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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 12 pm Saturday 25 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
15.8° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 4PM is: 1.1m 9s primary swell from a West direction and 0.7m 4s secondary swell from a North-northwest direction (forecast issued at 12:00pm April 25). An open ocean swell of 0.1m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 4.5ft (1.3m) | 9s |
| Afternoon (25 Apr) | 3.5ft (1.1m) | 9s |
| Evening (25 Apr) | 3.5ft (1.0m) | 9s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 14°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | NNW 6 | NNW 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | |
282 | 235 | 194 | 157 | 150 | 113 | 111 | 86 | 84 | 87 | 87 | 87 | 96 | 103 | 121 | 128 | 167 | 172 | 167 | 172 | 147 | 151 | 196 | 284 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross | cross | cross | |
High Tide | 11:01AM2.14m | 11:22PM2.45m | 12:10PM2.26m | 00:25AM2.55m | 1:03PM2.41m | 1:15AM2.65m | ||||||||||||||||||
Low Tide | 5:02PM0.89m | 5:58AM0.62m | 6:12PM0.76m | 6:53AM0.50m | 7:05PM0.62m | |||||||||||||||||||
 | | | |  | | |  | | | | |  | | | |  | | | | | |  | | |
 | 6:48 | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — |
 | — | — | — | 8:22 | — | — | — | — | — | — | — | 8:23 | — | — | — | — | — | — | — | 8:24 | — | — | — | 8:25 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 16 | 18 | 17 | 17 | 16 | 15 | 15 | 15 | 18 | 20 | 18 | 17 | 16 | 15 | 15 | 14 |
12 | 13 | 11 | 10 | 10 | 11 | 11 | 12 | 14 | 16 | 14 | 14 | 13 | 12 | 12 | 13 | 16 | 18 | 16 | 15 | 14 | 13 | 14 | 12 | |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | NNW 6 | NNW 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
 kJ | 282 | 235 | 194 | 157 | 150 | 113 | 111 | 86 | 79 | 85 | 87 | 87 | 96 | 103 | 88 | 128 | 167 | 172 | 167 | 172 | 147 | 151 | 196 | 284 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | — | — | W 8 | WNW 8 | — | — | — | W 13 | W 13 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | W 11 | W 11 | W 10 | W 10 | W 10 |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | — | — | 84 | 87 | — | — | — | 3 | 3 | 84 | 55 | 26 | 26 | 62 | 57 | 52 | 73 | 71 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | W 8 | W 8 | WNW 11 | WNW 8 | NW 8 | W 8 | WNW 16 | WNW 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 12 | 19 | 41 | 25 | 15 | 20 | 85 | 126 |
Wind waves Height (m) Direction Period (s) | N 4 | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | — | — | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 12 | 18 | 47 | 56 | 48 | 62 | 67 | — | — | 71 | 80 | 85 | 93 | 121 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 25 | 377 | 213 | 25 | 25 | 25 | 25 | 25 | 26 | 213 | 25 | 25 | 25 | 25 | 21 | 0 | 26 | 26 | 25 | 25 | 26 | 25 | 25 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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