
Surf Forecasts:
Bicas surf forecast from 25 Sep 2026:
- Best quality surf: Saturday 26 Sep, 10AM (local time) - 4.5ft (1.4m), 14s period, NW swell with glassy winds.
- Most powerful swell: Thursday 1 Oct, 10PM (local time) - 7.5ft (2.3m), 14s period, NW swell with 2,020 kJ wave energy.
- Next surfable swell (1★+): Saturday 26 Sep, 10AM (local time) - 4.5ft (1.4m), 14s 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 Saturday (Sep 26) at 10AM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bicas in the next 16 days are 2.3m 14s and forecast to arrive on Thursday (Oct 01) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Sep 30) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 26th Sep) | 4.5ft (1.4m) 14s |
| Best Surf | 10AM (Sat 26th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 10PM (Thu 1st Oct) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Bicas over the next 16 days.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 19°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue night. Warm (max 22°C on Tue morning, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | |||||||||||||||
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 11 | NW 17 | NW 14 | NW 14 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 | NW 12 | NW 11 | NW 11 | WSW 8 | WSW 9 | W 11 | WNW 13 | WNW 13 | NW 13 | NW 14 |
Wave Graph | |||||||||||||||||||||
119 | 232 | 536 | 691 | 680 | 409 | 349 | 303 | 268 | 194 | 264 | 298 | 217 | 176 | 300 | 474 | 743 | 1491 | 1575 | 1838 | 1688 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | glassy | on | cross-on | glassy | on | on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | cross-on |
High Tide | 2:36PM3.32m | 2:56AM3.23m | 3:09PM3.44m | 3:28AM3.34m | 3:42PM3.49m | 4:01AM3.39m | 4:18PM3.47m | 4:36AM3.37m | 4:56PM3.37m | 5:15AM3.30m | 5:37PM3.20m | 5:58AM3.16m | 6:26PM2.97m | ||||||||
Low Tide | 8:47PM0.67m | 8:56AM0.67m | 9:18PM0.57m | 9:29AM0.58m | 9:51PM0.52m | 10:04AM0.54m | 10:25PM0.55m | 10:41AM0.58m | 11:01PM0.65m | 11:21AM0.68m | 11:41PM0.82m | 12:08PM0.85m | 00:27AM1.03m | ||||||||
7:26 | — | — | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | |
— | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | 4 | 2 | — | — | — | — | — |
Temp °C | 26 | 28 | 23 | 25 | 27 | 24 | 23 | 23 | 21 | 20 | 21 | 20 | 22 | 22 | 21 | 20 | 21 | 20 | 20 | 21 | 17 |
Feels °C | 23 | 22 | 19 | 23 | 23 | 20 | 21 | 20 | 19 | 21 | 20 | 21 | 20 | 22 | 20 | 21 | 19 | 18 | 16 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | NW 14 | NW 14 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 | NW 12 | NW 11 | NW 11 | WSW 8 | WSW 9 | W 11 | WNW 13 | WNW 13 | NW 13 | NW 14 |
119 | 108 | 536 | 691 | 680 | 409 | 349 | 303 | 268 | 194 | 264 | 298 | 217 | 176 | 300 | 474 | 743 | 1491 | 1575 | 1838 | 1688 | |
Swell 2 Height (m) Direction Period (s) | NW 5 | NW 17 | NW 10 | S 13 | S 12 | S 12 | S 12 | S 12 | NW 17 | NW 14 | SW 13 | SSW 13 | WSW 6 | SSW 11 | NW 11 | NW 12 | SSW 9 | SSW 9 | SW 16 | SW 8 | SW 16 |
5 | 232 | 48 | 3 | 3 | 3 | 3 | 3 | 11 | 46 | 7 | 17 | 11 | 12 | 41 | 66 | 8 | 7 | 10 | 3 | 10 | |
Swell 3 Height (m) Direction Period (s) | WNW 20 | S 13 | SW 13 | — | — | S 12 | — | N 19 | S 11 | S 11 | S 11 | — | SSW 12 | — | SSW 10 | SSW 9 | S 18 | S 18 | SW 9 | SW 16 | SW 8 |
38 | 3 | 7 | — | — | 3 | — | 7 | 2 | 2 | 2 | — | 13 | — | 10 | 9 | 6 | 6 | 3 | 10 | 3 | |
Wind waves Height (m) Direction Period (s) | — | NNW 4 | NNW 5 | — | — | NW 5 | — | — | NNW 4 | — | SW 2 | S 4 | S 4 | SW 6 | S 4 | — | — | — | — | — | — |
— | 13 | 19 | — | — | 23 | — | — | 12 | — | 1 | 9 | 17 | 60 | 31 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 434 | 20 | 0 | 31 | 14 | 0 | 27 | 27 | 20 | 0 | 12 | 81 | 593 | 81 | 0 | 27 | 14 | 14 | 175 | 27 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.










