Surf Forecasts:
Bicas surf forecast from 20 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 10PM (local time) - 5.5ft (1.7m), 8s period, NW swell with 318 kJ wave energy.
Best Forecast Surf Conditions for Bicas this week:
The most powerful waves expected at Bicas in the next 16 days are 1.7m 8s and forecast to arrive on Saturday (Jul 25) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Sat 25th Jul) | 5.5ft (1.7m) 8s |
Table - best surf conditions forecast for Bicas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Bicas.
To be straight with you, the next couple of weeks are looking pretty quiet. We’ve got a long stretch of small, onshore wind-affected surf that’s not worth paddling out for. The first decent chance I’m seeing doesn’t roll around until Tuesday, July 28th, so you’re looking at a solid week of flat or poor conditions before that.
That Tuesday morning is the one standout in the whole run. We’ll have a clean 4ft swell rolling in from the NW with a 9-second period, and the real kicker is the light SSE offshore breeze. The water is sitting at 70°F, which is about 2°F warmer than usual, so it’s a touch on the balmy side for this time of year. The combined energy reading is 185 (moderate), so there’s some push behind it. Just keep in mind, Bicas is a reef break that rarely breaks, so it’s a spot for the advanced crew only, and it can get crowded sometimes. The swell direction is from the NW, but the optimum is from the W, so it’s not a perfect match, but with that glassy morning wind, it’s the best you’re going to get.
After that morning, the wind swings onshore again and the swell drops away fast. The rest of the forecast is a mix of tiny junk and onshore slop, with a few pulses of energy around the 4ft to 4ft mark on Monday, August 3rd and Tuesday, August 4th, but the wind is straight onshore from the NW, and the energy (308 and 304) is strong, but it’s all blown out. That’s more of a kitesurfing setup than a paddle session.
So, your best bet is to circle that Tuesday, July 28th morning. Get there early, hope for a set or two, and don’t expect much else.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 18°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 18°C on Thu night). Winds increasing (light winds from the NW on Thu night, strong winds from the NW by Sat afternoon). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | W 8 | WNW 8 | NNW 7 | NW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 6 | NW 6 | WNW 4 | WNW 9 | WNW 8 | WNW 4 | WNW 6 | WNW 6 | WNW 7 | NW 8 | NW 7 | NW 6 | NW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 98 | 19 | 44 | 20 | 19 | 32 | 31 | 22 | 16 | 23 | 15 | 14 | 25 | 58 | 73 | 163 | 308 | 136 | 122 | 101 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | cross-on |
High Tide | 8:05PM2.97m | 8:38AM2.72m | 9:01PM2.76m | 9:38AM2.62m | 10:06PM2.60m | 10:46AM2.59m | 11:19PM2.53m | 11:54AM2.63m | 00:27AM2.54m | 12:53PM2.73m | 1:23AM2.62m | 1:42PM2.86m | 2:08AM2.73m | ||||||||
Low Tide | 1:44PM1.16m | 2:24AM1.17m | 2:41PM1.32m | 3:20AM1.33m | 3:49PM1.44m | 4:25AM1.43m | 5:08PM1.47m | 5:35AM1.46m | 6:21PM1.42m | 6:36AM1.41m | 7:19PM1.31m | 7:27AM1.32m | 8:04PM1.19m | ||||||||
 | |  | |  | | | | | | | | | | | | | | | | | |
 | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 8:57 | — | — | 8:55 | — | — | 8:55 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 21 | 22 | 20 | 21 | 21 | 20 | 21 | 22 | 20 | 20 | 21 | 19 | 21 | 21 | 19 | 22 | 22 | 20 |
Feels °C | 20 | 18 | 17 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 18 | 16 | 15 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 4 | NW 12 | NNW 7 | NW 7 | NNW 8 | WNW 10 | WNW 5 | WNW 10 | WNW 9 | WNW 5 | SW 12 | WNW 9 | WNW 8 | S 11 | WNW 8 | WNW 6 | S 12 | S 11 | WNW 9 | NW 13 | WNW 9 |
| kJ | 6 | 6 | 19 | 44 | 13 | 19 | 9 | 31 | 16 | 6 | 6 | 15 | 14 | 2 | 7 | 73 | 3 | 2 | 9 | 7 | 15 |
Swell 2 Height (m) Direction Period (s) | W 8 | SW 16 | W 7 | WNW 11 | WNW 10 | NNW 9 | WNW 10 | NW 10 | N 7 | WNW 9 | N 9 | NNW 6 | N 8 | — | S 12 | S 12 | S 16 | — | N 14 | S 15 | NNW 12 |
| kJ | 12 | 10 | 10 | 22 | 20 | 8 | 32 | 4 | 1 | 16 | 2 | 4 | 1 | — | 3 | 3 | 5 | — | 4 | 4 | 14 |
Swell 3 Height (m) Direction Period (s) | NNW 7 | S 10 | WNW 11 | W 7 | W 7 | SW 15 | NNW 7 | SW 13 | SW 13 | NNW 6 | — | S 12 | S 11 | — | — | W 11 | — | — | S 15 | — | — |
| kJ | 5 | 2 | 12 | 4 | 4 | 8 | 5 | 7 | 7 | 4 | — | 3 | 2 | — | — | 2 | — | — | 4 | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | WNW 4 | — | W 5 | WNW 6 | — | WNW 4 | WNW 6 | NW 6 | WNW 4 | WNW 4 | WNW 5 | WNW 4 | WNW 6 | — | WNW 7 | NW 8 | NW 7 | NW 6 | NW 6 |
| kJ | — | 98 | 12 | — | 14 | 19 | — | 15 | 22 | 15 | 23 | 10 | 11 | 25 | 58 | — | 163 | 308 | 136 | 122 | 101 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 463 | 62 | 62 | 507 | 28 | 165 | 566 | 28 | 28 | 544 | 140 | 31 | 962 | 469 | 459 | 879 | 534 | 175 | 375 | 308 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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.
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