Bicas Surf Break

Lat Long: 38.45° N 9.21° W

Bicas Surf Forecast and Surf Report

Issued: 6 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Bicas sea temperature is
19.3°C
1.5° 

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


Bicas surf forecast from 13 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 10AM (local time) - 5ft (1.5m), 14s period, NW swell with cross-offshore winds.
  • Most powerful swell: Saturday 19 Sep, 4AM (local time) - 5ft (1.6m), 15s period, NW swell with 1,025 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 10PM (local time) - 3ft (0.9m), 12s 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 Sunday (Sep 13) at 10PM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.1m and 11s. Another secondary swell of 0.5m and 3s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Bicas in the next 16 days are 1.6m 15s and forecast to arrive on Saturday (Sep 19) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Monday (Sep 14) at 10AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 13th Sep)3ft (0.9m) 12s
Best Surf10AM (Sat 19th Sep)5ft (1.5m) 14s
Most Powerful 4AM (Sat 19th Sep)5ft (1.6m) 15s

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


The Lowdown

Alright, let me tell you how it’s looking for Bicas. It’s a reef break that rarely breaks, so we’re not exactly spoiled for choice here, but there’s a couple of windows worth a look.

Right off the bat, there’s almost nothing for the first few days. Sunday the 13th and Monday the 14th have tiny little knee-high waves, but the real killer is the wind – it’s either glassy with hardly any swell, or it’s cross-on and messy. Tuesday the 15th through the following Monday are mostly a write-off with onshore winds and poor conditions. There’s a bit of a gap there with no real recommendations.

Then, finally, things turn around on Saturday the 19th. That morning is a proper standout. You’ve got a clean 5ft NW groundswell with a long period of 14 seconds, and the wind is light and cross-off from the ENE. That’s going to make for some well-shaped, powerful lines on the reef. The combined wave energy is strong at 845, so there’s plenty of push behind it. Just a heads up, this one is for advanced surfers only – that size and power on a reef is no joke.

Sunday the 20th morning is also good, with a clean 4ft NW swell, still a nice 12-second period, and light cross-off winds. It’s a notch down in size but still a fun option. The water temp is sitting at 67°F, which is about 3°F cooler than average for this time of year – a little nippy, so bring a thicker suit.

Monday the 22nd and Wednesday the 23rd mornings both offer clean, glassy conditions with 3ft NW swells and light offshore or glassy wind. These are smaller, but clean windows if you’re chasing a longboard or a fish.

After that, it fades back into tiny, weak surf through the end of the period. The swell energy drops right off, with values in the 20s and 30s, and the period gets short and choppy.

So, if you’re keen, aim for Saturday the 19th morning – that’s your best bet. It’s a rare break that only works when everything lines up, and for that one session, it does.

Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Sun afternoon, min 18°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the NNW by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Fri afternoon, min 18°C on Wed morning). Winds decreasing (strong winds from the NW on Wed afternoon, light winds from the NNE by Fri night).

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
2
1
0
0
0
0
0
0
0
0
1
0
0
0
0
2
3
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
NW
13
0.7
NW
12
1
NW
11
0.6
NW
11
0.6
NW
11
0.4
NW
10
0.4
NW
10
1
NW
8
1.3
NW
7
1.7
NW
9
1.8
NW
9
2
NW
10
1.7
NW
10
1.6
NW
10
1.6
NW
10
1.4
NW
9
1.3
NW
9
1.1
NW
16
1.5
NW
14
1.3
NW
13
1.1
NW
13
Wave Graph
Metric surfscale
Energy kJ
63
151
246
97
75
35
39
135
159
460
577
757
611
520
496
335
255
627
837
618
411
Wind (km/h)
5
S
15
WNW
5
WSW
10
S
15
W
10
NW
15
NW
30
NW
30
NNW
35
NNW
40
NW
25
NNW
10
N
35
NNW
20
N
15
N
30
NNW
10
NNE
10
ENE
20
WNW
5
ESE
Wind State
glassy
cross-on
glassy
cross-off
cross-on
on
on
on
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-off
cross-on
cross-off
High Tide
4:47PM3.44m
5:05AM3.25m
5:21PM3.26m
5:38AM3.12m
5:56PM3.04m
6:13AM2.96m
6:33PM2.80m
6:52AM2.77m
7:18PM2.56m
7:41AM2.59m
8:20PM2.36m
8:55AM2.46m
9:58PM2.27m
Low Tide
10:32AM0.60m
10:55PM0.65m
11:07AM0.72m
11:27PM0.82m
11:42AM0.88m
11:58PM1.01m
12:18PM1.08m
00:32AM1.22m
1:00PM1.28m
1:12AM1.42m
1:57PM1.48m
2:13AM1.61m
3:31PM1.59m
3:59AM1.69m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:16
7:16
7:18
7:18
7:20
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:49
7:46
7:45
7:44
7:42
7:40
7:38
 mm
Temp °C
26
27
27
24
27
27
25
24
20
20
21
19
24
25
20
25
26
21
26
26
27
Feels °C
25
24
26
23
24
25
22
20
18
15
15
14
20
19
15
22
21
18
24
22
26
  • 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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