Surf Forecasts:
How big are the waves at Backdoor today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 4.5ft (1.3m), 12s period with NW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 5ft (1.6m), 12s period with NW swell.
- Evening surf: Evening surf (21 Oct, local time) - 10ft (3.0m), 12s period with NW swell.
The current surf forecast for Backdoor at 10AM is: 1.3m 12s primary swell from a Northwest direction and 1.0m 5s secondary swell from a North-northwest direction (forecast issued at 06:00am October 21). The wind direction is predicted to be cross-offshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 4.5ft (1.3m) | 12s |
| Afternoon (21 Oct) | 5ft (1.6m) | 12s |
| Evening (21 Oct) | 10ft (3.0m) | 12s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Thu night, min 13°C on Wed night). Winds increasing (light winds from the WNW on Thu night, fresh winds from the N by Fri night). | |||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 14 | NW 14 | NW 13 | NW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 649 | 558 | 440 | 409 | 944 | 2035 | 2388 | 2483 | 2348 | 2089 | 1903 | 1672 | 1147 | 1467 | 1876 | 1657 | 1607 | 1912 | 3318 | 5319 | 5483 | 4873 | 4374 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross | cross-off | cross | cross | cross | cross |
High Tide | 12:04PM2.29m | 00:39AM2.22m | 12:48PM2.48m | 1:17AM2.44m | 1:27PM2.68m | ||||||||||||||||||
Low Tide | 5:48AM0.98m | 6:28PM0.74m | 6:36AM0.78m | 7:06PM0.53m | 7:17AM0.57m | 7:42PM0.32m | |||||||||||||||||
 |  |  | | | | | | | | | | | | |  | | | | | | | | |
 | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:54 | — | — | — | — | — |
 | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 16 | 16 | 14 | 14 | 14 | 14 | 13 | 14 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 15 | 14 | 14 |
Feels °C | 14 | 15 | 12 | 10 | 10 | 8 | 9 | 9 | 10 | 9 | 12 | 12 | 12 | 13 | 13 | 14 | 15 | 14 | 12 | 11 | 8 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 14 | NW 14 | NW 13 | NW 13 |
| kJ | 649 | 558 | 440 | 409 | 944 | 2035 | 2388 | 2483 | 2348 | 2089 | 1903 | 1672 | 1147 | 1467 | 1876 | 1657 | 1607 | 1912 | 3318 | 5319 | 5483 | 4873 | 4374 |
Swell 2 Height (m) Direction Period (s) | NNW 5 | — | — | — | — | — | — | — | — | — | — | — | NW 14 | — | — | — | — | — | — | — | — | — | — |
| kJ | 26 | — | — | — | — | — | — | — | — | — | — | — | 648 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNW 5 | NNW 5 | NNW 6 | NNW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | — | — | — | — |
| kJ | — | 17 | 53 | 156 | 153 | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 25 | 25 | 25 | 29 | 213 | 29 | 25 | 25 | 25 | 25 | 10 | 28 | 549 | 28 | 25 | 25 | 49 | 25 | 26 | 26 | 215 | 240 | 230 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
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