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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 Monday 25 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
19.0° C
(Which is 2.3°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 8PM is: 1.4m 15s primary swell from a South-southeast direction and 0.7m 6s secondary swell from a East-southeast direction (forecast issued at 02:00pm May 25). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | - | - |
| Afternoon (25 May) | 3.5ft (1.0m) | 16s |
| Evening (25 May) | 4.5ft (1.4m) | 15s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Tue morning. Warm (max 21°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | S 11 | S 7 | S 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | |
295 | 539 | 966 | 857 | 756 | 577 | 522 | 379 | 308 | 232 | 176 | 164 | 123 | 229 | 154 | 299 | 628 | 671 | 623 | 360 | 315 | 238 | 201 | 160 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | off | off | glassy | |
High Tide | 11:55PM0.55m | 10:44AM0.58m | 11:32PM0.56m | 11:39AM0.63m | 11:41PM0.58m | |||||||||||||||||||
Low Tide | 4:33PM0.22m | 5:00AM0.34m | 5:23PM0.23m | 5:37AM0.26m | 6:09PM0.25m | 6:13AM0.19m | ||||||||||||||||||
 |  |  |  |  | | |  |  | | | |  | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — |
 | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:27 | — | — | — | — | — | 5:27 |
— | — | — | 2 | 2 | 1 | 1 | 3 | 2 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 18 | 19 | 21 | 19 | 18 | 17 | 16 | 16 | 17 | 19 | 20 | 17 | 15 | 14 | 14 | 14 | 16 |
18 | 18 | 17 | 17 | 16 | 15 | 16 | 18 | 20 | 23 | 19 | 18 | 15 | 13 | 14 | 14 | 15 | 16 | 14 | 13 | 12 | 12 | 13 | 16 | |
Swell 1 Height (m) Direction Period (s) | ESE 6 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | ESE 7 | SSE 11 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 |
 kJ | 70 | 539 | 966 | 857 | 756 | 577 | 522 | 379 | 308 | 232 | 176 | 164 | 123 | 15 | 90 | 299 | 383 | 424 | 394 | 360 | 315 | 238 | 201 | 160 |
Swell 2 Height (m) Direction Period (s) | S 10 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ESE 7 | ESE 7 | NE 5 | NE 5 | ESE 7 | NE 5 | ESE 7 | SSE 12 | E 7 | E 7 | E 6 | E 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 88 | 51 | 40 | 38 | 36 | 26 | 33 | 35 | 26 | 26 | 18 | 14 | 18 | 5 | 9 | 26 | 8 | 4 | 3 | 1 | 20 | 34 | 32 | 32 |
Swell 3 Height (m) Direction Period (s) | SE 17 | S 9 | NE 6 | NE 6 | E 14 | E 13 | E 13 | E 13 | E 13 | E 12 | E 7 | ESE 7 | NE 5 | E 12 | NE 4 | ESE 7 | — | — | — | — | E 8 | E 8 | E 8 | E 8 |
| kJ | 295 | 85 | 2 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 24 | 18 | 7 | 3 | 3 | 9 | — | — | — | — | 1 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 3 | NNE 3 | ENE 6 | NNE 4 | NNE 4 | NE 4 | NNE 5 | SSW 2 | SW 3 | S 11 | S 7 | S 8 | S 8 | S 8 | S 8 | — | — | — | — | — |
| kJ | — | — | — | — | 6 | 1 | 56 | 17 | 12 | 16 | 30 | 1 | 2 | 229 | 154 | 504 | 628 | 671 | 623 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 27 | 27 | 9 | 6 | 9 | 9 | 0 | 0 | 6 | 0 | 10 | 0 | 10 | 10 | 10 | 10 | 13 | 56 | 13 | 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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