Cassino surf break

Cassino surfForecast / Rio Grande Do Sul / Brazil

information circle12 Day Weather and Surf, issued 2 am Monday 11 Aug 2025 -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
13.1° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Cassino this week:

The surf forecast for Cassino over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 11) at 9AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.3m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cassino in the next 12 days are 1.5m 16s and forecast to arrive on Friday (Aug 15) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Aug 13) at 6PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 11th Aug)3ft (0.9m) 9s
Best Surf 6AM (Thu 14th Aug)4ft (1.2m) 10s
Most Powerful12PM (Fri 15th Aug)5ft (1.5m) 16s

Table - best surf conditions forecast for Cassino over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 17°C on Tue afternoon, min 9°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Sat night. Very mild (max 15°C on Sat morning, min 11°C on Thu night). Wind will be generally light.

Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SE
0.9
ESE
0.9
ESE
0.8
ESE
0.7
SE
0.6
ESE
0.6
ESE
0.5
ESE
1.4
S
1.4
SSE
1.3
SSE
1.3
SSE
0.8
SSE
1.5
SSE
1.2
SSE
1.1
SSE
1
SSE
0.8
SSE
1.1
E
0.7
SSE
0.6
SE
Period(s) (?)9910999997991018151413121271110
Wave
Graph
(?)Metric surfscale
Energy (?)125153172120916265442403322773866661017565450338283227156107
Wind
(km/h)
5
W
5
SSE
10
N
10
NNW
10
N
10
WNW
15
WSW
30
SSW
20
SSW
10
SSW
15
S
15
SSE
20
SE
20
ESE
20
E
25
ENE
25
ENE
15
NE
15
ENE
10
NE
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offglasscrosscross-
off
crosscross-
off
offcross-
off
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
onononcross-
on
oncross-
on
cross-
off
High Tide
/ height (m)
9:26AM
0.14
4:07PM
0.35
9:47PM 2:52AM
0.51 0.35
10:12AM
0.20
4:25PM
0.28
10:40PM
0.51
3:19AM 10:58AM
0.35 0.29
4:39PM
0.23
11:32PM
0.49
11:44AM
0.38
4:30PM
0.19
12:24AM
0.46
12:30PM
0.47
1:16AM
0.42
1:17PM
0.54
2:08AM
0.37
2:06PM
0.59
Low Tide
/ height (m)
11:51AM
0.08
6:04PM 1:25AM
0.31 0.34
7:10AM
0.08
12:53PM
0.12
6:36PM 2:21AM
0.23 0.35
7:35AM
0.10
2:05PM
0.16
7:14PM
0.15
8:01AM
0.13
3:51PM
0.19
7:55PM
0.08
8:25AM
0.18
8:37PM
0.04
8:39AM
0.22
9:21PM
0.02
6:10AM
0.20
10:12PM
0.04
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Sunrise7:09--7:07--7:07--7:05--7:05--7:03--7:03--
Sunset-5:58--5:59--5:59--6:00--6:00--6:00--6:01-
clearclearclearclearclearpart cloudpart cloudcloudpart cloudclearclearclearclearclearpart cloudclearclearlight rainlight rainlight rainlight rain
Rain (mm)
-----------------1254
Temp. °C131413141715131211141312111113151515151514
Feels °C (?)1113111215139671088779101013141513
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Rio Grande Do Sul

  1. weather stationWind Update Continuing clean conditions at Cassino (calm at Rio Grande (86995 -0) 21 km from Cassino). 1.0m 8s swell from the SE with a 0.4m 9s swell from the SSE. 2 swells combining to make bigger set waves.

    Cassino
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21 km away, 49 min ago

0 km/h
E
0.0
13.1
Air / Water (°C)
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cassino surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Cassino Surf forecast

The above surf forecast table for Cassino provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cassino can be found by selecting the local surf guide option on the grey menu. Our Cassino surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Cassino) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Cassino may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Cassino is 10 km (6 miles) from the city of Rio Grande. If you plan a holiday in Rio Grande Do Sul, look for hotels and other accommodation in Rio Grande. Rio Grande has rooms for a wide range of budgets as well as car hire and transport links.

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