Surf Forecasts:
Bicas surf forecast from 30 Jul 2026:
- Most powerful swell: Sunday 2 Aug, 4PM (local time) - 3.5ft (1.1m), 8s period, NW swell with 154 kJ wave energy.
Best Forecast Surf Conditions for Bicas this week:
The most powerful waves expected at Bicas in the next 16 days are 1.1m 8s and forecast to arrive on Sunday (Aug 02) at 4PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sun 2nd Aug) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for Bicas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight up with ya – it’s looking pretty bleak out there for the next 16 days. We've got a rare, expert-only reef break called Bicas on the radar, but honestly, the conditions are just not playing ball. The water temp is sitting around 67°F, which is about average for this time of year, so at least that's one thing that's not working against us.
The first real sniff of anything remotely surfable doesn't show up until Wednesday, August 7th. Through the afternoon, a cross-onshore breeze wraps around, pushing into a 4ft swell from the W with a period of 9 seconds. The wave energy is moderate at best (211), but that wind is going to have it pretty chopped up and messy. It’s a far cry from clean.
The only day that even gets a nod from me is the morning of Saturday, August 10th. A chest-high 5ft swell from the WNW with a period of 10 seconds starts to build, producing the most energy we'll see in this whole stretch (a moderate 394). The wind is light from the WNW, so it’s cross-onshore but small, which could keep the surface from being total junk. It's just a "marginal" window, but if you're an advanced surfer and absolutely jonesing, that's your one and only shot. Still, wind is not ideal, so don't expect perfection. That's it. The rest of the period is dominated by poor surf conditions and choppy, onshore winds that will ruin even the tiny 1ft to 4ft swells we see.
For a break that rarely breaks and is already an expert's game, this is a total write-off. You’d probably have a better time on a kite with the strong onshores we see later in the window than trying to paddle out at this reef.
Stay patient, the forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 17°C on Wed night). Winds decreasing (fresh winds from the NNW on Thu afternoon, light winds from the NNE by Fri night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 19°C on Sat night). Winds decreasing (fresh winds from the NW on Sat afternoon, light winds from the NNW by Sun night). | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 9 | NW 10 | WNW 10 | NW 9 | NW 9 | NW 9 | NW 4 | W 9 | W 9 | W 9 | W 9 | W 8 | NW 8 | W 10 | W 9 | W 9 | WNW 8 | W 7 | WNW 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 28 | 46 | 37 | 128 | 20 | 19 | 39 | 64 | 78 | 43 | 56 | 52 | 154 | 47 | 42 | 42 | 62 | 45 | 87 | 83 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | on | on | cross-on | on |
High Tide | 3:54AM3.01m | 4:07PM3.28m | 4:26AM3.06m | 4:39PM3.32m | 4:58AM3.08m | 5:12PM3.32m | 5:32AM3.07m | 5:46PM3.28m | 6:07AM3.03m | 6:24PM3.19m | 6:48AM2.96m | 7:06PM3.07m | ||||||||
Low Tide | 9:48PM0.87m | 9:51AM0.91m | 10:19PM0.82m | 10:22AM0.86m | 10:50PM0.79m | 10:54AM0.84m | 11:23PM0.79m | 11:28AM0.86m | 11:57PM0.83m | 12:04PM0.91m | 00:35AM0.90m | 12:46PM1.00m | 1:19AM1.01m | |||||||
 |  |  | | | | | | | | | | |  | | | | | | | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — |
 | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 18 | 21 | 22 | 19 | 24 | 26 | 23 | 26 | 27 | 21 | 23 | 24 | 21 | 22 | 22 | 21 | 21 | 21 | 20 |
Feels °C | 19 | 15 | 18 | 17 | 16 | 21 | 21 | 20 | 23 | 22 | 18 | 20 | 20 | 19 | 22 | 22 | 22 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 10 | WNW 10 | — | NW 9 | NW 9 | W 12 | W 9 | W 9 | W 9 | W 9 | W 8 | — | W 10 | W 9 | W 9 | WNW 8 | W 7 | WNW 8 | WNW 8 |
| kJ | 28 | 46 | 37 | — | 20 | 19 | 11 | 64 | 78 | 43 | 56 | 52 | — | 47 | 42 | 42 | 62 | 45 | 87 | 83 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | NNW 8 | NNW 8 | — | — | W 12 | — | N 11 | NW 6 | W 8 | NNW 8 | N 8 | — | NW 6 | S 15 | N 7 | WNW 9 | WNW 9 | S 13 | SW 12 |
| kJ | 22 | 14 | 6 | — | — | 3 | — | 2 | 16 | 21 | 6 | 5 | — | 1 | 4 | 1 | 17 | 25 | 3 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 12 | — | — | NW 10 | — | — | — | — | N 7 | NNW 7 | S 14 | S 13 | S 13 | N 8 | N 9 |
| kJ | — | — | — | — | — | 3 | — | — | 4 | — | — | — | — | 1 | 5 | 4 | 3 | 3 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | WNW 3 | NW 4 | NW 4 | NW 9 | NW 4 | NW 4 | NW 4 | NNW 6 | — | NW 4 | NW 4 | NW 6 | NW 8 | NW 4 | NW 7 | W 2 | — | — | W 2 | — |
| kJ | 7 | 10 | 2 | 128 | 17 | 10 | 39 | 46 | — | 27 | 18 | 19 | 154 | 5 | 8 | 1 | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 471 | 31 | 31 | 584 | 325 | 112 | 488 | 14 | 20 | 465 | 31 | 20 | 335 | 28 | 31 | 335 | 30 | 31 | 159 | 20 |
Best forecast wave conditions in Lisboa | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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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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