
Surf Forecasts:
Cardoso surf forecast from 18 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 9AM (local time) - 10ft (3.0m), 16s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 23 Sep, 9AM (local time) - 10ft (3.0m), 16s period, S swell with 4,746 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 12AM (local time) - 10ft (3.0m), 10s period with NE swell.
Best Forecast Surf Conditions for Cardoso this week:
The surf forecast for Cardoso over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 12AM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 2.5m and 10s. Another secondary swell of 0.3m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cardoso in the next 16 days are 3.0m 16s and forecast to arrive on Wednesday (Sep 23) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 21st Sep) | 10ft (3.0m) 10s |
| Best Surf | 9AM (Wed 23rd Sep) | 10ft (3.0m) 16s |
| Most Powerful | 9AM (Wed 23rd Sep) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Cardoso over the next 16 days.
Short Range ForecastHeavy rain (total 38mm), heaviest during Sat night. Warm (max 22°C on Sun morning, min 16°C on Fri morning). Winds decreasing (strong winds from the NNE on Sat night, light winds from the NNW by Sun night). | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Mon morning. Warm (max 21°C on Mon morning, min 13°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
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) | S 10 | S 9 | S 9 | NE 6 | NE 7 | NE 8 | NE 9 | NE 10 | NE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | S 6 | S 10 | S 16 | S 16 | S 14 | S 13 | S 12 | S 12 |
Wave Graph | |||||||||||||||||||||
220 | 171 | 103 | 287 | 440 | 1118 | 1601 | 1593 | 1745 | 763 | 625 | 465 | 295 | 178 | 1034 | 4746 | 3434 | 1922 | 1465 | 1238 | 734 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 11:49AM0.49m | 3:42PM0.48m | 11:26PM0.25m | 11:58AM0.54m | 11:09PM0.31m | 12:13PM0.58m | 11:14PM0.39m | 12:32PM0.62m | 11:31PM0.46m | 12:52PM0.66m | 11:52PM0.53m | 1:14PM0.68m | 00:14AM0.59m | 1:33PM0.68m | 00:38AM0.64m | ||||||
Low Tide | 2:07PM0.47m | 9:35PM0.24m | 9:34PM0.30m | 3:24AM0.21m | 8:21PM0.36m | 4:40AM0.15m | 6:08PM0.33m | 5:32AM0.08m | 6:26PM0.29m | 6:13AM0.02m | 6:52PM0.25m | 6:51AM-0.02m | 7:20PM0.22m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | |
mm | — | — | — | 7 | 8 | 15 | 1 | 1 | 6 | 16 | 7 | 9 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 17 | 18 | 19 | 22 | 22 | 21 | 21 | 20 | 19 | 15 | 14 | 14 | 14 | 15 | 15 | 19 | 19 | 18 |
Feels °C | 16 | 14 | 14 | 14 | 14 | 15 | 19 | 18 | 22 | 22 | 21 | 20 | 10 | 9 | 10 | 12 | 13 | 11 | 16 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 9 | S 9 | S 9 | S 8 | S 11 | S 12 | S 11 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | S 12 | S 16 | S 16 | S 14 | S 13 | S 12 | S 12 |
220 | 171 | 103 | 57 | 35 | 39 | 24 | 23 | 1280 | 763 | 625 | 465 | 295 | 160 | 371 | 4746 | 3434 | 1922 | 1465 | 1238 | 734 | |
Swell 2 Height (m) Direction Period (s) | E 10 | S 15 | E 9 | S 13 | SSE 9 | — | — | — | S 10 | S 10 | S 9 | S 11 | S 11 | S 10 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ESE 11 | ESE 11 |
31 | 4 | 13 | 14 | 8 | — | — | — | 19 | 16 | 7 | 10 | 9 | 2 | 125 | 177 | 188 | 127 | 84 | 24 | 22 | |
Swell 3 Height (m) Direction Period (s) | — | — | SSE 10 | S 12 | — | — | — | — | — | — | S 12 | E 14 | SE 14 | SE 13 | S 22 | ENE 9 | — | E 12 | E 12 | — | E 8 |
— | — | 10 | 11 | — | — | — | — | — | — | 3 | 4 | 7 | 7 | 9 | 188 | — | 25 | 43 | — | 12 | |
Wind waves Height (m) Direction Period (s) | NE 5 | ENE 5 | NE 5 | NE 6 | NE 7 | NE 8 | NE 9 | NE 10 | NE 10 | — | — | — | S 5 | S 6 | S 10 | — | — | — | — | ENE 8 | ENE 5 |
25 | 103 | 98 | 287 | 440 | 1118 | 1601 | 1593 | 1745 | — | — | — | 49 | 178 | 1034 | — | — | — | — | 169 | 67 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 127 | 31 | 31 | 44 | 339 | 31 | 161 | 0 | 0 | 31 | 45 | 32 | 32 | 1 | 0 | 31 | 79 | 1 | 31 | 79 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Cardoso Surf forecast
The above surf forecast table for Cardoso provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cardoso can be found by selecting the local surf guide option on the grey menu. Our Cardoso 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 (Cardoso) 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 Cardoso 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.










