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Dias Beach Surf Forecast
/ Garden Route (22 surf breaks) /
Surf Forecasts:
Dias Beach surfForecast / Garden Route / South Africa
16 Day Weather and Surf, issued 1 pm Saturday 16 May 2026 SASTForecast 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
17.5° C
(Which is slightly cooler than normal)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 (May 16) at 11PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.7m and 13s. Another secondary swell of 0.6m and 4s is also forecast. 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 3.0m 8s and forecast to arrive on Wednesday (May 20) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (May 23) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 16th May) | 4.5ft (1.3m) 12s |
| Best Surf | 2AM (Wed 20th May) | 10ft (3.0m) 8s |
| Most Powerful | 2AM (Wed 20th May) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Dias Beach over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 25mm), heaviest during Mon night. Warm (max 20°C on Sun morning, min 16°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the E by Tue morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Tue afternoon. Warm (max 22°C on Thu afternoon, min 17°C on Tue afternoon). Winds decreasing (fresh winds from the ESE on Tue afternoon, calm by Wed morning). | ||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
S 12 | S 12 | S 11 | S 11 | S 12 | SW 16 | SSW 15 | SSE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | SSE 9 | SE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 18 | SSW 16 | SSW 15 | SSW 14 | |
544 | 389 | 235 | 144 | 171 | 258 | 339 | 452 | 684 | 844 | 1114 | 828 | 411 | 467 | 374 | 280 | 170 | 178 | 206 | 204 | 183 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | glassy | glassy | cross | glassy | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-off | off | cross-off | off | off | cross-off | off | cross-off | |
High Tide | 3:21PM1.94m | 3:36AM2.16m | 4:05PM1.96m | 4:19AM2.11m | 4:49PM1.94m | 5:04AM2.00m | 5:36PM1.87m | 5:52AM1.86m | 6:28PM1.78m | 6:45AM1.68m | 7:27PM1.68m | 7:47AM1.52m | 8:37PM1.60m | 9:05AM1.40m | |||||||
Low Tide | 9:18PM0.22m | 9:51AM0.11m | 10:00PM0.23m | 10:32AM0.15m | 10:44PM0.30m | 11:15AM0.24m | 11:32PM0.42m | 12:00PM0.36m | 00:27AM0.55m | 12:52PM0.50m | 1:37AM0.69m | 1:57PM0.63m | 3:11AM0.76m | ||||||||
 |  | | |  |  | |  |  | |  | | | |  | | |  | | | | |
 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 |
 | 5:37 | — | — | 5:37 | — | — | 5:36 | — | — | 5:36 | — | — | 5:35 | — | — | 5:34 | — | — | 5:34 | — | 5:32 |
— | — | — | — | — | — | — | 14 | 11 | 4 | 2 | — | — | 2 | 1 | — | — | 1 | 2 | — | — | |
Temp °C | 19 | 18 | 20 | 20 | 17 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 19 | 19 | 20 | 22 | 18 | 19 | 19 | 17 | 19 |
17 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 14 | 13 | 14 | 17 | 19 | 18 | 19 | 20 | 18 | 16 | 16 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 12 | SW 16 | SSW 15 | SW 13 | SSW 13 | SW 14 | SE 8 | ESE 8 | SSE 9 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 15 | SSW 14 |
 kJ | 544 | 389 | 235 | 144 | 171 | 258 | 339 | 175 | 118 | 89 | 900 | 341 | 411 | 467 | 374 | 280 | 170 | 133 | 81 | 204 | 183 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 13 | ESE 6 | SE 6 | ESE 6 | S 10 | S 12 | SSE 12 | SE 15 | SSE 14 | SSE 13 | SSE 8 | ESE 8 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 18 | SSW 16 | SSW 6 | S 6 |
| kJ | 141 | 140 | 31 | 40 | 44 | 80 | 141 | 26 | 54 | 71 | 106 | 287 | 229 | 70 | 69 | 64 | 81 | 178 | 206 | 40 | 24 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | ESE 5 | SW 13 | S 14 | SW 14 | ESE 6 | S 18 | SSE 16 | SSE 14 | — | SW 13 | SSE 12 | SSE 12 | SE 12 | SSE 11 | SSE 10 | SSW 19 | SW 13 | SW 12 | E 8 | E 12 |
| kJ | 82 | 14 | 106 | 93 | 167 | 23 | 6 | 26 | 82 | — | 60 | 91 | 56 | 34 | 12 | 11 | 124 | 41 | 49 | 43 | 69 |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | — | — | — | — | SE 5 | SSE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | — | — | — | — | WSW 3 | WSW 4 | SW 5 | SSW 6 | — |
| kJ | 3 | — | — | — | — | — | 28 | 452 | 684 | 844 | 1114 | 828 | — | — | — | — | 1 | 8 | 10 | 65 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 0 | 0 | 4 | 0 | 60 | 62 | 23 | 62 | 62 | 62 | 62 | 62 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 3 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 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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