Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Backdoor surfForecast / Ericeira / Portugal

information circle48hr Weather and Surf, issued 5 pm Tuesday 20 Jan 2026 WET
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
14.3° C
 (Which is 1.1°C colder than average for this time of year)

How big are the waves at Backdoor today?

The current surf forecast for Backdoor at 10PM is: 4.0m 15s primary swell from a Northwest direction (forecast issued at 05:00pm January 20). The wind direction is predicted to be cross-onshore.

Time (WET) & DateWave HeightWave Period
Morning (20 Jan)--
Afternoon (20 Jan)11ft (3.5m)15s
Evening (20 Jan)13ft (4.0m)15s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM
Rating
(10 max)
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 (?)
3.5
NW
3.5
NW
4
NW
4
NW
4
WNW
4
WNW
4.5
WNW
4
WNW
4
WNW
4
WNW
5
NW
6
NW
6.5
NW
6.5
NW
6
NW
6
NW
5.5
WNW
5
WNW
5
WNW
5.5
WNW
6
WNW
6.5
NW
6.5
WNW
7
WNW
Period(s) (?)151515151414141413131314151616161616151414141515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4873596263896987666866756661600953735620783713490185741992218938164711367612850115701049912421155341908822610
Wind
(km/h)
25
W
25
WSW
25
WSW
25
SW
40
SSW
30
SW
35
SW
30
WSW
35
WNW
40
WNW
40
WNW
40
NW
30
NW
30
WNW
20
W
30
SW
45
SW
50
SW
45
NW
40
WNW
35
WNW
45
W
45
W
55
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onononon
High Tide
/ height (m)
3:48PM
2.65
4:02AM
2.95
4:22PM
2.65
4:36AM
2.94
4:58PM
2.63
5:12AM
2.88
Low Tide
/ height (m)
9:46PM
0.29
10:16AM
0.22
10:20PM
0.29
10:51AM
0.23
10:56PM
0.33
11:28AM
0.28
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise------7:52-------7:50-------7:50-
Sunset5:44-------5:45-------5:45-------
light rain
clear
part cloud
cloud
light rain
mod rain
light rain
rain showers
part cloud
cloud
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
rain showers
cloud
light rain
light rain
light rain
light rain
Rain (mm)
1---5721-------1254-1124
Temp. °C141414141314151515141313131313131314141212121210
Feels °C (?)991096101010875567875653422-2
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backdoor 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.

View detailed surf forecast for Backdoor at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest