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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 6 pm Thursday 07 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
16.8° C
(Which is slightly warmer than usual)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 3AM is: 0.8m 8s primary swell from a North-northwest direction and 0.2m 16s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 07). The wind direction is predicted to be cross-offshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 2.5ft (0.7m) | 8s |
| Afternoon (08 May) | 2ft (0.6m) | 8s |
| Evening (08 May) | 1.5ft (0.5m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 29mm), heaviest during Fri night. Very mild (max 17°C on Fri afternoon, min 13°C on Thu night). Winds increasing (calm on Thu night, strong winds from the S by Fri night). | ||||||||||||||||||||||||
Thu 7 | Friday 8 | Saturday 9 | Sun 10 | |||||||||||||||||||||
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 | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
NNW 6 | NNW 7 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | SSW 5 | WNW 13 | WNW 13 | WNW 12 | SW 8 | NNW 14 | SW 8 | SW 9 | SW 9 | SW 10 | WSW 10 | SW 9 | SW 9 | WSW 9 | WSW 8 | |
55 | 62 | 124 | 119 | 88 | 84 | 55 | 52 | 41 | 72 | 101 | 99 | 89 | 316 | 121 | 921 | 971 | 1251 | 1375 | 1374 | 754 | 585 | 839 | 741 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | glassy | cross-off | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:04PM2.30m | 7:35AM2.02m | 8:01PM2.21m | 8:41AM1.95m | 9:09PM2.17m | 9:57AM1.97m | ||||||||||||||||||
Low Tide | 1:24AM0.88m | 1:30PM0.97m | 2:27AM0.96m | 2:36PM1.03m | 3:40AM0.94m | |||||||||||||||||||
 |  |  | | |  |  | | | |  |  |  |  |  | | | |  | | | |  | | |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — |
 | — | 8:35 | — | — | — | — | — | — | — | 8:36 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | 8:37 |
— | — | — | — | — | 1 | — | — | — | — | 4 | 6 | 1 | 6 | 3 | — | 1 | 1 | 1 | 1 | 1 | — | 2 | 1 | |
Temp °C | 15 | 15 | 14 | 14 | 14 | 13 | 15 | 16 | 17 | 16 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 15 | 15 | 16 |
11 | 11 | 12 | 13 | 12 | 10 | 10 | 10 | 11 | 9 | 7 | 9 | 9 | 8 | 10 | 10 | 9 | 9 | 10 | 10 | 9 | 11 | 8 | 10 | |
Swell 1 Height (m) Direction Period (s) | NNW 6 | NNW 7 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | WNW 13 | WNW 13 | WNW 12 | SW 8 | WNW 12 | NNW 13 | NNW 13 | NNW 12 | SW 10 | WSW 10 | SW 9 | SW 9 | NNW 11 | NNW 11 |
 kJ | 55 | 62 | 124 | 119 | 88 | 84 | 55 | 52 | 39 | 22 | 101 | 99 | 89 | 316 | 115 | 181 | 235 | 217 | 1375 | 1374 | 754 | 585 | 176 | 183 |
Swell 2 Height (m) Direction Period (s) | NNW 9 | NW 9 | W 8 | W 16 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 13 | NNW 7 | NW 7 | NNW 7 | WNW 12 | NNW 14 | WNW 12 | WNW 12 | WNW 11 | NNW 12 | NNW 12 | WNW 9 | WNW 10 | — | S 16 |
| kJ | 35 | 41 | 1 | 5 | 25 | 25 | 42 | 42 | 41 | 70 | 21 | 14 | 10 | 117 | 121 | 125 | 142 | 148 | 210 | 203 | 302 | 407 | — | 5 |
Swell 3 Height (m) Direction Period (s) | NW 7 | W 8 | SW 14 | W 8 | W 8 | N 12 | N 12 | N 12 | N 11 | N 11 | N 11 | NNW 14 | NNW 14 | NNW 14 | NNW 10 | NNW 10 | WSW 10 | — | WNW 11 | — | NNW 12 | NNW 11 | — | — |
| kJ | 14 | 1 | 8 | 1 | 1 | 3 | 3 | 3 | 10 | 9 | 9 | 21 | 41 | 71 | 19 | 9 | 20 | — | 79 | — | 193 | 183 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSW 3 | S 4 | S 4 | SSW 5 | SSW 6 | SW 8 | SW 8 | S 7 | SSW 8 | SW 8 | SW 9 | SW 9 | — | — | — | — | WSW 9 | WSW 8 |
| kJ | — | — | — | — | — | — | 1 | 12 | 22 | 72 | 225 | 516 | 544 | 173 | 993 | 921 | 971 | 1251 | — | — | — | — | 839 | 741 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 516 | 549 | 146 | 0 | 0 | 1 | 51 | 49 | 51 | 51 | 81 | 238 | 412 | 238 | 413 | 419 | 413 | 413 | 476 | 51 | 49 | 49 | 490 | 490 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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