Surf Forecasts:
South Sound surf forecast from 18 Sep 2026:
- Best quality surf: Friday 25 Sep, 1PM (local time) - 2.5ft (0.8m), 7s period, SE swell with glassy winds.
- Most powerful swell: Wednesday 23 Sep, 4AM (local time) - 6ft (1.9m), 6s period, ESE swell with 275 kJ wave energy.
- Next surfable swell (1★+): Friday 25 Sep, 1PM (local time) - 2.5ft (0.8m), 7s period with SE swell.
Best Forecast Surf Conditions for South Sound this week:
The surf forecast for South Sound over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 25) at 1PM. The primary swell is predicted to be 0.8m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at South Sound in the next 16 days are 1.9m 6s and forecast to arrive on Wednesday (Sep 23) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (Sep 24) at 10PM.
| Wave Type | Time (EST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 25th Sep) | 2.5ft (0.8m) 7s |
| Best Surf | 1PM (Fri 25th Sep) | 2.5ft (0.8m) 7s |
| Most Powerful | 4AM (Wed 23rd Sep) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for South Sound over the next 16 days.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sat morning. Warm (max 29°C on Fri morning, min 26°C on Sat afternoon). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 102mm), heaviest during Tue morning. Warm (max 29°C on Mon morning, min 26°C on Tue morning). Winds decreasing (strong winds from the SE on Tue night, light winds from the SE by Wed afternoon). | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
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) | SE 8 | SE 8 | SE 8 | ESE 7 | ESE 8 | ESE 9 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 6 | SE 7 | SE 6 | ESE 6 | ESE 7 | ESE 6 | E 5 | SE 6 | SE 7 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 60 | 50 | 65 | 86 | 103 | 96 | 132 | 107 | 100 | 67 | 65 | 59 | 105 | 138 | 256 | 175 | 104 | 134 | 60 | 62 | 69 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross | cross |
High Tide | 5:12PM0.25m | 4:38AM0.21m | 5:52PM0.26m | 5:29AM0.23m | 6:19PM0.27m | 6:07AM0.25m | 6:42PM0.28m | 6:41AM0.27m | 7:04PM0.30m | 7:15AM0.29m | 7:27PM0.30m | 7:49AM0.31m | 7:52PM0.31m | ||||||||
Low Tide | 11:40PM0.17m | 10:54AM0.13m | 00:08AM0.16m | 11:40AM0.11m | 00:29AM0.14m | 12:16PM0.10m | 00:49AM0.12m | 12:48PM0.09m | 1:12AM0.09m | 1:20PM0.08m | 1:37AM0.07m | 1:54PM0.08m | 2:04AM0.04m | ||||||||
 |  |  |  | |  | | |  | | | | | | | | | | | | | |
 | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — |
mm | — | 2 | 4 | 6 | 3 | — | 3 | 5 | 1 | — | 2 | 8 | 15 | 17 | 21 | 16 | 18 | 5 | 3 | 3 | 1 |
Temp °C | 29 | 29 | 29 | 27 | 27 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 26 | 27 | 28 | 29 | 28 | 28 | 28 | 28 | 29 |
Feels °C | 31 | 32 | 33 | 28 | 31 | 31 | 31 | 32 | 30 | 31 | 31 | 30 | 24 | 25 | 27 | 29 | 28 | 27 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | ESE 7 | ESE 8 | ESE 9 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 6 | — | — | — | SE 7 | — | — | SE 6 | SE 7 | SE 8 |
| kJ | 60 | 50 | 65 | 86 | 103 | 96 | 132 | 107 | 100 | 67 | 65 | 59 | — | — | — | 140 | — | — | 60 | 62 | 69 |
Swell 2 Height (m) Direction Period (s) | E 7 | — | NNE 4 | — | — | — | — | — | — | — | — | SE 8 | — | — | — | — | — | — | ESE 8 | N 5 | — |
| kJ | 4 | — | 1 | — | — | — | — | — | — | — | — | 28 | — | — | — | — | — | — | 23 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 6 | — | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | NE 4 | ENE 6 | — | — | — | — | — | — | — | — | — | — | SE 7 | SE 6 | ESE 6 | ESE 7 | ESE 6 | E 5 | NE 4 | NE 4 | NE 5 |
| kJ | 2 | 12 | — | — | — | — | — | — | — | — | — | — | 105 | 138 | 256 | 175 | 104 | 134 | 19 | 14 | 33 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 690 | 771 | 29 | 690 | 1002 | 29 | 690 | 973 | 529 | 924 | 973 | 513 | 845 | 845 | 845 | 973 | 1091 | 529 | 690 | 1042 | 436 |
Best forecast wave conditions in Cayman-Islands - Grand Cayman | |||||||||||||||||||||
Best forecast wave conditions in Cayman Islands | |||||||||||||||||||||
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 South Sound 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 South Sound Surf forecast
The above surf forecast table for South Sound provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at South Sound can be found by selecting the local surf guide option on the grey menu. Our South Sound 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 (South Sound) 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 South Sound 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.
South Sound is 4 km (2 miles) from Grand Cayman. If you plan a holiday in Cayman-Islands - Grand Cayman, look for hotels and other accommodation in Grand Cayman. Grand Cayman has rooms for a wide range of budgets as well as car hire and transport links.
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