Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 8 am Saturday 30 May 2026 -03
Forecast 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
18.6° C
(Which is 2.4°C colder than average for this time of year)

How big are the waves at Siriu today (30 May):

  • Morning surf: Morning surf (30 May, local time) - 4.5ft (1.4m), 10s period with SE swell.
  • Afternoon surf: Afternoon surf (30 May, local time) - 6ft (1.8m), 11s period with SE swell.
  • Evening surf: Evening surf (30 May, local time) - 5ft (1.5m), 10s period with SSE swell.

The current surf forecast for Siriu at 4PM is: 1.7m 11s primary swell from a Southeast direction and 0.1m 7s secondary swell from a East direction (forecast issued at 08:00am May 30). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (30 May)4.5ft (1.4m)10s
Afternoon (30 May)6ft (1.8m)11s
Evening (30 May)5ft (1.5m)10s

Table - waves today at Siriu. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Mon night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tue
2
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
6 PM
9 PM
12 AM
3 AM
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
1
1
2
2
1
1
1
1
0
0
0
1
2
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.1
SE
10
1.4
SE
10
1.7
SE
10
1.8
SE
11
1.7
SE
11
1.5
SSE
10
1.3
SSE
10
1.2
SSE
10
1.2
SSE
10
1.1
SSE
10
1.1
SSE
10
0.9
SE
9
0.9
SE
9
0.9
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.7
SE
9
0.8
SSE
8
0.9
SSE
6
1.2
S
6
0.9
S
6
Wave Graph
Metric surfscale
Energy kJ
225
392
616
716
652
445
353
281
275
214
210
125
123
128
101
99
97
95
93
75
88
56
105
58
Wind (km/h)
5
WNW
10
NNW
10
NNE
10
ENE
5
NE
5
NNW
10
NNW
5
NW
5
WNW
5
SW
10
SE
10
SE
5
S
10
SW
5
SW
5
WSW
5
SW
10
SW
10
S
20
S
20
SSW
15
SSW
15
SW
15
SW
glassy
cross-off
cross-on
on
cross-on
glassy
cross-off
cross-off
glassy
glassy
cross-on
cross-on
glassy
cross-off
cross-off
glassy
glassy
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
High Tide
1:35PM0.72m
00:59AM0.61m
2:10PM0.73m
1:29AM0.62m
2:44PM0.72m
2:00AM0.63m
Low Tide
7:18AM0.10m
8:12PM0.31m
7:50AM0.08m
8:49PM0.34m
8:23AM0.07m
9:25PM0.36m
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
5:25
5:25
5:25
Temp °C
17
18
19
20
17
17
16
16
16
18
20
19
17
17
16
15
15
16
18
18
17
16
16
15
17
18
19
20
17
18
16
16
16
19
20
19
17
17
16
16
15
16
17
16
15
14
14
13
Swell 1
Height (m)
Direction
Period (s)
1.1
SE
10
1.4
SE
10
1.7
SE
10
1.8
SE
11
1.7
SE
11
1.5
SSE
10
1.3
SSE
10
1.2
SSE
10
1.2
SSE
10
1.1
SSE
10
1.1
SSE
10
0.9
SE
9
0.9
SE
9
0.9
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.8
SE
9
0.7
SE
9
0.8
SSE
8
0.6
SSE
8
1
S
6
0.9
S
6
Energy kJ
225
392
616
716
652
445
353
281
275
214
210
125
123
128
101
99
97
95
93
75
88
45
81
58
Swell 2
Height (m)
Direction
Period (s)
0.5
E
7
0.5
E
7
0.1
E
7
0.1
E
7
0.1
E
9
0.7
E
7
0.8
E
7
0.8
E
6
0.8
E
7
0.8
ESE
6
0.7
E
6
0.7
E
6
0.7
E
6
0.7
E
6
0.7
E
6
0.6
E
6
0.6
E
6
0.6
E
6
0.5
E
6
0.5
E
6
0.5
E
6
0.4
ENE
6
0.4
SE
8
0.6
SE
8
Energy kJ
23
22
1
1
2
43
56
54
56
55
40
41
41
39
39
29
29
28
20
20
20
13
24
42
Swell 3
Height (m)
Direction
Period (s)
0.1
E
7
0.1
E
7
0.9
SE
10
0.8
E
6
0.8
S
10
0.6
S
10
0.5
S
9
0.5
S
9
0.5
S
9
0.4
S
9
0.4
S
9
0.4
S
8
0.4
S
8
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
Energy kJ
1
1
137
51
123
64
42
40
39
23
24
23
22
33
31
31
28
27
Wind waves
Height (m)
Direction
Period (s)
0.3
NNE
3
0.3
NNE
3
0.3
N
3
0.3
N
3
0.3
N
3
0.3
SSW
3
0.4
SSW
3
0.4
S
8
0.6
S
5
0.9
SSE
6
1.2
S
6
1.1
S
6
Energy kJ
1
1
1
1
1
1
3
21
15
56
105
86
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
2
3
2
2
2
2
2
1
2
2
2
1
1
1
1
1
1
1
1
2
1
Distance (km)
0
0
9
27
9
0
0
0
0
0
13
38
0
0
0
0
0
0
10
15
56
0
0
0
Best forecast wave conditions in Santa Catarina - Sul
Rating
(10 max)
2
3
3
3
3
3
2
3
2
2
2
2
2
2
1
1
1
1
1
1
1
1
2
2
Best forecast wave conditions in Brazil
Rating
(10 max)
2
3
3
3
3
3
2
3
2
3
2
3
2
2
1
1
1
1
1
1
1
2
2
2
Header Global
Rating
(10 max)
5
5
6
8
7
7
7
7
7
6
5
5
5
5
5
5
5
4
5
5
5
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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