Surf Forecasts:
Dias Beach surf forecast from 21 Aug 2026:
- Best quality surf: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 8s period, E swell with cross-onshore winds.
- Most powerful swell: Tuesday 25 Aug, 2AM (local time) - 6ft (1.8m), 16s period, SSW swell with 1,551 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 2AM (local time) - 4ft (1.2m), 11s period with SSW swell.
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 Saturday (Aug 22) at 2AM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.5m and 4s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Dias Beach in the next 16 days are 1.8m 16s and forecast to arrive on Tuesday (Aug 25) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 11s period and expected on Friday (Aug 21) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 22nd Aug) | 4ft (1.2m) 11s |
| Best Surf | 2AM (Thu 27th Aug) | 10ft (3.0m) 8s |
| Most Powerful | 2AM (Tue 25th Aug) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for Dias Beach over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 12°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 11°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the E by Wed afternoon). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 12 | SSW 11 | SSW 11 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 16 | SSW 14 | SSW 14 | SSE 15 | SSW 12 | ESE 7 | E 8 | S 15 | S 15 | S 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 530 | 394 | 319 | 530 | 447 | 550 | 491 | 377 | 167 | 193 | 193 | 1551 | 1319 | 1047 | 1248 | 452 | 648 | 1198 | 966 | 1089 | 957 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | off | cross-off | cross-off | off | glassy | on | glassy | cross | cross | glassy | on | on | on | on | on | cross-on | glassy | glassy | glassy |
High Tide | 9:29AM1.22m | 10:37PM1.31m | 12:25PM1.25m | 00:40AM1.37m | 1:35PM1.41m | 1:36AM1.50m | 2:11PM1.56m | 2:13AM1.63m | 2:40PM1.71m | 2:43AM1.75m | 3:06PM1.84m | 3:12AM1.86m | 3:31PM1.96m | 3:40AM1.94m | |||||||
Low Tide | 3:19PM0.99m | 5:51AM0.94m | 6:21PM0.98m | 7:12AM0.81m | 7:30PM0.85m | 7:52AM0.67m | 8:08PM0.71m | 8:22AM0.53m | 8:38PM0.57m | 8:50AM0.41m | 9:07PM0.45m | 9:16AM0.31m | 9:34PM0.34m | ||||||||
 |  |  | | | | | |  | | | | | | | | | | | | | |
 | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — |
 | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 16 | 19 | 16 | 15 | 16 | 13 | 16 | 17 | 13 | 14 | 15 | 15 | 16 | 17 | 17 | 25 | 26 | 18 |
Feels °C | 12 | 12 | 12 | 11 | 14 | 15 | 15 | 14 | 13 | 15 | 15 | 14 | 12 | 13 | 12 | 12 | 11 | 15 | 24 | 25 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SSW 11 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 16 | SSW 14 | SSW 14 | SSE 15 | SSW 12 | SSW 12 | ESE 8 | ESE 8 | ESE 9 | ESE 9 |
| kJ | 530 | 394 | 319 | 530 | 447 | 550 | 491 | 377 | 167 | 193 | 193 | 1551 | 1319 | 1047 | 1248 | 452 | 418 | 634 | 537 | 482 | 436 |
Swell 2 Height (m) Direction Period (s) | E 9 | WSW 11 | ESE 4 | ESE 5 | ESE 5 | E 8 | SW 15 | SSW 15 | SSW 13 | SSW 14 | S 14 | SW 11 | E 14 | E 14 | SW 13 | S 16 | S 16 | S 11 | S 15 | S 15 | S 15 |
| kJ | 6 | 311 | 10 | 9 | 2 | 1 | 54 | 44 | 70 | 66 | 150 | 467 | 4 | 4 | 202 | 313 | 237 | 377 | 966 | 1089 | 957 |
Swell 3 Height (m) Direction Period (s) | — | E 9 | S 15 | E 8 | E 8 | — | E 8 | E 8 | SW 12 | SW 12 | S 10 | — | — | — | — | SW 13 | S 16 | S 15 | S 18 | SW 12 | SSW 17 |
| kJ | — | 6 | 68 | 1 | 1 | — | 1 | 1 | 37 | 6 | 2 | — | — | — | — | 84 | 248 | 116 | 6 | 69 | 28 |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | — | WSW 3 | SW 6 | — | — | — | — | — | — | — | — | — | E 9 | ESE 6 | ESE 7 | E 8 | — | — | — |
| kJ | — | 6 | — | 6 | 108 | — | — | — | — | — | — | — | — | — | 2 | 166 | 648 | 1198 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 256 | 0 | 3 | 4 | 0 | 0 | 62 | 0 | 3 | 4 | 0 | 62 | 62 | 62 | 62 | 256 | 23 | 0 | 0 | 0 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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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