Prainha Surf Forecast

/ Santa Catarina – Sul (37 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (27.87° S 48.61° W)

Surf Forecasts:

Prainha surfForecast / Santa Catarina – Sul / Brazil

48hr Weather and Surf, issued 8 am Wednesday 20 Aug 2025 -03

Forecast update in hr min s Forecast update imminent

Prainha surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Prainha sea temperature is 16.2° C
(Which is 2.4°C colder than average for this time of year)

How big are the waves at Prainha today?

The current surf forecast for Prainha at 11AM is: 2.1m 8s primary swell from a East-northeast direction and 0.3m 9s secondary swell from a South-southeast direction, 0.4m 9s secondary swell from a Southeast direction (forecast issued at 08:00am August 20). The wind direction is predicted to be cross-onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (20 Aug)	5.5ft (1.7m)	8s
Afternoon (20 Aug)	10ft (3.0m)	9s
Evening (20 Aug)	6.5ft (2.0m)	9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 20						Thursday 21								Friday 22								Sat 23
	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM
Rating (10 max)	1	0	0	1	2	1	2	2	2	2	2	0	1	1	1	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	ENE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE
Period(s) (?)	8	8	8	9	9	9	9	9	9	8	8	8	8	8	9	9	8	8	8	8	8	8	8	8
Wave Graph (?)
Energy (?)	898	717	644	1859	1769	633	543	461	392	319	304	261	271	276	289	285	573	249	196	176	164	163	176	261
Wind (km/h)	N	NNE	N	N	N	NNW	WNW	W	WSW	SSE	ESE	E	ENE	N	NNW	N	N	N	NNE	NE	NNE	N	N	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross- off	glass	glass	glass	glass	cross- on	on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)				2:07PM 0.77				12:14AM 0.55				2:20PM 0.76				12:38AM 0.64				2:24PM 0.73				1:08AM 0.72
Low Tide / height (m)		6:32AM 0.05				7:41PM 0.35				7:14AM -0.01				8:02PM 0.35				7:51AM -0.04				8:23PM 0.33

	Wednesday 20						Thursday 21								Friday 22								Sat 23
Sunrise	-	6:41	-	-	-	-	-	-	-	6:39	-	-	-	-	-	-	-	6:39	-	-	-	-	-	-
Sunset	-	-	-	5:54	-	-	-	-	-	-	-	5:54	-	-	-	-	-	-	-	5:55	-	-	-	-

Rain (mm)	1	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	18	18	20	23	20	20	20	18	17	18	21	21	18	17	17	17	17	21	26	25	19	18	19	19
Feels °C (?)	18	16	19	22	20	20	19	18	17	18	22	21	19	18	17	17	16	20	25	23	18	17	18	18

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Santa Catarina - Sul

Wind Update Cross-on wind has become offshore at Ferrugem (light winds from the NNW at Florianopolis Airport 47 km from Ferrugem). 2.3m 8s swell from the ENE with a 0.6m 9s swell from the SSE. 2 swells combining to make bigger set waves.
1 hour 16 minutes ago Ferrugem

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24 km away, 1 h 16 min ago

17 km/h

NNW

0.0

16.2

Air / Water (°C)

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