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Surf Forecasts:

Bicas surfForecast / Lisboa / Portugal

information circle12 Day Weather and Surf, issued 11 pm Saturday 17 Jan 2026 WET
Forecast 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
15.0° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Bicas this week:

The surf forecast for Bicas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jan 23) at 12AM. The primary swell is predicted to be 4.5m and 16s period with a secondary swell of 4.0m and 16s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Bicas in the next 12 days are 7.0m 19s and forecast to arrive on Saturday (Jan 24) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Jan 21) at 9AM.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 23rd Jan)15ft (4.5m) 16s
Best Surf12AM (Fri 23rd Jan)15ft (4.5m) 16s
Most Powerful 3AM (Sat 24th Jan)23ft (7.0m) 19s

Table - best surf conditions forecast for Bicas over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 4mm), mostly falling on Sat night. Very mild (max 13°C on Mon morning, min 7°C on Sun morning). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Thu night. Very mild (max 15°C on Wed afternoon, min 10°C on Fri afternoon). Winds increasing (light winds from the SW on Tue night, strong winds from the SW by Thu night).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sat
24
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
2
0
1
1
0
1
2
1
2
2
1
0
0
0
!
0
0
!
!
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
WNW
1.5
NW
1.9
NW
1.7
WNW
2.2
NW
1.5
WNW
1.4
NW
2.5
NW
2.3
WNW
2.5
WNW
3
WNW
3
WNW
3
WNW
3
WNW
4
NW
4.5
NW
4
WNW
5
WNW
7
WNW
7
WNW
7
WNW
Period(s) (?)131312111110181615151412131319161414181818
Wave
Graph
(?)Metric surfscale
Energy kJ (?)23857449456451100466112430402368265532302377260127151125211294579210170316833148328973
Wind
(km/h)
15
NE
20
NNE
20
NNE
10
N
20
N
35
NNW
20
N
20
NNW
15
WNW
15
SW
35
SW
30
SW
25
NNW
25
NW
20
WSW
45
SW
30
WNW
40
W
40
W
35
NW
40
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		cross-
on		cross-
on		oncross-
on		ononcrosscrosscrosscross-
on		oncross-
on		crosscross-
on		cross-
on		cross-
on		oncross-
on
High Tide
/ height (m)
2:11AM
3.15
2:33PM
2.97
2:46AM
3.25
3:06PM
3.04
3:19AM
3.32
3:40PM
3.08
3:53AM
3.35
4:14PM
3.09
4:28AM
3.35
4:50PM
3.07
5:05AM
3.30
5:29PM
3.01
5:46AM
3.20
Low Tide
/ height (m)
8:26AM
0.90
8:30PM
0.93
8:59AM
0.81
9:03PM
0.86
9:32AM
0.76
9:35PM
0.81
10:05AM
0.73
10:10PM
0.80
10:40AM
0.75
10:46PM
0.84
11:18AM
0.80
11:26PM
0.91
12:00PM
0.89
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sat
24
Sunrise-7:50--7:50--7:50--7:50--7:48--7:48--7:48-
Sunset--5:42--5:43--5:44--5:45--5:46--5:47--5:49
rain showers
clear
clear
part cloud
part cloud
clear
cloud
cloud
part cloud
rain showers
light rain
light rain
rain showers
part cloud
cloud
heavy rain
part cloud
mod rain
thunderstorm
rain showers
rain showers
Rain (mm)
4--------1432--11-6522
Temp. °C101012101313121313141415141414151412111213
Feels °C (?)657586799109111210101063134
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Bicas at:
surf-forecast.com

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 12 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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