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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 12 pm Tuesday 28 Apr 2026 WESTForecast 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
16.0° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 5PM is: 0.9m 13s primary swell from a West-northwest direction and 1.2m 7s secondary swell from a North-northwest direction (forecast issued at 12:00pm April 28). The wind direction is predicted to be onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 4.5ft (1.3m) | 8s |
| Afternoon (28 Apr) | 3ft (0.9m) | 14s |
| Evening (28 Apr) | 3.5ft (1.0m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Very mild (max 18°C on Tue morning, min 14°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Fri 1 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNW 8 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | W 11 | WNW 11 | NW 18 | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | |
191 | 220 | 312 | 303 | 345 | 379 | 393 | 400 | 475 | 439 | 367 | 355 | 288 | 251 | 247 | 198 | 447 | 640 | 746 | 897 | 1014 | 949 | 924 | 911 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | |
High Tide | 1:45PM2.55m | 1:57AM2.73m | 2:21PM2.67m | 2:34AM2.76m | 2:55PM2.76m | 3:09AM2.77m | ||||||||||||||||||
Low Tide | 7:35AM0.39m | 7:48PM0.49m | 8:11AM0.32m | 8:25PM0.39m | 8:44AM0.29m | 8:59PM0.32m | ||||||||||||||||||
 |  |  | |  | | | | | | | |  | | | | | | | |  | | | | |
 | 6:43 | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:39 | — |
 | — | — | — | 8:25 | — | — | — | — | — | — | — | 8:27 | — | — | — | — | — | — | — | 8:28 | — | — | — | 8:29 |
— | — | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 18 | 17 | 15 | 16 | 15 | 15 | 14 | 15 | 16 | 17 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 18 | 17 | 16 | 16 | 16 | 15 |
15 | 18 | 16 | 12 | 16 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 13 | 14 | 13 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | W 11 | WNW 11 | WNW 11 | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 |
 kJ | 191 | 186 | 157 | 153 | 120 | 379 | 393 | 400 | 475 | 439 | 367 | 355 | 288 | 251 | 247 | 198 | 198 | 640 | 746 | 897 | 1014 | 949 | 924 | 911 |
Swell 2 Height (m) Direction Period (s) | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | NNW 7 | NNW 7 | N 7 | N 8 | N 8 | N 8 | N 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NW 18 | WNW 11 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 |
| kJ | 167 | 220 | 312 | 303 | 345 | 96 | 78 | 48 | 61 | 64 | 63 | 94 | 99 | 94 | 90 | 87 | 447 | 194 | 212 | 135 | 135 | 135 | 143 | 198 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 9 | W 9 | W 9 | W 9 | WNW 9 | WNW 8 | W 8 | WNW 5 | — | — | — | NW 18 | WSW 5 | WSW 5 | WSW 5 | NNW 8 | N 8 | N 8 | N 8 | WSW 5 | WSW 5 | SW 4 | SW 4 |
| kJ | 67 | 60 | 41 | 41 | 40 | 25 | 13 | 11 | 28 | — | — | — | 12 | 25 | 19 | 19 | 85 | 60 | 42 | 41 | 9 | 8 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 6 | — | W 5 | WSW 5 | WSW 5 | WSW 5 | — | — | — | — | WSW 5 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 24 | — | 34 | 33 | 36 | 36 | — | — | — | — | 15 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 25 | 29 | 81 | 25 | 25 | 29 | 29 | 49 | 49 | 49 | 49 | 49 | 1 | 1 | 0 | 1 | 12 | 1 | 49 | 49 | 29 | 28 | 0 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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