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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 Wednesday 27 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
18.2° C
(Which is 3.1°C colder than average for this time of year)How big are the waves at Siriu today (27 May):
- Afternoon surf: Afternoon surf (27 May, local time) - 6ft (1.9m), 8s period with S swell.
- Evening surf: Evening surf (27 May, local time) - 7ft (2.1m), 9s period with S swell.
The current surf forecast for Siriu at 9PM is: 2.1m 9s primary swell from a South direction and 1.8m 8s secondary swell from a South-southeast direction, 0.1m 9s secondary swell from a East direction (forecast issued at 02:00pm May 27). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | - | - |
| Afternoon (27 May) | 6ft (1.9m) | 8s |
| Evening (27 May) | 7ft (2.1m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Sat morning, min 15°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 27 | Thursday 28 | Friday 29 | Sat 30 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 8 | S 8 | S 9 | S 9 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 6 | ESE 7 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | |
428 | 512 | 785 | 645 | 388 | 287 | 226 | 164 | 145 | 125 | 125 | 107 | 89 | 75 | 47 | 47 | 40 | 28 | 30 | 38 | 45 | 88 | 233 | 411 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | glassy | on | on | glassy | glassy | off | off | off | glassy | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross | |
High Tide | 11:39AM0.63m | 11:41PM0.58m | 12:21PM0.67m | 00:04AM0.60m | 12:59PM0.70m | 00:31AM0.61m | ||||||||||||||||||
Low Tide | 6:09PM0.25m | 6:13AM0.19m | 6:52PM0.26m | 6:46AM0.14m | 7:33PM0.28m | 7:18AM0.10m | ||||||||||||||||||
 | |  | | | | | | | | | | | | |  | | |  |  | | | | | |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — |
 | — | 5:27 | — | — | — | — | — | — | — | 5:27 | — | — | — | — | — | — | — | 5:27 | — | — | — | — | — | 5:27 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 20 | 17 | 16 | 15 | 15 | 15 | 17 | 19 | 18 | 16 | 16 | 15 | 15 | 15 | 17 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 18 |
15 | 16 | 14 | 14 | 13 | 14 | 14 | 17 | 19 | 17 | 16 | 16 | 15 | 14 | 14 | 17 | 19 | 19 | 18 | 18 | 16 | 16 | 16 | 17 | |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | SSE 8 | SSE 9 | SSE 9 | SSE 9 |
 kJ | 4 | 4 | 493 | 445 | 388 | 287 | 226 | 164 | 145 | 125 | 125 | 107 | 89 | 75 | 47 | 47 | 40 | 28 | 30 | 27 | 45 | 88 | 233 | 411 |
Swell 2 Height (m) Direction Period (s) | NE 5 | E 9 | E 7 | E 9 | E 9 | E 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 8 | SSE 8 | ESE 7 | ESE 7 | ESE 7 | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 19 | 32 | 19 | 32 | 18 | 28 | 16 | 16 | 16 | 16 | 26 | 18 | 14 | 38 | 27 | 26 | 15 | — |
Swell 3 Height (m) Direction Period (s) | E 11 | — | E 9 | E 9 | — | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 12 | SSE 12 | SSE 11 | SSE 12 | S 8 | SE 12 | SSE 10 | E 7 | E 7 | E 7 | E 7 | — |
| kJ | 2 | — | 2 | 1 | — | 1 | 1 | 1 | 5 | 5 | 1 | 1 | 14 | 13 | 13 | 14 | 6 | 6 | 10 | 1 | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | S 9 | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 428 | 512 | 785 | 645 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 0 | 0 | 0 | 0 | 0 | 6 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 27 | 9 | 6 | 0 | 0 | 0 | 6 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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