Port Blanc Surf Forecast

/ Brittany – Morbihan (22 surf breaks) /

France (410 surf breaks) / Lat Long: (47.51° N 3.15° W)

Surf Forecasts:

Port Blanc surfForecast / Brittany – Morbihan / France

48hr Weather and Surf, issued 1 pm Thursday 21 Aug 2025 CEST

Forecast update in hr min s Forecast update imminent

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

Today's Port Blanc sea temperature is 18.9° C
(Which is normal for this time of year)

How big are the waves at Port Blanc today?

The current surf forecast for Port Blanc at 5PM is: 0.7m 3s primary swell from a West direction and 0.1m 13s secondary swell from a West direction, 0.1m 16s secondary swell from a West direction (forecast issued at 01:00pm August 21). The wind direction is predicted to be onshore.

Time (CEST) & Date	Wave Height	Wave Period
Morning (21 Aug)	1ft (0.3m)	6s
Afternoon (21 Aug)	1ft (0.3m)	6s
Evening (21 Aug)	1ft (0.3m)	15s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 21					Friday 22								Saturday 23								Sunday 24
	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM
Rating (10 max)	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	1	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	W	W	W	WSW	WSW	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W	W
Period(s) (?)	6	6	3	4	14	13	13	13	12	12	11	11	11	10	10	10	10	10	9	9	9	9	9	8
Wave Graph (?)
Energy (?)	15	10	19	61	54	69	132	118	146	181	171	156	169	146	129	95	94	88	73	63	70	68	49	47
Wind (km/h)	N	W	W	W	NNE	NE	NE	NE	ENE	SSW	W	WNW	NE	NE	NE	ENE	E	S	WSW	NW	N	NE	ENE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	on	on	on	cross- off	cross- off	cross- off	cross- off	off	cross- on	on	cross- on	cross- off	cross- off	cross- off	cross- off	off	cross	on	cross- on	cross	cross- off	off	off
High Tide / height (m)			4:47PM 4.15					5:13AM 4.01				5:28PM 4.38				5:50AM 4.17				6:04PM 4.51				6:23AM 4.24
Low Tide / height (m)	10:16AM 0.75				10:48PM 0.47					11:02AM 0.49				11:30PM 0.26				11:42AM 0.29				12:08AM 0.13

	Thursday 21					Friday 22								Saturday 23								Sunday 24
Sunrise	-	-	-	-	-	-	-	7:16	-	-	-	-	-	-	-	7:18	-	-	-	-	-	-	-	7:18
Sunset	-	-	-	9:15	-	-	-	-	-	-	-	9:13	-	-	-	-	-	-	-	9:10	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	18	19	20	22	18	16	15	14	17	18	19	20	20	18	16	15	16	20	22	22	23	20	20	20
Feels °C (?)	16	15	15	18	13	11	12	11	15	15	14	15	16	14	12	12	13	17	18	17	19	15	15	15

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 Brittany - Morbihan

Wind Update Onshore wind has changed to cross-on at Port Blanc (light winds from the WNW at Quiberon 4 km from Port Blanc). 0.7m 3s local chop from the W with a 0.2m 15s groundswell from the WSW. 2 swells combining to make bigger set waves.
25 minutes ago Port Blanc

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Actual: 25 min ago

13 km/h

WNW

Cross-On

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