Kerhillio Surf Forecast

/ Brittany – Morbihan (22 surf breaks) /

France (410 surf breaks) / Lat Long: (47.61° N 3.16° W)

Surf Forecasts:

Kerhillio surfForecast / Brittany – Morbihan / France

12 Day Weather and Surf, issued 1 pm Thursday 21 Aug 2025 CEST

Forecast update in hr min s Forecast update imminent

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

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

Best Forecast Surf Conditions for Kerhillio this week:

The surf forecast for Kerhillio over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 21) at 8PM. The primary swell is predicted to be 0.8m and 4s period with a secondary swell of 0.7m and 4s. Another secondary swell of 0.2m and 15s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kerhillio in the next 12 days are 2.5m 19s and forecast to arrive on Tuesday (Aug 26) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (Aug 22) at 2AM.

Wave Type	Time (CEST) & Date	Wave Height & Period
Next good surf (1 star+)	8PM (Thu 21st Aug)	2.5ft (0.8m) 4s
Best Surf	8AM (Tue 26th Aug)	7.5ft (2.3m) 19s
Most Powerful	11AM (Tue 26th Aug)	8ft (2.5m) 19s

Table - best surf conditions forecast for Kerhillio 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 23°C on Sat afternoon, min 14°C on Fri morning). Wind will be generally light.											Days 3-6 Weather Summary Mostly dry. Warm (max 30°C on Mon afternoon, min 14°C on Wed morning). Mainly fresh winds.
	Thu 21		Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26			Wednesday 27
	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	1	1	0	1	0	0	1	0	0	4	3	0	4	3	0	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	WSW	W	W	W	W	W	W	W	W	WSW	W	W	WSW	WSW	WSW	WSW	W	W	W	W
Period(s) (?)	3	13	12	11	10	10	9	9	8	8	11	10	9	22	19	17	15	14	13	12	12
Wave Graph (?)
Energy (?)	19	69	146	171	146	94	73	68	46	46	86	158	153	1562	4685	4047	2480	1549	1121	633	613
Wind (km/h)	WNW	NE	ENE	W	NE	E	WSW	NE	E	SW	ENE	ESE	SSW	NE	NW	W	N	NW	W	W	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	off	off	cross- on	off	cross- off	on	off	cross- off	on	off	cross- off	cross- on	off	cross	cross- on	cross- off	cross	cross- on	cross- on	cross
High Tide / height (m)	4:42PM 4.04		5:08AM 3.90	5:23PM 4.26		5:46AM 4.05	5:59PM 4.39		6:19AM 4.12	6:31PM 4.42		6:49AM 4.13	7:01PM 4.36		7:17AM 4.08	7:30PM 4.22		7:44AM 3.97	7:58PM 4.02		8:12AM 3.82
Low Tide / height (m)		10:43PM 0.44	10:57AM 0.46		11:26PM 0.23	11:38AM 0.27		12:04AM 0.11	12:15PM 0.16		12:40AM 0.08	12:51PM 0.15		1:15AM 0.14	1:26PM 0.24		1:48AM 0.30		2:01PM 0.41	2:21AM 0.53

	Thu 21		Friday 22			Saturday 23			Sunday 24			Monday 25			Tuesday 26			Wednesday 27
Sunrise	-	-	7:16	-	-	7:18	-	-	7:18	-	-	7:20	-	-	7:22	-	-	7:22	-	-	7:24
Sunset	9:15	-	-	9:13	-	-	9:10	-	-	9:08	-	-	9:07	-	-	9:05	-	-	9:04	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1
Temp. °C	22	22	17	21	21	18	23	23	22	28	28	24	30	29	23	26	24	17	19	19	17
Feels °C (?)	19	20	14	19	17	15	20	19	18	25	24	20	27	26	20	21	20	16	16	14	13

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 Continuing clean conditions at Kerhillio (calm at Plouharnel 4 km from Kerhillio). 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.
43 minutes ago Kerhillio

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Actual: 43 min ago

3 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 Kerhillio 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 Kerhillio Surf forecast

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

Kerhillio is 21 km (13 miles) from the city of Lanester. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lanester. Lanester has rooms for a wide range of budgets as well as car hire and transport links.