Surf Forecasts:
Frenchman's Rock (Frenchies) surf forecast from 20 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 6AM (local time) - 7ft (2.2m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 22 Sep, 12PM (local time) - 10ft (3.0m), 16s period, SSW swell with 4,783 kJ wave energy.
- Next surfable swell (1★+): Wednesday 23 Sep, 6AM (local time) - 7ft (2.2m), 14s period with SSW swell.
Best Forecast Surf Conditions for Frenchman's Rock (Frenchies) this week:
The surf forecast for Frenchman's Rock (Frenchies) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 23) at 6AM. The primary swell is predicted to be 2.2m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Frenchman's Rock (Frenchies) in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Sep 22) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Sep 26) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 23rd Sep) | 7ft (2.2m) 14s |
| Best Surf | 6AM (Wed 23rd Sep) | 7ft (2.2m) 14s |
| Most Powerful | 12PM (Tue 22nd Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Frenchman's Rock (Frenchies) over the next 16 days.
Short Range ForecastMostly dry. Warm (max 23°C on Wed morning, min 6°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 11°C on Sat morning). Winds increasing (calm on Thu night, fresh winds from the SSE by Sat afternoon). | ||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | ||||||||||||||
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 14 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SSW 14 | SSW 15 | SSW 13 | SSW 19 | SSW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 2066 | 4273 | 4716 | 4066 | 3651 | 4769 | 3032 | 1475 | 1090 | 965 | 734 | 587 | 410 | 319 | 236 | 568 | 536 | 1527 | 2146 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross | cross-on | cross | cross | glassy | cross-off | cross | off | glassy | cross-on | cross-on | cross-on | on | on | on |
High Tide | 10:56AM0.97m | 11:17AM1.00m | 00:27AM0.62m | 11:39AM1.02m | 00:19AM0.67m | 12:01PM1.02m | 00:24AM0.74m | 12:23PM1.00m | 00:37AM0.82m | 12:45PM0.97m | 00:54AM0.93m | ||||||||
Low Tide | 8:01PM0.37m | 7:41PM0.38m | 3:47AM0.55m | 7:08PM0.37m | 4:49AM0.45m | 6:43PM0.35m | 5:31AM0.36m | 6:36PM0.33m | 6:07AM0.29m | 6:36PM0.31m | |||||||||
 |  |  |  | | | | | | | | | | | | |  | |  | |
 | — | 6:07 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — |
 | 6:08 | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 12 | 12 | 11 | 16 | 18 | 14 | 23 | 23 | 20 | 27 | 27 | 23 | 22 | 24 | 17 | 12 | 12 | 10 |
Feels °C | 12 | 6 | 7 | 7 | 12 | 14 | 10 | 21 | 21 | 18 | 23 | 23 | 21 | 21 | 23 | 16 | 8 | 6 | 3 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 12 | SSW 14 | SSW 15 | SSW 13 | SSW 19 | SSW 17 |
| kJ | 665 | 4273 | 4716 | 4066 | 3651 | 4769 | 3032 | 1475 | 1090 | 965 | 734 | 587 | 410 | 319 | 236 | 568 | 536 | 1527 | 2146 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 15 | SSW 11 | SSW 22 | SSW 20 | SSW 13 | S 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 72 | 143 | 183 | 495 | 451 | 133 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 25 | SSW 24 | SW 22 | SSW 20 | WSW 19 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 55 | 120 | 371 | 876 | — |
Wind waves Height (m) Direction Period (s) | SW 14 | — | — | — | ENE 3 | — | E 4 | NE 3 | ENE 3 | NE 3 | NE 3 | — | — | — | — | N 3 | NW 4 | NW 4 | S 7 |
| kJ | 2066 | — | — | — | 10 | — | 9 | 7 | 4 | 2 | 2 | — | — | — | — | 8 | 16 | 9 | 239 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 168 | 652 | 168 | 139 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 139 | 2 | 411 | 413 | 1064 | 1019 |
Best forecast wave conditions in South Australia - East Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Frenchman's Rock (Frenchies) Surf forecast
The above surf forecast table for Frenchman's Rock (Frenchies) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Frenchman's Rock (Frenchies) can be found by selecting the local surf guide option on the grey menu. Our Frenchman's Rock (Frenchies) 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 (Frenchman's Rock (Frenchies)) 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 Frenchman's Rock (Frenchies) 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.
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