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

12 Day Weather and Surf, issued 1 pm Monday 13 Oct 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 16.7° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Port Blanc this week:

The surf forecast for Port Blanc over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Oct 14) at 5PM. The primary swell is predicted to be 0.5m and 14s period with a secondary swell of 0.2m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Port Blanc in the next 12 days are 1.2m 10s and forecast to arrive on Monday (Oct 20) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Oct 18) at 2AM.

Wave Type	Time (CEST) & Date	Wave Height & Period
Next good surf (1 star+)	5PM (Tue 14th Oct)	1.5ft (0.5m) 14s
Best Surf	5PM (Tue 14th Oct)	1.5ft (0.5m) 14s
Most Powerful	5PM (Mon 20th Oct)	4ft (1.2m) 10s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 21°C on Tue afternoon, min 11°C on Wed morning). Mainly fresh winds.											Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Thu afternoon, min 11°C on Fri morning). Mainly fresh winds.
	Mon 13		Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	1	0	0	1	0	0	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	WSW	WSW	W	W	W	W	WSW	W	W	W	W	W	WSW	WSW	W	WSW	WSW	W	W	W
Period(s) (?)	10	9	15	14	13	12	11	14	13	12	11	10	10	8	9	12	9	11	9	9	11
Wave Graph (?)
kJ (?)	33	16	22	101	161	99	59	65	168	103	37	18	17	14	15	13	29	88	87	79	143
Wind (km/h)	E	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	E	ENE	E	E	E	ESE	SE	SE	SW	SSW	SW	W
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	cross- off	off	off	cross- off	cross- off	off	cross- off	off	off	off	off	off	off	off	cross- off	cross- off	cross- on	cross- on	cross- on	on
High Tide / height (m)		10:48PM 3.23	11:30AM 3.37		12:47AM 3.10	1:23PM 3.39		2:16AM 3.27		2:37PM 3.61	3:14AM 3.52		3:29PM 3.85	3:56AM 3.76		4:08PM 4.04	4:30AM 3.96		4:41PM 4.17	4:59AM 4.11
Low Tide / height (m)	4:30PM 1.03	4:59AM 1.34		5:54PM 1.25		6:26AM 1.44	7:23PM 1.22		7:48AM 1.31		8:33PM 1.02	8:51AM 1.06		9:24PM 0.78	9:38AM 0.80		10:04PM 0.56	10:17AM 0.57		10:38PM 0.40	10:52AM 0.40

	Mon 13		Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19
Sunrise	-	-	8:27	-	-	8:30	-	-	8:30	-	-	8:33	-	-	8:33	-	-	8:36	-	-	8:37
Sunset	7:29	-	-	7:27	-	-	7:24	-	-	7:23	-	-	7:22	-	-	7:20	-	-	7:17	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	4	1
Temp. °C	20	20	14	21	20	12	19	18	12	19	19	11	18	18	11	17	18	17	17	16	16
Feels °C (?)	15	15	8	16	15	6	14	13	5	14	14	4	13	12	4	14	15	15	13	12	10

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 Offshore wind reported 22 km from Port Blanc (light winds from the NE at Lorient 22 km from Port Blanc). 0.3m 8s swell from the WSW with a 0.2m 10s swell from the W and a 0.1m 14s groundswell, also from the W. 3 swells combining to make bigger set waves.
30 minutes ago Port Blanc
Wind Update Calm condsitions have become offshore at Ste Barbe (light winds from the NE at Lorient 13 km from Ste Barbe). 0.3m 8s swell from the WSW with a 0.2m 10s swell from the W and a 0.1m 14s groundswell, also from the W. 3 swells combining to make bigger set waves.
30 minutes ago Ste Barbe

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22 km away, 30 min ago

13 km/h

0.0

16.7

Air / Water (°C)

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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 Port Blanc 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 Port Blanc Surf forecast

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

Port Blanc is 31 km (19 miles) from Lorient. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lorient. Lorient has rooms for a wide range of budgets as well as car hire and transport links.