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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 6 am Monday 04 May 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
16.9° C
(Which is slightly warmer than usual)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 11AM is: 1.2m 8s primary swell from a Northwest direction and 0.4m 7s secondary swell from a West-southwest direction (forecast issued at 06:00am May 04). The wind direction is predicted to be cross-onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 May) | 4ft (1.2m) | 8s |
| Afternoon (04 May) | 4ft (1.2m) | 8s |
| Evening (04 May) | 4ft (1.2m) | 9s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 16°C on Wed morning, min 14°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 4 | Tuesday 5 | Wednesday 6 | Thu 7 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 9 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 9 | NW 9 | NW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | |
170 | 162 | 206 | 184 | 188 | 242 | 242 | 242 | 270 | 264 | 258 | 293 | 338 | 433 | 433 | 443 | 443 | 379 | 331 | 331 | 270 | 232 | 212 | 170 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | |
High Tide | 4:50AM2.57m | 5:03PM2.67m | 5:24AM2.44m | 5:39PM2.56m | 6:02AM2.29m | 6:18PM2.43m | ||||||||||||||||||
Low Tide | 10:48AM0.48m | 11:14PM0.47m | 11:21AM0.60m | 11:52PM0.60m | 11:58AM0.73m | 00:34AM0.75m | ||||||||||||||||||
 |  | | | | |  | | | | | | | | | | |  |  | | | | | | |
 | 6:37 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | 6:33 |
 | — | — | — | — | — | 8:31 | — | — | — | — | — | — | — | 8:32 | — | — | — | — | — | — | — | 8:34 | — | 8:35 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 15 | 14 | 14 |
11 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 8 | NW 8 | WSW 7 | WSW 6 | W 6 | NW 9 | W 6 | W 6 | NNW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 8 | NNW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 8 | NNW 11 |
 kJ | 170 | 162 | 206 | 9 | 8 | 3 | 242 | 3 | 1 | 264 | 7 | 14 | 13 | 13 | 13 | 12 | 12 | 379 | 331 | 6 | 6 | 6 | 212 | 11 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 10 | WSW 7 | S 12 | S 12 | S 12 | W 6 | SW 11 | W 9 | W 9 | — | — | — | — | — | — | S 17 | WSW 8 | WSW 8 | W 9 | W 9 | SW 16 | W 9 | W 9 |
| kJ | 68 | 69 | 15 | 3 | 3 | 3 | 3 | 5 | 2 | 6 | — | — | — | — | — | — | 6 | 11 | 11 | 2 | 2 | 10 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | WSW 7 | WSW 7 | S 12 | — | — | — | S 12 | S 12 | S 11 | W 6 | — | — | — | — | — | — | — | — | — | S 16 | SW 16 | NW 12 | SW 16 | S 15 |
| kJ | 15 | 15 | 3 | — | — | — | 3 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | 5 | 10 | 6 | 10 | 4 |
Wind waves Height (m) Direction Period (s) | NW 5 | — | — | NNW 8 | NNW 8 | NW 9 | — | NW 9 | NNW 9 | — | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | — | — | NNW 8 | NNW 8 | NNW 8 | — | NNW 8 |
| kJ | 19 | — | — | 184 | 188 | 242 | — | 242 | 270 | — | 258 | 293 | 338 | 433 | 433 | 443 | 443 | — | — | 331 | 270 | 232 | — | 170 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 29 | 29 | 407 | 549 | 493 | 493 | 312 | 26 | 27 | 26 | 124 | 412 | 614 | 503 | 407 | 28 | 28 | 28 | 271 | 516 | 516 | 549 | 455 | 37 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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