Cassino surf break

Cassino surfForecast / Rio Grande Do Sul / Brazil

information circle48hr Weather and Surf, issued 8 am Thursday 21 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
15.1° C
(Which is 2.3°C colder than average for this time of year)

How big are the waves at Cassino today?

The current surf forecast for Cassino at 3PM is: 2.0m 16s primary swell from a South-southeast direction and 1.1m 16s secondary swell from a Southeast direction (forecast issued at 08:00am May 21). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (-03) & DateWave HeightWave Period
Morning (21 May)6ft (1.9m)13s
Afternoon (21 May)6.5ft (2.0m)16s
Evening (21 May)8ft (2.5m)14s

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 16°C on Fri night, min 11°C on Thu morning). Wind will be generally light.

Thursday
21
Friday
22
Saturday
23
Sun
24
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)
3
3
4
4
!
!
3
!
!
!
3
2
2
0
0
0
0
0
0
0
0
0
0
0
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)
2
SSE
13
1.9
SSE
13
1.7
SSE
13
2
SSE
16
2.5
SSE
15
2.5
SSE
14
1.8
SSE
14
2.3
SSE
14
2.3
SSE
13
2.1
SSE
13
2
SSE
13
1.8
SSE
13
1.3
SSE
12
1.2
SSE
12
1.1
SSE
12
1.1
SSE
12
1
SSE
12
1
SSE
11
1
SSE
11
1
SSE
11
0.9
SSE
11
0.9
SSE
11
0.8
SSE
10
0.8
SSE
10
Wave Graph
Metric surfscale
Energy kJ
1380
1193
953
2046
3265
2840
1247
2019
1777
1490
1336
1060
551
419
347
336
275
251
242
218
180
176
138
127
Wind (km/h)
20
SSW
15
SW
15
SW
15
SSW
15
S
15
S
10
S
10
S
15
S
15
S
15
SSE
15
SSE
15
SSE
10
SE
10
ESE
10
ESE
10
ESE
10
ESE
15
SE
15
ESE
10
SE
10
ESE
10
E
10
E
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
11:52AM0.25m
5:44PM0.26m
00:00AM0.69m
12:41PM0.25m
6:37PM0.23m
00:57AM0.64m
1:33PM0.26m
7:49PM0.22m
1:55AM0.57m
Low Tide
7:54AM-0.10m
2:37PM0.14m
7:21PM0.23m
8:46AM-0.05m
3:35PM0.14m
8:04PM0.21m
9:40AM0.02m
4:40PM0.15m
8:48PM0.22m
part cloud
cloud
cloud
cloud
clear
clear
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
clear
part cloud
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:15
7:15
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:36
5:35
5:35
5:34
Temp °C
11
11
13
13
13
13
13
13
13
13
13
13
14
15
16
16
16
16
16
16
16
16
16
16
6
6
9
9
9
9
10
10
10
10
10
10
11
13
14
14
14
14
13
13
14
14
15
15
Swell 1
Height (m)
Direction
Period (s)
2
SSE
13
1.9
SSE
13
1.7
SSE
13
2
SSE
16
2.5
SSE
15
2.5
SSE
14
1.8
SSE
14
2.3
SSE
14
2.3
SSE
13
2.1
SSE
13
2
SSE
13
1.8
SSE
13
1.3
SSE
12
1.2
SSE
12
1.1
SSE
12
1.1
SSE
12
1
SSE
12
1
SSE
11
1
SSE
11
1
SSE
11
0.9
SSE
11
0.9
SSE
11
0.8
SSE
10
0.8
SSE
10
Energy kJ
1380
1193
953
2046
3265
2840
1247
2019
1777
1490
1336
1060
551
419
347
336
275
251
242
218
180
176
138
127
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
18
0.9
SSE
17
1.1
SE
16
0.1
E
10
0.1
E
9
0.1
E
9
Energy kJ
83
504
625
2
2
2
Swell 3
Height (m)
Direction
Period (s)
0.1
E
9
Energy kJ
2
Wind waves
Height (m)
Direction
Period (s)
2
SSE
15
1.9
SSE
14
1.7
SSE
14
1.7
SSE
13
1.7
SSE
13
1.4
SSE
13
1.4
SSE
13
0.3
ENE
3
Energy kJ
1712
1435
1008
965
936
679
669
2
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
3
3
3
3
2
2
2
2
4
4
3
3
1
1
2
2
1
2
1
1
1
Distance (km)
432
274
235
235
235
235
235
235
235
235
235
515
540
362
278
235
235
320
286
240
286
235
210
210
Best forecast wave conditions in Rio Grande Do Sul
Rating
(10 max)
4
4
4
4
5
4
4
4
4
3
3
3
3
3
2
2
Best forecast wave conditions in Brazil
Rating
(10 max)
6
5
5
5
4
5
5
5
5
4
5
4
4
5
4
4
4
4
4
4
4
3
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
5
5
  • 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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