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Siriu Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Siriu surfForecast / Santa Catarina – Sul / Brazil
12 Day Weather and Surf, issued 2 pm Monday 31 Mar 2025 -03
Best Forecast Surf Conditions for Siriu this week:
The surf forecast for Siriu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Apr 01) at 12AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.5m and 9s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Siriu in the next 12 days are 2.2m 13s and forecast to arrive on Saturday (Apr 05) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Friday (Apr 04) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 1st Apr) | 2ft (0.6m) 8s |
| Best Surf | 12PM (Sat 5th Apr) | 7ft (2.1m) 12s |
| Most Powerful | 6PM (Sat 5th Apr) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Siriu over the next 12 days.
Mon 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 10 | 8 | 9 | 9 | 9 | 7 | 5 | 9 | 8 | 10 | 9 | 8 | 7 | 9 | 10 | 13 | 13 | 12 | 12 | 11 | 10 | 10 | 10 | 11 | 11 | 8 | 8 | 9 | 8 | 8 | 10 | 10 | 10 | 10 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 70 | 51 | 103 | 102 | 73 | 88 | 48 | 94 | 118 | 335 | 254 | 103 | 387 | 809 | 640 | 1599 | 1452 | 918 | 905 | 423 | 306 | 201 | 163 | 226 | 214 | 207 | 213 | 217 | 165 | 141 | 370 | 940 | 731 | 1081 | 1114 | 1094 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | off | glass | cross- on | glass | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | glass | glass | cross- off | on | cross- on | cross- on | cross- on | cross- on | on | on | off | glass | cross- on | cross- off | glass | on | off | glass |
High Tide / height (m) | 2:49AM 0.57 | 3:35PM 0.72 | 2:59AM 0.56 | 4:16PM 0.64 | 10:36PM 0.55 | 3:03AM 0.57 | 5:04PM 0.54 | 11:35PM 0.64 | 6:29PM 12:12AM 0.45 0.69 | 12:04PM 0.30 | 12:39AM 0.70 | 11:54AM 0.37 | 12:57AM 0.70 | 11:30AM 0.46 | 1:06AM 0.69 | 11:32AM 0.56 | 1:05AM 0.69 | 11:57AM 0.65 | 1:05AM 0.69 | 12:26PM 0.72 | 1:13AM 0.70 | 12:56PM 0.76 | 1:26AM 0.70 | |||||||||||||
Low Tide / height (m) | 10:31PM 0.28 | 8:52AM 0.19 | 11:23PM 0.42 | 8:15AM 0.15 | 7:43PM 12:44AM 0.50 0.53 | 8:32AM 0.14 | 7:34PM 0.48 | 8:58AM 0.18 | 7:05PM 0.45 | 9:26AM 0.25 | 3:06PM 0.24 | 9:49AM 0.35 | 4:28PM 0.18 | 6:28AM 0.43 | 5:24PM 0.13 | 6:19AM 0.38 | 6:05PM 0.08 | 6:38AM 0.32 | 6:41PM 0.06 | 7:00AM 0.26 | 7:13PM 0.06 | 7:22AM 0.21 | 7:42PM 0.08 | 7:43AM 0.17 | ||||||||||||
Mon 31 | Tuesday 01 | Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | Thursday 10 | Friday 11 | Sat 12 | ||||||||||||||||||||||||
| Sunrise | - | - | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 | - | - | 6:28 |
| Sunset | 6:13 | - | - | 6:12 | - | - | 6:10 | - | - | 6:09 | - | - | 6:08 | - | - | 6:07 | - | - | 6:06 | - | - | 6:05 | - | - | 6:04 | - | - | 6:02 | - | - | 6:01 | - | - | 6:00 | - | - |
 |  |  | | | | |  |  | |  |  |  | | | | | | | | | | | | |  |  | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 8 | 3 | 3 | 2 | 2 | - | - | - | - | - | 1 | 1 | 4 | 2 | 1 | 3 | - | - | 15 | 5 | 4 | 1 | - | - | - | - | - | - | - |
| Temp. °C | 30 | 24 | 27 | 26 | 25 | 29 | 30 | 24 | 24 | 23 | 23 | 22 | 20 | 20 | 18 | 21 | 19 | 21 | 21 | 19 | 21 | 22 | 20 | 23 | 23 | 20 | 20 | 21 | 21 | 24 | 23 | 20 | 25 | 25 | 22 | 25 |
| Feels °C (?) | 28 | 24 | 30 | 29 | 29 | 28 | 29 | 25 | 27 | 25 | 25 | 20 | 15 | 14 | 15 | 17 | 16 | 21 | 21 | 19 | 22 | 22 | 20 | 21 | 21 | 19 | 20 | 21 | 23 | 24 | 23 | 21 | 27 | 27 | 24 | 27 |
Short Range Forecast: Moderate rain (total 11mm), heaviest on Wed night. Warm (max 30°C on Mon afternoon, min 23°C on Mon night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Thu afternoon. Warm (max 23°C on Thu afternoon, min 16°C on Fri night). Winds decreasing (fresh winds from the SSW on Fri afternoon, light winds from the SE by Sun morning). | Days 6-9 Weather Summary Heavy rain (total 31mm), heaviest during Tue night. Warm (max 23°C on Tue morning, min 19°C on Sun night). Wind will be generally light. | Long Range Forecast: Light rain (total 5mm), mostly falling on Wed afternoon. Warm (max 25°C on Fri morning, min 19°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 12 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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