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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 11 am Saturday 21 Mar 2026 WETForecast 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
14.2° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 4PM is: 0.9m 12s primary swell from a Northwest direction and 0.8m 9s secondary swell from a Southwest direction (forecast issued at 11:00am March 21). An open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (WET) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 3.5ft (1.1m) | 12s |
| Afternoon (21 Mar) | 3ft (0.9m) | 12s |
| Evening (21 Mar) | 3.5ft (1.0m) | 11s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 12 | 12 | 11 | 11 | 11 | 16 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 314 | 179 | 216 | 149 | 237 | 233 | 228 | 416 | 550 | 836 | 874 | 503 | 725 | 899 | 886 | 701 | 680 | 591 | 471 | 463 | 531 | 567 | 367 | 361 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | off | off | cross- off | off | off | off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross | cross- off | off | off |
High Tide / height (m) | 4:10PM 3.01 | 4:29AM 3.02 | 4:50PM 2.91 | 5:13AM 2.81 | 5:35PM 2.74 | |||||||||||||||||||
Low Tide / height (m) | 9:58AM -0.04 | 10:15PM 0.04 | 10:37AM 0.10 | 10:58PM 0.17 | 11:19AM 0.32 | 11:47PM 0.37 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:52 | - | - | - | - |
 |  | | |  | | | |  | | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 15 | 16 | 16 | 14 | 13 | 12 | 12 | 13 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 14 |
| Feels °C (?) | 8 | 12 | 14 | 14 | 11 | 10 | 9 | 9 | 10 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 13 | 14 | 12 | 13 | 14 | 10 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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