Barre do Sai Surf Forecast

/ Santa Catarina – Norte (41 surf breaks) /

Brazil (447 surf breaks)

Surf Forecasts:

Barre do Sai surfForecast / Santa Catarina – Norte / Brazil

12 Day Weather and Surf, issued 2 pm Wednesday 17 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

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

Today's Barre do Sai sea temperature is 20.1° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Barre do Sai this week:

The surf forecast for Barre do Sai over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 3AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Barre do Sai in the next 12 days are 2.0m 8s and forecast to arrive on Tuesday (Sep 23) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Thu 18th Sep)	4.5ft (1.4m) 11s
Best Surf	9AM (Thu 18th Sep)	4.5ft (1.4m) 11s
Most Powerful	6AM (Tue 23rd Sep)	6.5ft (2.0m) 8s

Table - best surf conditions forecast for Barre do Sai over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 2mm), mostly falling on Wed night. Warm (max 24°C on Sat morning, min 16°C on Thu night). Wind will be generally light.											Days 3-6 Weather Summary Heavy rain (total 37mm), heaviest during Sun night. Warm (max 24°C on Sun morning, min 13°C on Mon night). Winds increasing (calm on Sun afternoon, fresh winds from the SSE by Mon afternoon).
	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	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	2	3	2	2	2	0	1	1	0	1	0	0	1	0	1	2	3	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	SE	ESE	ESE	ESE	E	E	E	E	E	ESE	E	SE	SSE	SE	SE	SE
Period(s) (?)	13	10	11	11	10	11	9	8	8	9	9	9	8	9	9	9	8	9	9	6	10
Wave Graph (?)
kJ (?)	437	435	460	452	227	191	101	68	73	127	99	96	68	102	106	61	210	525	78	40	92
Wind (km/h)	SE	SSE	SSE	ESE	W	NNE	ENE	NW	SE	ENE	WSW	NNE	S	WSW	N	N	SW	SW	ESE	ESE	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	glass	on	off	glass	cross- on	glass	glass	cross- on	cross- off	cross	cross- on	cross- off	cross- off	cross- off	cross- off	glass	on	on	cross- on
High Tide / height (m)		12:12AM 1.07		1:11PM 1.27	12:55AM 1.22		1:42PM 1.34	1:32AM 1.35		2:12PM 1.38	2:07AM 1.43		2:40PM 1.38	2:40AM 1.46		3:08PM 1.36		3:12AM 1.45	3:34PM 1.31		3:44AM 1.40
Low Tide / height (m)		7:46PM 0.50	7:27AM 0.15		8:00PM 0.45	7:47AM 0.08		8:04PM 0.41	8:00AM 0.05		8:02PM 0.34	8:13AM 0.04		8:09PM 0.26	8:28AM 0.05		8:25PM 0.19	8:47AM 0.08		8:46PM 0.14	9:08AM 0.15

	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	-	-	6:07	-	-	6:07	-	-	6:05	-	-	6:05	-	-	6:03	-	-	6:03	-	-	6:01
Sunset	6:07	-	-	6:07	-	-	6:08	-	-	6:08	-	-	6:08	-	-	6:09	-	-	6:09	-	-

Rain (mm)	-	2	-	-	-	-	-	-	-	-	1	2	3	17	12	2	-	-	-	2	2
Temp. °C	21	19	21	21	19	22	22	19	24	23	21	24	23	20	21	22	17	19	18	18	17
Feels °C (?)	21	19	21	21	20	21	22	20	24	24	24	27	25	21	22	23	14	17	15	17	17

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 - Norte

Wind Update Continuing clean conditions at Barre do Sai (calm at Itapoa 11 km from Barre do Sai). A 1.9m groundswell from the ESE
49 minutes ago Barre do Sai

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Actual: 49 min ago

0 km/h

Clean

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Barre do Sai 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 Barre do Sai Surf forecast

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

Barre do Sai is 13 km (8 miles) from Guaratuba. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Guaratuba. Guaratuba has rooms for a wide range of budgets as well as car hire and transport links.