESE
10
E
5
SSW
5
SSE
10
ESE
5
S
10
SSE
15
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononglassglasscross-
off		crossoffcross-
on		oncross-
on		ononononcross-
on		glasscross-
on		oncrosscross-
on		on
High Tide
/ height (m)
3:48AM
2.20
4:05PM
2.08
4:20AM
2.25
4:38PM
2.08
4:54AM
2.23
5:12PM
2.02
5:30AM
2.15
5:49PM
1.90
6:08AM
1.99
6:30PM
1.74
6:53AM
1.79
7:21PM
1.56
7:51AM
1.57
Low Tide
/ height (m)
9:34PM
0.16
9:58AM
0.12
10:04PM
0.12
10:29AM
0.10
10:35PM
0.12
11:02AM
0.14
11:07PM
0.19
11:36AM
0.24
11:42PM
0.31
12:14PM
0.39
12:20AM
0.49
12:57PM
0.58
1:08AM
0.69
2:01PM
0.78
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wed
25
Sunrise-6:33--6:33--6:33--6:35--6:35--6:37--6:37-
Sunset--6:44--6:43--6:42--6:39--6:38--6:37--6:36
thunderstorm
clear
rain showers
part cloud
part cloud
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
rain showers
clear
part cloud
Rain (mm)
1-2--16-----------1--
Temp. °C202424222021191920182021192222212424222325
Feels °C (?)192524221818181918171920182322232625252527
  • 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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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.

View detailed surf forecast for Dias Beach at:
surf-forecast.com

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 16 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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