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Surf Forecasts:
Bicas surfForecast / Lisboa / Portugal
48hr Weather and Surf, issued 6 am Monday 18 May 2026 WESTForecast update in hr min s Forecast update imminent
Bicas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bicas sea temperature is
16.7° C
(Which is normal for this time of year)How big are the waves at Bicas today?
The current surf forecast for Bicas at 10AM is: 1.3m 13s primary swell from a Northwest direction and 0.1m 18s secondary swell from a Southwest direction (forecast issued at 06:00am May 18). The wind direction is predicted to be onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 3.5ft (1.1m) | 13s |
| Afternoon (18 May) | 3.5ft (1.1m) | 12s |
| Evening (18 May) | 3.5ft (1.1m) | 11s |
Table - waves today at Bicas. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 14°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NW 10 | WNW 15 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | |
215 | 249 | 535 | 471 | 367 | 349 | 373 | 278 | 224 | 189 | 182 | 175 | 204 | 164 | 408 | 574 | 1560 | 1653 | 1515 | 1384 | 1188 | 1044 | 813 | 703 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | on | on | glassy | glassy | cross-on | on | on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | on | glassy | |
High Tide | 4:10AM3.40m | 4:30PM3.54m | 5:00AM3.29m | 5:19PM3.46m | 5:53AM3.12m | 6:12PM3.33m | ||||||||||||||||||
Low Tide | 10:13AM0.65m | 10:45PM0.56m | 11:00AM0.77m | 11:37PM0.67m | 11:51AM0.93m | 00:35AM0.82m | ||||||||||||||||||
 |  | |  |  | |  |  | | | | | | | | | | | | | | | | | |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
 | — | — | — | — | — | 8:43 | — | — | — | — | — | — | — | 8:44 | — | — | — | — | — | — | — | 8:45 | — | 8:45 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 16 | 17 | 18 | 19 | 18 | 18 | 17 | 17 | 21 | 25 | 24 | 23 | 22 | 22 |
9 | 9 | 10 | 10 | 11 | 11 | 12 | 14 | 13 | 15 | 17 | 15 | 14 | 15 | 15 | 16 | 16 | 15 | 19 | 24 | 21 | 21 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 15 | WNW 10 | NW 10 | NW 10 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 13 | WNW 12 | WNW 12 |
 kJ | 215 | 249 | 535 | 471 | 367 | 349 | 373 | 278 | 224 | 189 | 182 | 175 | 21 | 164 | 275 | 269 | 1560 | 1653 | 1515 | 1384 | 1188 | 1044 | 813 | 703 |
Swell 2 Height (m) Direction Period (s) | NW 10 | S 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SSW 16 | SSW 16 | WNW 15 | SSW 16 | WNW 14 | WNW 16 | WNW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 35 | 6 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 25 | 25 | 21 | 24 | 38 | 103 | 574 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 |
Swell 3 Height (m) Direction Period (s) | S 18 | SW 18 | — | — | — | W 17 | — | W 16 | W 16 | W 16 | W 15 | SSW 16 | SSW 16 | SSW 15 | WNW 13 | SSW 15 | — | — | — | — | — | — | — | — |
| kJ | 6 | 12 | — | — | — | 6 | — | 5 | 5 | 5 | 4 | 24 | 24 | 23 | 35 | 22 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 9 | — | — | WNW 4 | WNW 4 | WNW 4 | — | — | — | — | — | WNW 10 | WNW 4 | NW 10 | — | — | — | — | — | — | — | — | — |
| kJ | 51 | 112 | — | — | 10 | 12 | 13 | — | — | — | — | — | 204 | 8 | 408 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 27 | 20 | 68 | 159 | 463 | 463 | 27 | 27 | 20 | 0 | 0 | 27 | 27 | 27 | 20 | 14 | 1 | 1 | 1 | 14 | 27 | 27 | 27 | 0 |
Best forecast wave conditions in Lisboa | ||||||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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