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Siriu Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Siriu surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 2 pm Sunday 31 May 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
18.5° C
(Which is 2.5°C colder than average for this time of year)How big are the waves at Siriu today (31 May):
- Afternoon surf: Afternoon surf (31 May, local time) - 3ft (0.9m), 9s period with SE swell.
- Evening surf: Evening surf (31 May, local time) - 3ft (0.9m), 9s period with SE swell.
The current surf forecast for Siriu at 7PM is: 0.9m 10s primary swell from a Southeast direction and 0.7m 6s secondary swell from a East direction (forecast issued at 02:00pm May 31). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | 3ft (0.9m) | 9s |
| Evening (31 May) | 3ft (0.9m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Tue afternoon. Very mild (max 19°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 10 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SE 8 | SE 8 | SE 8 | SSE 6 | S 7 | SE 10 | S 7 | S 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | ESE 6 | SSE 11 | |
226 | 125 | 137 | 128 | 123 | 84 | 112 | 95 | 93 | 90 | 70 | 55 | 67 | 147 | 104 | 79 | 152 | 111 | 232 | 278 | 248 | 299 | 107 | 186 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | |
High Tide | 2:10PM0.73m | 1:29AM0.62m | 2:44PM0.72m | 2:00AM0.63m | 3:19PM0.70m | 2:34AM0.64m | ||||||||||||||||||
Low Tide | 8:49PM0.34m | 8:23AM0.07m | 9:25PM0.36m | 9:01AM0.07m | 10:01PM0.38m | |||||||||||||||||||
 | |  | |  | | | | |  |  | | | | | |  | |  | | | | |  | |
 | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — |
 | — | 5:25 | — | — | — | — | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:25 | — | — | — | — | — | 5:25 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 2 | 1 | 1 | |
Temp °C | 20 | 19 | 17 | 17 | 16 | 15 | 15 | 16 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 15 | 17 | 15 | 16 | 17 | 17 | 17 | 17 | 17 |
19 | 19 | 17 | 17 | 16 | 15 | 15 | 15 | 17 | 16 | 15 | 14 | 14 | 13 | 12 | 13 | 14 | 13 | 17 | 18 | 18 | 18 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 7 | S 6 | S 7 | S 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | ESE 6 | ESE 6 |
 kJ | 226 | 125 | 137 | 128 | 123 | 84 | 112 | 95 | 93 | 90 | 70 | 55 | 67 | 95 | 74 | 52 | 86 | 111 | 232 | 278 | 248 | 299 | 107 | 98 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 6 | ENE 6 | S 6 | SE 10 | SE 10 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 | SE 11 | S 8 | SSE 11 |
| kJ | 38 | 41 | 40 | 39 | 41 | 42 | 33 | 33 | 33 | 22 | 22 | 13 | 13 | 36 | 80 | 58 | 46 | 58 | 23 | 14 | 18 | 4 | 82 | 186 |
Swell 3 Height (m) Direction Period (s) | E 6 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | SE 11 | SE 11 | SE 11 | — | SE 10 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | — | — | SE 11 | SSE 10 | S 8 |
| kJ | 52 | 64 | 41 | 40 | 39 | 23 | 14 | 23 | 21 | 33 | 31 | 31 | — | 27 | 7 | 7 | 3 | 3 | 3 | — | — | 4 | 82 | 84 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 8 | S 8 | S 4 | SSE 5 | SSE 6 | SSE 6 | S 7 | S 6 | S 7 | — | — | — | — | ESE 6 | ENE 6 | — |
| kJ | — | — | — | — | — | — | — | — | 51 | 66 | 9 | 29 | 64 | 147 | 104 | 79 | 152 | — | — | — | — | 125 | 37 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 21 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 15 | 38 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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