Surf Forecasts:
Moonlight Bay surf forecast from 20 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8AM (local time) - 4.5ft (1.3m), 13s period, SW swell with offshore winds.
- Most powerful swell: Saturday 26 Sep, 11AM (local time) - 5ft (1.6m), 15s period, SW swell with 1,059 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 8AM (local time) - 4.5ft (1.3m), 13s period with SW swell.
Best Forecast Surf Conditions for Moonlight Bay this week:
The surf forecast for Moonlight Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 8AM. The primary swell is predicted to be 1.3m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Moonlight Bay in the next 16 days are 1.6m 15s and forecast to arrive on Saturday (Sep 26) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Saturday (Sep 26) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 20th Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 8AM (Sun 20th Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 11AM (Sat 26th Sep) | 5ft (1.6m) 15s |
Table - best surf conditions forecast for Moonlight Bay over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Warm (max 26°C on Mon afternoon, min 16°C on Sun night). Winds decreasing (fresh winds from the SE on Sun afternoon, calm by Tue morning). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Fri night. Warm (max 23°C on Fri afternoon, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
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) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 14 | SW 13 | SSW 12 | SSW 11 | SW 11 | SW 7 | SSE 7 | SSE 7 | SSW 14 | SSW 12 | SSW 12 | SSW 11 | SSW 12 | SW 15 | SW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 495 | 320 | 210 | 169 | 130 | 115 | 245 | 222 | 151 | 117 | 73 | 276 | 178 | 326 | 419 | 415 | 376 | 304 | 1059 | 787 | 829 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | glassy | off | cross-on | cross-on | on | off | glassy | cross-off | cross-off | cross-off | off | off | on | cross-on | cross-on |
High Tide | 11:24AM0.96m | 11:41PM1.00m | 12:28PM1.09m | 00:36AM1.11m | 1:04PM1.22m | 1:12AM1.23m | 1:33PM1.36m | 1:44AM1.35m | 2:01PM1.49m | 2:15AM1.44m | 2:29PM1.59m | 2:46AM1.52m | 2:59PM1.67m | 3:18AM1.56m | |||||||
Low Tide | 5:48PM0.69m | 6:13AM0.57m | 6:43PM0.57m | 6:53AM0.45m | 7:17PM0.44m | 7:24AM0.33m | 7:47PM0.31m | 7:52AM0.23m | 8:15PM0.19m | 8:20AM0.14m | 8:44PM0.09m | 8:49AM0.08m | 9:14PM0.01m | ||||||||
 | |  | | |  | |  | | |  | | |  |  | | |  | |  |  | |
 | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | — | 6:38 | — | — | 6:38 | — | — | 6:39 | — | — | 6:40 | — | — | 6:42 | — | — | 6:42 | — | — | 6:43 | — |
mm | — | — | — | — | — | 3 | — | 1 | 2 | 1 | 3 | 2 | — | — | — | — | — | 3 | 2 | 6 | 7 |
Temp °C | 22 | 24 | 20 | 21 | 26 | 22 | 26 | 23 | 23 | 18 | 17 | 17 | 18 | 20 | 20 | 20 | 23 | 22 | 17 | 16 | 15 |
Feels °C | 19 | 20 | 16 | 17 | 22 | 19 | 27 | 22 | 24 | 17 | 16 | 17 | 19 | 20 | 21 | 19 | 21 | 22 | 16 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 13 | SSW 12 | SSW 11 | SW 11 | SW 7 | SW 10 | SW 9 | SSW 14 | SSW 12 | SSW 12 | SSW 11 | SSW 12 | SW 15 | SW 14 | SSW 14 |
| kJ | 495 | 320 | 210 | 169 | 130 | 96 | 245 | 222 | 151 | 117 | 73 | 36 | 81 | 326 | 419 | 415 | 376 | 304 | 1059 | 787 | 829 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 15 | SSW 15 | SE 6 | SE 5 | S 16 | S 13 | S 12 | SW 10 | S 16 | SSW 15 | SW 9 | — | — | SW 20 | SW 16 | — | WSW 20 | SW 18 |
| kJ | — | — | — | 45 | 44 | 26 | 6 | 5 | 14 | 12 | 52 | 5 | 72 | 27 | — | — | 15 | 268 | — | 38 | 252 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 14 | SE 6 | S 15 | S 13 | SE 8 | S 12 | SW 10 | — | — | — | — | S 12 | — | — | S 11 | S 11 |
| kJ | — | — | — | — | — | 115 | 39 | 5 | 14 | 14 | 11 | 139 | — | — | — | — | 3 | — | — | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 6 | SE 5 | SE 5 | SE 6 | ESE 6 | — | W 3 | SW 3 | SSW 4 | SSE 3 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 6 | SE 6 | SSE 5 | SSE 5 | SSE 5 | — |
| kJ | 25 | 123 | 55 | 45 | 72 | 108 | — | 1 | 3 | 4 | 7 | 276 | 178 | 159 | 81 | 96 | 84 | 21 | 40 | 103 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 11 | 11 | 0 | 11 | 0 | 0 | 0 | 8 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 30 | 8 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
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 Moonlight Bay 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 Moonlight Bay Surf forecast
The above surf forecast table for Moonlight Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Moonlight Bay can be found by selecting the local surf guide option on the grey menu. Our Moonlight Bay 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 (Moonlight Bay) 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 Moonlight Bay 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.
Are you planning a holiday in Overberg? If you are looking for accommodation near Moonlight Bay, camping, hotels and holiday cottages in Overberg, consider staying in Grabouw which is 25 km (16 miles) away. Other places in and around Overberg where you can find information about places to rent, and car hire include Hermanus which is 40 km (25 miles) away, Stellenbosch, Kayamnandi and Bellville.
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