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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 8 pm Friday 22 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
19.7° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 5AM is: 1.7m 13s primary swell from a South-southeast direction and 1.0m 5s secondary swell from a East direction, 1.3m 5s secondary swell from a East direction (forecast issued at 08:00pm May 22). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 5ft (1.6m) | 12s |
| Afternoon (23 May) | 4.5ft (1.4m) | 12s |
| Evening (23 May) | 4ft (1.2m) | 12s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 38mm), heaviest during Fri night. Warm (max 21°C on Mon afternoon, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 22 | Saturday 23 | Sunday 24 | Monday 25 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 7 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | SSE 10 | SE 17 | SSE 16 | |
1677 | 1422 | 1255 | 1025 | 903 | 715 | 599 | 505 | 486 | 411 | 376 | 431 | 366 | 423 | 191 | 199 | 170 | 131 | 131 | 128 | 120 | 125 | 295 | 452 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-off | cross-off | cross-off | off | glassy | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | glassy | glassy | glassy | cross-on | cross-on | |
High Tide | 11:24PM0.64m | 4:48AM0.57m | 11:54PM0.61m | 6:16AM0.53m | 00:07AM0.57m | 8:32AM0.53m | ||||||||||||||||||
Low Tide | 2:50AM0.55m | 2:35PM0.19m | 3:37AM0.49m | 3:37PM0.20m | 4:20AM0.42m | |||||||||||||||||||
 | |  | | |  |  | |  | | | |  | | |  |  | | | | | | | | |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — |
 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 |
1 | 3 | 12 | 17 | 5 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 15 | 15 | 15 | 15 | 16 | 19 | 19 | 17 | 18 | 17 | 17 | 17 | 18 | 20 | 21 |
15 | 15 | 15 | 15 | 14 | 14 | 16 | 18 | 17 | 15 | 14 | 14 | 14 | 15 | 18 | 17 | 16 | 18 | 17 | 18 | 18 | 19 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | ENE 7 | SSE 7 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | ESE 7 | E 7 | E 7 |
 kJ | 1677 | 1422 | 1255 | 1025 | 903 | 715 | 599 | 505 | 486 | 411 | 376 | 431 | 366 | 423 | 117 | 145 | 116 | 88 | 94 | 102 | 93 | 85 | 110 | 92 |
Swell 2 Height (m) Direction Period (s) | — | — | — | E 5 | E 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 7 | ENE 7 | ENE 7 | SSE 11 | ENE 7 | ENE 7 | ENE 7 | SSE 10 | SSE 10 | S 10 | SSE 10 | SSE 10 | SSE 16 |
| kJ | — | — | — | 55 | 60 | 53 | 43 | 45 | 74 | 92 | 95 | 89 | 108 | 117 | 191 | 114 | 91 | 82 | 131 | 128 | 120 | 125 | 120 | 452 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 9 | E 10 | E 10 | E 9 | — | — | SSE 6 | SSE 6 | — | — | — | — | SSE 11 | SSE 10 | SSE 10 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | SE 17 | SSE 9 |
| kJ | — | — | — | 2 | 2 | 2 | 2 | — | — | 15 | 26 | — | — | — | — | 187 | 170 | 131 | 62 | 48 | 45 | 25 | 295 | 90 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 5 | E 5 | E 6 | N 3 | — | E 6 | — | — | — | — | — | — | SSE 7 | SSE 7 | — | — | — | — | — | — | — | — |
| kJ | — | — | 51 | 90 | 100 | 3 | — | 77 | — | — | — | — | — | — | 107 | 199 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 27 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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