Hermenegildo Surf Forecast

/ Rio Grande Do Sul (19 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (33.59° S 53.16° W)

Surf Forecasts:

Hermenegildo surfForecast / Rio Grande Do Sul / Brazil

48hr Weather and Surf, issued 8 am Thursday 18 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

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

Today's Hermenegildo sea temperature is 16.0° C
(Which is 2.5°C warmer than normal for this time of year)

How big are the waves at Hermenegildo today?

The current surf forecast for Hermenegildo at 2PM is: 0.5m 12s primary swell from a Southeast direction and 1.1m 5s secondary swell from a East direction (forecast issued at 08:00am September 18). The wind direction is predicted to be cross-onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (18 Sep)	2ft (0.6m)	12s
Afternoon (18 Sep)	4ft (1.2m)	5s
Evening (18 Sep)	4.5ft (1.4m)	6s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 18						Friday 19								Saturday 20								Sun 21
	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)	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	SE	SE	ENE	ENE	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Period(s) (?)	12	12	12	12	5	6	7	7	8	8	8	9	9	9	9	9	9	9	9	8	8	8	8	8
Wave Graph (?)
kJ (?)	114	112	67	75	106	131	134	147	138	129	138	152	155	123	119	94	94	94	73	69	66	34	35	34
Wind (km/h)	ENE	ENE	ENE	ENE	NE	NE	NE	NE	NE	NNE	NNE	NNW	SW	SSE	S	SE	SSE	ESE	ESE	ENE	ENE	NE	N	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross	cross	cross	cross	cross- off	glass	cross- on	cross- on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	cross- off	off
High Tide / height (m)	3:54AM 0.32		10:42AM 0.32		4:18PM 0.60		10:14PM 0.30		4:52AM 0.30		11:30AM 0.34		5:19PM 0.56		11:13PM 0.34		5:50AM 0.31			12:14PM 0.36		6:17PM 0.53		12:06AM 0.37
Low Tide / height (m)		7:09AM 0.08		12:30PM 0.29		8:12PM 0.24		1:39AM 0.08		8:00AM 0.09		1:43PM 0.27		8:55PM 0.25		2:40AM 0.08		8:53AM 0.10		2:47PM 0.23			9:40PM 0.26

	Thursday 18						Friday 19								Saturday 20								Sun 21
Sunrise	-	6:28	-	-	-	-	-	-	-	6:26	-	-	-	-	-	-	-	6:24	-	-	-	-	-	-
Sunset	-	-	-	-	6:24	-	-	-	-	-	-	-	6:25	-	-	-	-	-	-	-	6:27	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	3	1	1	-	1	1	-	1	1	-	-	-
Temp. °C	15	16	16	16	16	16	16	16	16	18	23	25	23	20	16	16	15	16	17	17	16	16	17	17
Feels °C (?)	13	13	14	13	13	13	14	15	15	18	23	26	25	22	15	15	14	15	17	17	15	14	16	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 Rio Grande Do Sul

Wind Update Continuing clean conditions at Hermenegildo (calm at Jaguarao 117 km from Hermenegildo). A 0.7m groundswell from the SE
2 hours 22 minutes ago Hermenegildo

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