Prainha Surf Forecast

/ Santa Catarina – Norte (41 surf breaks) /

Brazil (449 surf breaks) / Lat Long: (26.23° S 48.50° W)

Surf Forecasts:

Prainha surfForecast / Santa Catarina – Norte / Brazil

12 Day Weather and Surf, issued 2 pm Tuesday 18 Nov 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 23.0° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Prainha this week:

The surf forecast for Prainha over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Nov 18) at 6PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.4m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Prainha in the next 12 days are 1.9m 8s and forecast to arrive on Wednesday (Nov 19) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Nov 21) at 9PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	6PM (Tue 18th Nov)	2ft (0.6m) 7s
Best Surf	6PM (Tue 18th Nov)	2ft (0.6m) 7s
Most Powerful	9PM (Wed 19th Nov)	6ft (1.9m) 8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Moderate rain (total 16mm), heaviest on Tue afternoon. Warm (max 23°C on Wed morning, min 17°C on Thu night). Wind will be generally light.											Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Sun afternoon. Warm (max 22°C on Fri afternoon, min 20°C on Fri night). Winds increasing (light winds from the N on Fri night, strong winds from the SE by Sun afternoon).
	Tue 18		Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	SE	SE	SE	SE	SE	SE	SE	SSE	E	SSE	SSE	SE	SE	ESE	SSE	ESE	ESE	ESE
Period(s) (?)	7	8	7	4	8	18	16	14	13	13	12	5	12	11	5	6	6	7	6	6	6
Wave Graph (?)
kJ (?)	33	40	39	17	135	108	196	92	25	27	15	21	13	12	62	67	68	117	122	56	43
Wind (km/h)	SW	WSW	WSW	ESE	SE	ENE	NE	NNE	NNE	NE	N	SSW	SE	SSE	S	SE	SSE	SSE	SE	SE	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	off	off	cross- on	cross	on	on	cross- on	glass	on	cross- on	cross- off	cross	cross	cross- off	cross	cross	cross	cross- on	glass	glass
High Tide / height (m)		1:54AM 1.31		1:59PM 1.18	2:31AM 1.31		2:30PM 1.16		3:08AM 1.29	3:02PM 1.12		3:48AM 1.25	3:37PM 1.09		4:31AM 1.19	4:18PM 1.05		5:20AM 1.13	5:09PM 1.00		6:18AM 1.08
Low Tide / height (m)		7:14PM 0.17	7:38AM 0.29		7:35PM 0.11	8:00AM 0.31		8:00PM 0.08	8:24AM 0.34		8:28PM 0.06	8:50AM 0.38		9:00PM 0.08	9:21AM 0.42		9:37PM 0.12	9:57AM 0.48		10:19PM 0.19	10:40AM 0.55

	Tue 18		Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24
Sunrise	-	-	5:15	-	-	5:15	-	-	5:13	-	-	5:13	-	-	5:13	-	-	5:13	-	-	5:13
Sunset	6:42	-	-	6:43	-	-	6:44	-	-	6:45	-	-	6:45	-	-	6:45	-	-	6:46	-	-

Rain (mm)	11	5	-	-	-	-	-	-	-	-	-	-	-	8	3	6	6	1	1	-	-
Temp. °C	19	19	23	21	21	21	21	21	20	22	21	22	22	21	20	20	20	21	21	20	20
Feels °C (?)	18	19	21	18	17	19	18	18	19	21	21	22	21	20	18	15	17	20	20	19	21

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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Information about the Prainha Surf forecast

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

Prainha is 14 km (9 miles) from Sao Francisco do Sul. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Sao Francisco do Sul. Sao Francisco do Sul has rooms for a wide range of budgets as well as car hire and transport links.