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Surf Forecasts:

Laguna (Os Molhes) surfForecast / Santa Catarina – Sul / Brazil

information circle12 Day Weather and Surf, issued 2 am Thursday 20 Nov 2025 -03
Forecast update in hr  min  s Forecast update imminent
Laguna (Os Molhes) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Laguna (Os Molhes) sea temperature is
20.7° C
 (Which is 1.5°C colder than average for this time of year)

Best Forecast Surf Conditions for Laguna (Os Molhes) this week:

The surf forecast for Laguna (Os Molhes) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 22) at 12AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.8m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Laguna (Os Molhes) in the next 12 days are 2.3m 14s and forecast to arrive on Thursday (Nov 20) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 13s period and expected on Thursday (Nov 20) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 22nd Nov)2.5ft (0.7m) 12s
Best Surf 9PM (Sun 23rd Nov)4.5ft (1.3m) 9s
Most Powerful12PM (Thu 20th Nov)7.5ft (2.3m) 14s

Table - best surf conditions forecast for Laguna (Os Molhes) over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 18mm), heaviest on Sat night. Warm (max 24°C on Fri morning, min 17°C on Sat night). Winds decreasing (strong winds from the NE on Thu afternoon, light winds from the SSE by Sat afternoon).

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Sun morning. Warm (max 20°C on Mon afternoon, min 16°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
1
1
0
1
3
2
2
1
0
0
1
0
1
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.2
SSE
2.1
SSE
1.3
SSE
0.9
SSE
0.8
SSE
0.7
SSE
0.6
SSE
0.5
ENE
1.7
SSE
2.2
SSE
1.7
SE
1.2
SSE
1.1
ESE
1.2
ESE
1.3
ESE
1.4
E
1.4
E
1.4
E
1.4
ESE
1.4
ESE
1.3
ESE
Period(s) (?)1514131312121161010109677788899
Wave
Graph
(?)Metric surfscale
Energy kJ (?)221816575632731951409320551980557222101131161209233257290318289
Wind
(km/h)
25
NE
45
NE
30
NNE
30
NNE
40
NE
25
SW
15
SW
15
SSE
20
SE
20
SSE
15
SSE
5
S
0
ENE
15
E
10
NE
5
ENE
20
ENE
10
NE
5
ENE
15
E
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on		ononoffoffcross-
off		crosscross-
off		cross-
off		cross-
off		glasscross-
on		ononononglasscross-
on		on
High Tide
/ height (m)
3:30PM
0.45
4:13AM
0.48
4:09PM
0.46
4:48AM
0.48
4:44PM
0.46
5:22AM
0.48
5:17PM
0.46
6:04AM
0.47
5:54PM
0.45
7:07AM
0.45
6:48PM
0.44
8:18AM
0.45
8:01PM
0.43
Low Tide
/ height (m)
7:48PM
0.14
8:16AM
0.21
8:14PM
0.16
8:42AM
0.24
8:38PM
0.17
9:08AM
0.27
9:00PM
0.20
10:17AM
0.30
9:35PM
0.23
11:51AM
0.32
11:50PM
0.23
12:41PM
0.34
12:44AM
0.24
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise5:11--5:11--5:11--5:09--5:09--5:09--5:09--
Sunset-6:49--6:50--6:51--6:52--6:52--6:52--6:53-
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
heavy rain
light rain
cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
Rain (mm)
-------4143-----------
Temp. °C202019242320212019181819192020202020202020
Feels °C (?)141313191820201918161517161718181720181818
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Laguna (Os Molhes) at:
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Information about the Laguna (Os Molhes) Surf forecast

The above surf forecast table for Laguna (Os Molhes) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Laguna (Os Molhes) can be found by selecting the local surf guide option on the grey menu. Our Laguna (Os Molhes) 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 (Laguna (Os Molhes)) 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 Laguna (Os Molhes) 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.

Are you planning a holiday in Santa Catarina - Sul? If you are looking for accommodation near Laguna (Os Molhes), camping, hotels and holiday cottages in Santa Catarina - Sul, consider staying in Laguna which is 3 km (2 miles) away. Other places in and around Santa Catarina - Sul where you can find information about places to rent, and car hire include Tubarao which is 25 km (16 miles) away, Imbituba, Braco do Norte and Sao Jose.

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