Bicas Surf Break

Lat Long: 38.45° N 9.21° W

Bicas Surf Forecast and Surf Report

Issued: 6 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bicas sea temperature is
20.0° C
0.8° 

Bicas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Bicas surf forecast from 17 Aug 2026:

  • Best quality surf: Monday 17 Aug, 10PM (local time) - 2.5ft (0.8m), 8s period, NW swell with glassy winds.
  • Most powerful swell: Friday 21 Aug, 4PM (local time) - 5ft (1.5m), 8s period, NW swell with 291 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 10PM (local time) - 2.5ft (0.8m), 8s 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 Monday (Aug 17) at 10PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bicas in the next 16 days are 1.5m 8s and forecast to arrive on Friday (Aug 21) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Tuesday (Aug 18) at 4AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 17th Aug)2.5ft (0.8m) 8s
Best Surf10PM (Mon 17th Aug)2.5ft (0.8m) 8s
Most Powerful 4PM (Fri 21st Aug)5ft (1.5m) 8s

Table - best surf conditions forecast for Bicas over the next 16 days.


Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 26°C on Mon morning, min 20°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Thu afternoon, min 19°C on Thu night). Mainly fresh winds.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
NW
8
0.8
NW
8
0.7
NW
8
0.7
NW
8
0.7
NW
8
0.6
NW
8
0.5
NW
8
0.5
NW
8
0.4
WNW
10
0.4
WNW
9
0.5
WNW
9
0.5
WNW
9
1.3
NW
8
1.5
NW
8
1.2
NW
10
1.1
NW
9
1.3
NW
9
0.9
NW
6
0.9
NW
8
1
NW
8
0.9
NW
8
Wave Graph
Metric surfscale
Energy kJ
109
93
65
70
69
54
28
28
35
32
44
43
210
291
269
183
281
64
95
123
101
Wind (km/h)
10
SE
20
WSW
5
WSW
15
S
15
WSW
10
WSW
15
SSW
15
W
10
NW
10
WNW
30
NNW
25
NNW
30
NNW
35
NW
20
NNW
20
NW
25
NW
15
NNW
10
NW
15
NW
20
N
Wind State
off
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross-on
on
cross-on
on
cross-on
on
on
on
on
on
on
on
on
cross-on
High Tide
6:35PM3.14m
6:57AM2.91m
7:17PM2.89m
7:41AM2.74m
8:06PM2.65m
8:36AM2.59m
9:11PM2.45m
9:50AM2.49m
10:39PM2.36m
11:17AM2.51m
00:05AM2.41m
12:28PM2.63m
1:05AM2.55m
Low Tide
12:17PM0.91m
00:45AM0.99m
12:59PM1.10m
1:25AM1.20m
1:46PM1.31m
2:11AM1.40m
2:49PM1.48m
3:18AM1.56m
4:22PM1.57m
4:50AM1.61m
5:57PM1.51m
6:13AM1.53m
7:00PM1.36m
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
light rain
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:54
6:54
6:54
6:56
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:27
8:25
8:23
8:22
8:22
8:20
 mm
1
1
1
Temp °C
26
24
22
23
22
21
22
22
21
22
24
20
21
21
19
20
20
19
19
19
20
Feels °C
26
24
24
23
21
22
22
22
22
21
20
16
16
16
16
18
16
16
19
17
18
  • 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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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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