Surf Forecasts:
How big are the waves at Backdoor today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 5ft (1.5m), 8s period with NW swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 5ft (1.6m), 9s period with NW swell.
- Evening surf: Evening surf (15 Aug, local time) - 7.5ft (2.3m), 8s period with NNW swell.
The current surf forecast for Backdoor at 5PM is: 1.6m 8s primary swell from a North-northwest direction and 1.5m 9s secondary swell from a Northwest direction, 0.1m 18s secondary swell from a Southwest direction (forecast issued at 12:00pm August 15). The wind direction is predicted to be cross-onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 5ft (1.5m) | 8s |
| Afternoon (15 Aug) | 5ft (1.6m) | 9s |
| Evening (15 Aug) | 7.5ft (2.3m) | 8s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 26°C on Mon morning, min 20°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Mon night). | |||||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | |||||||||||||||||||
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 8 | NW 9 | NW 9 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 311 | 475 | 333 | 699 | 809 | 815 | 821 | 793 | 641 | 524 | 412 | 344 | 285 | 240 | 277 | 352 | 344 | 344 | 298 | 298 | 250 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross-off | cross-on | on | cross-on | glassy |
High Tide | 5:22PM3.14m | 5:45AM2.80m | 6:01PM2.95m | 6:23AM2.67m | 6:40PM2.71m | ||||||||||||||||
Low Tide | 11:05AM0.09m | 11:36PM0.05m | 11:44AM0.20m | 00:12AM0.24m | 12:23PM0.38m | ||||||||||||||||
 |  |  | |  |  |  | | | | | | | | | |  | | | | | |
 | 6:50 | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — |
 | — | — | — | 8:32 | — | — | — | — | — | — | — | 8:31 | — | — | — | — | — | — | — | 8:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 21 | 22 | 22 | 21 | 20 | 20 | 20 | 20 | 22 | 25 | 25 | 23 | 22 | 21 | 22 | 22 | 25 | 26 | 24 | 23 | 23 |
Feels °C | 19 | 21 | 21 | 18 | 17 | 19 | 21 | 22 | 23 | 26 | 24 | 21 | 21 | 21 | 23 | 23 | 25 | 26 | 23 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 9 | NW 9 | SW 18 | S 18 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 311 | 475 | 326 | 13 | 6 | 815 | 821 | 793 | 641 | 524 | 412 | 344 | 285 | 240 | 277 | 352 | 344 | 344 | 298 | 298 | 250 |
Swell 2 Height (m) Direction Period (s) | — | SW 18 | SW 18 | — | — | S 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 8 | W 8 | W 7 | W 9 | W 9 | W 8 | WNW 8 |
| kJ | — | 12 | 12 | — | — | 6 | 11 | 10 | 10 | 11 | 11 | 11 | 9 | 9 | 5 | 5 | 4 | 6 | 6 | 6 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SW 15 | SW 17 | SW 15 | SW 16 | SSW 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 9 | 9 | 12 | 9 | 11 | 26 |
Wind waves Height (m) Direction Period (s) | N 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 258 | 253 | 333 | 699 | 809 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 29 | 591 | 591 | 591 | 138 | 28 | 28 | 0 | 0 | 28 | 137 | 201 | 37 | 29 | 0 | 5 | 0 | 22 | 493 | 45 | 0 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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