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Surf Forecasts:
Backdoor surfForecast / Ericeira / Portugal
48hr Weather and Surf, issued 12 pm Tuesday 21 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
15.6° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 5PM is: 1.3m 14s primary swell from a Northwest direction and 0.4m 8s secondary swell from a North-northwest direction, 1.0m 6s secondary swell from a South-southwest direction (forecast issued at 12:00pm April 21). The wind direction is predicted to be onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 1.5ft (0.5m) | 15s |
| Afternoon (21 Apr) | 3.5ft (1.0m) | 14s |
| Evening (21 Apr) | 6ft (1.8m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 14 | 13 | 13 | 13 | 10 | 10 | 10 | 12 | 11 | 11 | 11 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 115 | 255 | 485 | 780 | 1162 | 1744 | 1783 | 1739 | 1472 | 1047 | 1559 | 1216 | 663 | 473 | 405 | 492 | 578 | 1076 | 1179 | 1011 | 898 | 751 | 751 | 751 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross- on | cross- on | on | cross- on | cross | glass | glass | cross | cross- on | cross- on | cross- on | cross | cross- on | cross | cross- on |
High Tide / height (m) | 6:25PM 2.80 | 7:01AM 2.48 | 7:25PM 2.61 | 8:11AM 2.25 | 8:38PM 2.45 | |||||||||||||||||||
Low Tide / height (m) | 12:06PM 0.37 | 12:44AM 0.35 | 1:01PM 0.61 | 1:50AM 0.56 | 2:08PM 0.81 | 3:14AM 0.70 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:48 |
| Sunset | - | - | - | 8:20 | - | - | - | - | - | - | - | 8:21 | - | - | - | - | - | - | - | 8:21 | - | - | - | - |
 |  |  | |  |  | | | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 18 | 17 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 14 |
| Feels °C (?) | 13 | 15 | 14 | 9 | 10 | 11 | 11 | 11 | 12 | 12 | 11 | 12 | 12 | 11 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 |
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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
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backdoor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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