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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 6 pm Friday 08 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
16.6° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 2AM is: 1.5m 8s primary swell from a Southwest direction and 0.4m 13s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 08). An open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 6ft (1.9m) | 8s |
| Afternoon (09 May) | 10ft (3.0m) | 9s |
| Evening (09 May) | 10ft (3.0m) | 10s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 32mm), heaviest during Fri night. Very mild (max 17°C on Fri afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the SSE on Fri night, light winds from the SSW by Sun night). | ||||||||||||||||||||||||
Fri 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 8 | WNW 13 | WNW 13 | SW 8 | WNW 12 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | SW 9 | WSW 8 | NNW 12 | NNW 11 | NNW 11 | |
41 | 70 | 101 | 262 | 89 | 477 | 429 | 675 | 1312 | 1555 | 1559 | 1672 | 1855 | 1642 | 1616 | 1501 | 2085 | 1726 | 1067 | 945 | 682 | 550 | 591 | 591 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | |
High Tide | 8:01PM2.21m | 8:41AM1.95m | 9:09PM2.17m | 9:57AM1.97m | 10:19PM2.23m | 11:06AM2.09m | ||||||||||||||||||
Low Tide | 1:30PM0.97m | 2:27AM0.96m | 2:36PM1.03m | 3:40AM0.94m | 3:52PM1.02m | 4:49AM0.83m | ||||||||||||||||||
 |  |  |  | |  |  | | | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:28 | — | — | — |
 | — | 8:36 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | 8:38 |
— | 1 | 2 | 1 | 1 | 11 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | |
Temp °C | 17 | 16 | 14 | 14 | 15 | 14 | 15 | 16 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 17 |
11 | 9 | 7 | 7 | 10 | 8 | 10 | 9 | 10 | 9 | 9 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 12 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | SW 6 | SW 8 | WNW 12 | SW 8 | WNW 12 | NNW 13 | NNW 13 | NNW 12 | WSW 10 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | WSW 10 | NNW 12 | NNW 12 | WSW 9 | SW 9 | WSW 8 | SW 8 | NNW 11 | NNW 11 |
 kJ | 39 | 32 | 62 | 262 | 89 | 477 | 115 | 181 | 235 | 217 | 1559 | 250 | 237 | 183 | 176 | 1501 | 119 | 226 | 1067 | 945 | 682 | 485 | 591 | 591 |
Swell 2 Height (m) Direction Period (s) | WNW 14 | WNW 13 | WNW 13 | WNW 13 | NNW 14 | WNW 12 | NNW 13 | WNW 12 | WNW 12 | WNW 11 | NNW 12 | — | — | — | S 16 | NNW 11 | NNW 10 | — | NNW 12 | NNW 12 | NNW 12 | NNW 12 | SW 18 | WNW 9 |
| kJ | 41 | 70 | 101 | 68 | 41 | 117 | 120 | 111 | 119 | 143 | 278 | — | — | — | 5 | 183 | 85 | — | 269 | 392 | 461 | 550 | 13 | 16 |
Swell 3 Height (m) Direction Period (s) | N 11 | N 11 | NNW 7 | NW 7 | NNW 7 | NNW 14 | N 10 | NW 7 | — | — | WNW 11 | — | — | — | — | S 15 | — | — | S 19 | SW 19 | SW 19 | WNW 10 | — | SW 18 |
| kJ | 10 | 9 | 21 | 14 | 11 | 71 | 8 | 2 | — | — | 48 | — | — | — | — | 5 | — | — | 7 | 15 | 15 | 19 | — | 12 |
Wind waves Height (m) Direction Period (s) | S 4 | S 5 | S 5 | S 6 | SW 8 | — | SW 8 | SW 8 | SW 9 | SW 9 | — | WSW 10 | WSW 10 | WSW 10 | WSW 9 | S 7 | WSW 10 | WSW 9 | S 7 | — | — | — | SW 8 | SW 8 |
| kJ | 20 | 45 | 62 | 213 | 558 | — | 429 | 675 | 1312 | 1555 | — | 1672 | 1855 | 1642 | 1616 | 215 | 2085 | 1726 | 181 | — | — | — | 398 | 297 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 49 | 49 | 190 | 137 | 252 | 51 | 49 | 423 | 423 | 419 | 476 | 413 | 423 | 423 | 423 | 490 | 423 | 423 | 137 | 137 | 49 | 49 | 49 | 423 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
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