Porthleven Surf Forecast

/ Cornwall (South) (25 surf breaks) /

UK (471 surf breaks) / Lat Long: (50.09° N 5.33° W)

Surf Forecasts

Porthleven surfForecast / Cornwall (South) / UK

48hr Weather and Surf, issued 6 pm Sunday 17 Aug 2025 BST

Forecast update in hr min s Forecast update imminent

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

Today's Porthleven sea temperature is 17.3° C
(Which is normal for this time of year)

How big are the waves at Porthleven today?

The current surf forecast for Porthleven at 11PM is: 0.2m 13s primary swell from a South-southwest direction and 0.1m 7s secondary swell from a West direction (forecast issued at 06:00pm August 17). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (BST) & Date	Wave Height	Wave Period
Morning (17 Aug)	-	-
Afternoon (17 Aug)	0.5ft (0.2m)	13s
Evening (17 Aug)	0.5ft (0.2m)	13s

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

Hourly 12 Days

South Cornwall Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Sunday 17			Monday 18								Tuesday 19								Wednesday 20
	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SSW	SSW	S	S	S	WSW	WSW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW	WSW
Period(s) (?)	13	13	13	13	13	13	12	16	16	16	7	7	7	7	7	6	6	6	6	6	6	6	6	6
Wave Graph (?)
Energy (?)	19	19	19	22	31	29	24	15	16	16	16	15	18	19	19	16	16	18	5	3	8	15	7	6
Wind (km/h)	E	E	E	ESE	E	E	E	ESE	E	E	NE	NE	ENE	NE	ENE	ENE	N	N	N	NNE	ENE	NE	NE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	off	off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	cross- off
High Tide / height (m)				12:14AM 3.73				12:57PM 3.72					1:41AM 3.64				2:20PM 3.79				2:59AM 3.75
Low Tide / height (m)		6:19PM 1.14				6:58AM 1.26					7:45PM 1.26				8:27AM 1.28				9:13PM 1.12				9:44AM 1.08

	Sunday 17			Monday 18								Tuesday 19								Wednesday 20
Sunrise	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:15	-	-	-	-	-	-	-	6:16	-	-
Sunset	-	8:37	-	-	-	-	-	-	-	8:35	-	-	-	-	-	-	-	8:32	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	1	-	-	-	-	-	-	2	2	1	-	-	-	-	-	-	-
Temp. °C	18	17	17	18	17	17	17	18	19	19	19	19	18	18	17	19	20	20	20	19	18	16	17	17
Feels °C (?)	12	11	12	13	11	11	12	14	15	16	18	18	17	17	16	18	19	18	18	17	15	14	15	16

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 Cornwall (South)

Wind Update The wind is still cross-off at Porthleven (fresh winds from the E at Culdrose Airport 5 km from Porthleven). 0.2m 6s windswell from the WSW with a 0.1m 8s swell from the SW and a 0.1m 12s groundswell, also from the SW. 3 swells combining to make bigger set waves.
45 minutes ago Porthleven

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Actual: 45 min ago

31 km/h

Cross-Off

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