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Siriu Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Siriu surfForecast / Santa Catarina – Sul / Brazil
16 Day Weather and Surf, issued 8 pm Wednesday 22 Apr 2026 -03Forecast update in hr min s Forecast update imminent
Siriu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Siriu sea temperature is
23.3° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Siriu this week:
The surf forecast for Siriu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 23) at 3AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.3m and 4s. Another secondary swell of 0.5m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Siriu in the next 16 days are 1.6m 16s and forecast to arrive on Tuesday (Apr 28) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Apr 26) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 23rd Apr) | 2ft (0.6m) 9s |
| Best Surf | 3PM (Tue 28th Apr) | 5ft (1.6m) 16s |
| Most Powerful | 3PM (Tue 28th Apr) | 5ft (1.6m) 16s |
Table - best surf conditions forecast for Siriu over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 20°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Sun morning. Warm (max 24°C on Mon afternoon, min 18°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wed 29 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SE 9 | SE 9 | SE 8 | SE 14 | SE 13 | SSE 12 | S 12 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | ENE 7 | ENE 8 | S 9 | S 12 | S 16 | S 13 | S 12 | S 12 | |
51 | 37 | 43 | 51 | 46 | 61 | 69 | 49 | 47 | 64 | 26 | 14 | 14 | 18 | 19 | 192 | 520 | 1265 | 704 | 437 | 327 | |
Wind (km/h) | |||||||||||||||||||||
cross | glassy | cross-on | cross-off | glassy | cross-on | cross | cross-off | cross-on | glassy | glassy | cross | glassy | glassy | on | cross-on | cross-on | glassy | glassy | cross-off | cross | |
High Tide | 11:07PM0.68m | 11:07AM0.26m | 11:49PM0.71m | 11:17AM0.34m | 00:21AM0.71m | 11:12AM0.42m | 00:43AM0.69m | 10:53AM0.51m | 00:51AM0.66m | 11:19AM0.60m | 00:42AM0.64m | 11:53AM0.67m | 00:37AM0.65m | 12:27PM0.72m | |||||||
Low Tide | 8:58AM0.24m | 1:56PM0.21m | 9:28AM0.32m | 3:20PM0.18m | 9:55AM0.42m | 4:27PM0.15m | 5:35AM0.42m | 5:18PM0.12m | 5:56AM0.36m | 6:01PM0.11m | 6:22AM0.28m | 6:38PM0.12m | 6:48AM0.22m | ||||||||
 |  |  |  | | |  |  | |  |  |  | | | | | | |  | | | |
 | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — |
 | — | — | 5:49 | — | — | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 |
— | — | — | — | — | — | — | — | — | 1 | 7 | 3 | — | — | — | — | 1 | 5 | 10 | — | — | |
Temp °C | 22 | 25 | 25 | 22 | 26 | 26 | 22 | 25 | 24 | 21 | 21 | 21 | 21 | 23 | 24 | 22 | 20 | 18 | 19 | 19 | 20 |
23 | 26 | 24 | 24 | 25 | 24 | 23 | 26 | 26 | 23 | 24 | 22 | 22 | 25 | 24 | 24 | 21 | 20 | 20 | 18 | 20 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | ESE 7 | ENE 4 | NE 5 | S 10 | S 10 | S 9 | NE 6 | NNE 5 | ENE 7 | S 6 | S 9 | S 12 | S 16 | S 13 | S 12 | S 12 |
 kJ | 51 | 37 | 43 | 32 | 28 | 37 | 13 | 14 | 47 | 64 | 26 | 9 | 8 | 18 | 18 | 192 | 520 | 1265 | 704 | 437 | 327 |
Swell 2 Height (m) Direction Period (s) | S 9 | E 8 | E 8 | S 11 | S 9 | S 9 | S 12 | S 10 | NE 5 | NE 5 | NE 6 | S 9 | ENE 8 | S 5 | ENE 8 | ENE 8 | E 7 | E 9 | E 8 | E 8 | E 10 |
| kJ | 15 | 12 | 12 | 39 | 24 | 37 | 69 | 49 | 11 | 10 | 8 | 14 | 11 | 5 | 19 | 19 | 27 | 55 | 50 | 50 | 66 |
Swell 3 Height (m) Direction Period (s) | E 8 | S 10 | SSE 12 | SE 14 | SE 13 | SSE 12 | ESE 7 | ESE 7 | SE 7 | ESE 7 | ENE 8 | ENE 8 | S 9 | NNE 4 | S 11 | — | ESE 10 | S 9 | E 9 | ESE 4 | SE 15 |
| kJ | 12 | 17 | 29 | 51 | 46 | 61 | 21 | 19 | 12 | 5 | 14 | 13 | 14 | 2 | 9 | — | 9 | 2 | 40 | 3 | 9 |
Wind waves Height (m) Direction Period (s) | NE 4 | NNE 3 | NE 3 | NNE 3 | NNE 2 | NE 3 | NNW 3 | NW 3 | NNE 5 | S 3 | — | NNE 3 | NNW 4 | — | — | — | — | — | — | SE 4 | SE 4 |
| kJ | 4 | 2 | 1 | 1 | 1 | 9 | 1 | 2 | 22 | 3 | — | 2 | 11 | — | — | — | — | — | — | 8 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 0 | 27 | 0 | 0 | 27 | 9 | 0 | 25 | 0 | 0 | 488 | 15 | 148 | 27 | 38 | 15 | 0 | 0 | 0 | 13 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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 Siriu 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 Siriu Surf forecast
The above surf forecast table for Siriu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Siriu can be found by selecting the local surf guide option on the grey menu. Our Siriu 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 (Siriu) 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 Siriu 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.
Siriu is 27 km (17 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.
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