Surf Forecasts:
Bicas surf forecast from 4 Oct 2026:
- Best quality surf: Monday 5 Oct, 4AM (local time) - 2.5ft (0.8m), 11s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 8 Oct, 1PM (local time) - 4.5ft (1.4m), 10s period, NW swell with 361 kJ wave energy.
- Next surfable swell (1★+): Sunday 4 Oct, 10PM (local time) - 2.5ft (0.8m), 9s period with NW swell.
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 Sunday (Oct 04) at 10PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bicas in the next 16 days are 1.4m 10s and forecast to arrive on Thursday (Oct 08) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 6s period and expected on Tuesday (Oct 06) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 4th Oct) | 2.5ft (0.8m) 9s |
| Best Surf | 4AM (Mon 5th Oct) | 2.5ft (0.8m) 11s |
| Most Powerful | 1PM (Thu 8th Oct) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Bicas over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Warm (max 25°C on Sun afternoon, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 4 | Monday 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | Saturday 10 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 8 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 167 | 160 | 101 | 122 | 120 | 64 | 48 | 33 | 54 | 51 | 35 | 51 | 257 | 327 | 303 | 250 | 216 | 154 | 108 | 99 | 88 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-off | cross-off | cross | glassy | cross-off | cross | on | cross-on | on | cross-on | cross | on | cross | cross-off | cross-on | cross | cross | on | cross-on |
High Tide | 10:34PM2.54m | 11:00AM2.80m | 11:56PM2.69m | 12:13PM2.99m | 00:55AM2.89m | 1:08PM3.19m | 1:41AM3.07m | 1:54PM3.35m | 2:20AM3.21m | 2:34PM3.44m | 2:56AM3.30m | 3:10PM3.45m | 3:29AM3.34m | ||||||||
Low Tide | 4:09PM1.26m | 4:40AM1.43m | 5:40PM1.12m | 6:00AM1.26m | 6:44PM0.92m | 6:58AM1.04m | 7:32PM0.75m | 7:43AM0.85m | 8:12PM0.62m | 8:23AM0.70m | 8:48PM0.57m | 8:59AM0.62m | 9:21PM0.57m | ||||||||
 |  |  |  | |  |  | |  | | | | | | | | | | | | | |
 | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — |
 | — | 7:15 | — | — | 7:14 | — | — | 7:12 | — | — | 7:10 | — | — | 7:08 | — | — | 7:07 | — | — | 7:06 | — |
mm | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 25 | 23 | 21 | 21 | 20 | 20 | 20 | 19 | 21 | 19 | 19 | 23 | 24 | 25 | 27 | 26 | 26 | 26 | 26 | 22 |
Feels °C | 25 | 24 | 23 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 16 | 18 | 21 | 20 | 23 | 25 | 22 | 23 | 23 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 7 | NW 9 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 |
| kJ | 167 | 160 | 101 | 122 | 120 | 64 | 48 | 33 | 54 | 51 | 35 | 35 | 257 | 327 | 303 | 250 | 216 | 154 | 108 | 99 | 88 |
Swell 2 Height (m) Direction Period (s) | SW 12 | S 12 | S 12 | S 12 | S 12 | W 9 | WSW 4 | WNW 12 | W 7 | W 5 | — | NW 8 | S 12 | S 12 | S 12 | S 11 | S 11 | S 12 | S 10 | S 10 | S 11 |
| kJ | 6 | 3 | 3 | 3 | 3 | 2 | 3 | 14 | 4 | 4 | — | 51 | 3 | 3 | 3 | 2 | 2 | 3 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | S 12 | — | S 12 | — | — | S 11 | NW 13 | S 5 | — | W 7 | S 13 | S 12 | — | — | — | S 11 | S 11 | — | — | — | S 6 |
| kJ | 3 | — | 3 | — | — | 2 | 7 | 1 | — | 1 | 3 | 3 | — | — | — | 2 | 2 | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SW 3 | SSE 6 | SW 4 | W 3 | — | WNW 7 | — | — | — | — | ENE 3 | — | — | NNE 2 | — | NW 4 |
| kJ | — | — | — | — | — | 2 | 7 | 2 | 1 | — | 26 | — | — | — | — | 1 | — | — | 1 | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 36 | 0 | 0 | 39 | 0 | 0 | 81 | 5 | 27 | 478 | 5 | 1 | 20 | 1 | 14 | 28 | 1 | 5 | 31 | 20 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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