Cassino surf break

Cassino surfForecast / Rio Grande Do Sul / Brazil

information circle48hr Weather and Surf, issued 8 pm Monday 18 May 2026 -03
Forecast update in hr  min  s Forecast update imminent
Cassino surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cassino sea temperature is
15.5° C
(Which is 2.1°C colder than average for this time of year)

How big are the waves at Cassino today?

The current surf forecast for Cassino at 3AM is: 1.4m 16s primary swell from a South-southeast direction (forecast issued at 08:00pm May 18). The wind direction is predicted to be offshore and the swell rating is 3.

Time (-03) & DateWave HeightWave Period
Morning (19 May)4.5ft (1.4m)14s
Afternoon (19 May)3.5ft (1.0m)13s
Evening (19 May)3ft (0.9m)12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 14°C on Tue afternoon, min 8°C on Mon night). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thursday
21
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
Rating
(10 max)
2
3
3
3
3
3
2
2
2
2
2
2
3
3
2
3
3
3
!
!
!
3
3
3
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1
SSE
10
0.8
SSE
18
1.3
SSE
17
1.4
SSE
16
1.3
SSE
15
1.4
SSE
14
1.2
SSE
14
1
SSE
13
0.9
SSE
13
0.9
SSE
12
1
S
12
1
SSE
12
1.2
SSE
12
1.2
SSE
14
1.5
SSE
15
1.8
SSE
16
1.9
SSE
16
2
SSE
15
2.1
SSE
14
2.1
SSE
14
2.5
SSE
13
1.8
SSE
13
1.7
SSE
13
1.6
SSE
13
Wave Graph
Metric surfscale
Energy kJ
222
390
980
978
773
731
497
367
280
263
299
313
469
596
960
1656
1785
1751
1773
1652
2507
1094
983
816
Wind (km/h)
10
WSW
10
W
10
WNW
15
W
15
W
20
W
20
W
20
W
15
W
15
W
15
W
20
W
20
W
25
W
25
WSW
20
SW
15
SW
20
SSW
20
SW
15
SW
20
SSW
15
SW
20
SSW
20
SW
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
3:40PM0.39m
9:14PM0.66m
10:15AM0.28m
4:19PM0.35m
10:10PM0.71m
11:04AM0.26m
4:59PM0.30m
11:05PM0.72m
11:52AM0.25m
Low Tide
5:23PM0.36m
6:15AM-0.10m
12:51PM0.17m
6:00PM0.32m
7:04AM-0.12m
1:42PM0.15m
6:40PM0.27m
7:54AM-0.10m
2:37PM0.14m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
clear
clear
cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:13
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:36
5:36
Temp °C
13
12
11
10
8
8
11
14
13
12
10
9
8
8
12
14
14
13
12
12
12
12
13
13
10
9
8
6
4
4
6
9
9
8
6
5
3
3
7
9
10
9
7
8
8
8
8
8
Swell 1
Height (m)
Direction
Period (s)
1
SSE
10
1.1
SSE
13
1.3
SSE
17
1.4
SSE
16
1.3
SSE
15
1.4
SSE
14
1.2
SSE
14
1
SSE
13
0.9
SSE
13
0.9
SSE
12
1
S
12
1
SSE
12
1.2
SSE
12
1.2
SSE
14
1.5
SSE
15
1.8
SSE
16
1.9
SSE
16
2.5
SSE
13
1.8
SSE
13
1.7
SSE
13
1.6
SSE
13
Energy kJ
222
390
980
978
773
731
497
367
280
263
299
313
469
596
960
1656
1785
2507
1094
983
816
Swell 2
Height (m)
Direction
Period (s)
0.2
SSE
20
0.4
SSE
19
0.7
SSE
15
0.5
SE
18
0.8
SSE
17
Energy kJ
39
139
196
155
351
Swell 3
Height (m)
Direction
Period (s)
0.8
SSE
18
Energy kJ
381
Wind waves
Height (m)
Direction
Period (s)
0.3
WSW
3
0.5
W
3
0.4
WSW
3
0.4
WSW
3
0.4
WSW
3
0.6
W
3
0.6
W
3
0.6
W
4
0.7
WSW
4
0.8
WSW
4
0.5
WSW
4
2
SSE
15
2.1
SSE
14
2.1
SSE
14
1.9
SSE
13
Energy kJ
1
6
3
3
3
8
8
10
15
17
8
1751
1773
1652
1249
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
3
3
2
2
1
2
2
2
4
3
4
4
5
4
4
5
4
4
4
3
3
Distance (km)
9
9
9
9
210
236
235
235
210
9
9
224
224
235
293
235
529
336
293
274
274
235
235
235
Best forecast wave conditions in Rio Grande Do Sul
Rating
(10 max)
3
3
3
4
5
4
4
4
4
4
3
3
3
3
4
4
4
5
5
4
4
4
4
Best forecast wave conditions in Brazil
Rating
(10 max)
3
3
3
4
5
5
4
4
4
4
4
5
4
5
4
4
5
7
9
9
5
5
4
5
Header Global
Rating
(10 max)
4
4
4
4
4
4
4
4
5
5
5
5
4
5
4
5
5
4
4
5
4
4
4
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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