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Surf Forecasts:
Bicas surfForecast / Lisboa / Portugal
16 Day Weather and Surf, issued 6 pm 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)Best Forecast Surf Conditions for Bicas this week:
The surf forecast for Bicas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 19) at 10AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.2m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bicas in the next 16 days are 2.1m 14s and forecast to arrive on Wednesday (May 20) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 19th May) | 3ft (0.9m) 10s |
| Best Surf | 1PM (Wed 20th May) | 6.5ft (2.0m) 13s |
| Most Powerful | 7AM (Wed 20th May) | 7ft (2.1m) 14s |
Table - best surf conditions forecast for Bicas over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 14°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Thu afternoon, min 17°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
NW 12 | NW 11 | WNW 10 | WNW 10 | WNW 15 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 11 | WNW 11 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | |
367 | 278 | 182 | 171 | 574 | 1515 | 1188 | 703 | 392 | 340 | 302 | 370 | 407 | 415 | 255 | 212 | 173 | 183 | 168 | 106 | 71 | |
Wind (km/h) | |||||||||||||||||||||
on | on | glassy | on | cross-on | cross | on | glassy | glassy | on | cross-off | glassy | on | on | on | on | on | cross-on | cross-on | on | glassy | |
High Tide | 4:30PM3.54m | 5:00AM3.29m | 5:19PM3.46m | 5:53AM3.12m | 6:12PM3.33m | 6:52AM2.95m | 7:11PM3.17m | 7:57AM2.79m | 8:17PM3.04m | 9:09AM2.69m | 9:29PM2.95m | 10:22AM2.68m | 10:41PM2.92m | 11:27AM2.74m | |||||||
Low Tide | 10:45PM0.56m | 11:00AM0.77m | 11:37PM0.67m | 11:51AM0.93m | 00:35AM0.82m | 12:47PM1.11m | 1:40AM0.98m | 1:53PM1.26m | 2:53AM1.10m | 3:08PM1.35m | 4:08AM1.15m | 4:25PM1.36m | 5:16AM1.14m | ||||||||
 |  | | | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 |
 | 8:43 | — | — | 8:44 | — | — | 8:45 | — | — | 8:45 | — | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — | 8:49 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 14 | 16 | 19 | 18 | 25 | 25 | 24 | 25 | 30 | 29 | 24 | 28 | 25 | 26 | 27 | 21 | 18 | 18 | 15 | 21 |
10 | 11 | 17 | 15 | 16 | 25 | 22 | 22 | 23 | 27 | 28 | 23 | 24 | 22 | 22 | 22 | 18 | 18 | 15 | 14 | 19 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | WNW 10 | WNW 10 | NW 10 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | WNW 11 | WNW 11 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 |
 kJ | 367 | 278 | 182 | 171 | 275 | 1515 | 1188 | 703 | 392 | 340 | 302 | 370 | 407 | 415 | 255 | 212 | 173 | 183 | 168 | 106 | 71 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | SSW 16 | WNW 15 | WNW 15 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 13 | WNW 14 | SSW 14 | S 5 | S 5 | NW 5 | SSW 13 | SSW 13 | NNW 8 | NNW 8 | NNW 8 | NNW 7 |
| kJ | 11 | 10 | 25 | 21 | 574 | 21 | 21 | 20 | 7 | 17 | 36 | 19 | 2 | 2 | 14 | 17 | 17 | 32 | 25 | 11 | 5 |
Swell 3 Height (m) Direction Period (s) | — | W 16 | W 15 | SSW 16 | SSW 15 | — | — | — | W 15 | S 16 | S 13 | S 10 | SSW 14 | SSW 14 | SSW 13 | — | — | SW 13 | SW 13 | SW 12 | SW 12 |
| kJ | — | 5 | 4 | 24 | 22 | — | — | — | 4 | 5 | 14 | 2 | 21 | 20 | 17 | — | — | 7 | 7 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | WNW 4 | — | — | WNW 3 | — | — | — | — | — | — | — | — | NW 3 | NNW 4 | NW 6 | NW 6 | NW 6 | — | — | — | — |
| kJ | 7 | — | — | 3 | — | — | — | — | — | — | — | — | 3 | 7 | 31 | 50 | 49 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 541 | 27 | 0 | 27 | 14 | 1 | 27 | 0 | 0 | 27 | 0 | 0 | 27 | 20 | 20 | 27 | 20 | 7 | 103 | 12 | 0 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Bicas 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.
Information about the Bicas Surf forecast
The above surf forecast table for Bicas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bicas can be found by selecting the local surf guide option on the grey menu. Our Bicas surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Bicas) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Bicas may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Bicas is 9 km (6 miles) from Sesimbra. If you plan a holiday in Lisboa, look for hotels and other accommodation in Sesimbra. Sesimbra has rooms for a wide range of budgets as well as car hire and transport links.
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