Backdoor Surf Forecast

/ Ericeira (18 surf breaks) /

Portugal (226 surf breaks)

Surf Forecasts:

Backdoor surfForecast / Ericeira / Portugal

48hr Weather and Surf, issued 6 pm Wednesday 22 Oct 2025 WEST

Forecast update in hr min s Forecast update imminent

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

Today's Backdoor sea temperature is 18.2° C
(Which is slightly cooler than normal)

How big are the waves at Backdoor today?

The current surf forecast for Backdoor at 12AM is: 1.3m 13s primary swell from a West direction and 1.7m 8s secondary swell from a West-northwest direction (forecast issued at 06:00pm October 22). The wind direction is predicted to be onshore.

Time (WEST) & Date	Wave Height	Wave Period
Morning (23 Oct)	7ft (2.2m)	12s
Afternoon (23 Oct)	8ft (2.5m)	11s
Evening (23 Oct)	7ft (2.2m)	12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 22			Thursday 23								Friday 24								Saturday 25
	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	1	2	2	3	2	2	3	4	4	3	2	1	1	1	2	1	1	2	2	2	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	WNW	WNW	W	W	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	WNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW
Period(s) (?)	9	14	14	13	13	13	12	11	12	12	12	12	12	10	11	14	13	12	12	12	11	11	14	14
Wave Graph (?)
kJ (?)	232	346	453	591	1739	1697	1332	1626	1686	1541	1355	1066	791	625	661	1774	1573	1278	1177	1044	698	560	633	1208
Wind (km/h)	SW	SW	WSW	WSW	W	WNW	N	N	NNW	N	NE	SSW	SSW	SSW	SW	SW	WSW	WSW	SW	SW	SW	SW	SW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	on	on	cross- on	cross- off	cross	cross	cross	glass	glass	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)	3:53PM 2.78					4:07AM 2.80				4:24PM 2.69				4:37AM 2.74				4:55PM 2.57				5:08AM 2.64
Low Tide / height (m)			9:56PM 0.29					10:14AM 0.29				10:24PM 0.37				10:45AM 0.38				10:54PM 0.49				11:19AM 0.50

	Wednesday 22			Thursday 23								Friday 24								Saturday 25
Sunrise	-	-	-	-	-	-	7:54	-	-	-	-	-	-	-	7:54	-	-	-	-	-	-	-	7:56	-
Sunset	6:50	-	-	-	-	-	-	-	6:49	-	-	-	-	-	-	-	6:46	-	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1	1	-
Temp. °C	21	20	20	20	20	20	18	19	18	17	16	16	18	19	20	21	21	20	20	20	20	20	20	21
Feels °C (?)	21	20	20	21	21	21	16	17	16	16	16	16	18	20	20	20	20	20	20	20	21	21	20	20

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 Ericeira

Wind Update Continuing clean conditions at Backdoor (light winds from the W.(Wind varies from 230 to 310 degs) at Cascais Airport 22 km from Backdoor). 1.7m 9s swell from the WNW with a 0.9m 13s groundswell from the W. 2 swells combining to make bigger set waves.
3 hours 11 minutes ago Backdoor

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22 km away, 3 h 11 min ago

9 km/h

0.0

18.2

Air / Water (°C)

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