The Reef surf break

The Reef surfForecast / Ericeira / Portugal

information circle16 Day Weather and Surf, issued 6 pm Wednesday 20 May 2026 WEST
Forecast update in hr  min  s Forecast update imminent
The Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Reef sea temperature is
16.3° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for The Reef this week:

The surf forecast for The Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 1AM. The primary swell is predicted to be 2.0m and 12s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Reef in the next 16 days are 2.0m 12s and forecast to arrive on Thursday (May 21) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (May 26) at 1AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 21st May)6.5ft (2.0m) 12s
Best Surf 1AM (Thu 21st May)6.5ft (2.0m) 12s
Most Powerful 1AM (Thu 21st May)6.5ft (2.0m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sat morning. Warm (max 27°C on Fri afternoon, min 17°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Tue morning, min 19°C on Sat night). Wind will be generally light.

Wed
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
4
2
2
3
3
2
0
2
0
1
2
0
1
2
2
4
3
3
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
WNW
13
2
WNW
12
1.7
WNW
12
1.6
WNW
11
1.6
WNW
11
1.7
WNW
11
1.6
WNW
11
1.5
W
11
1.4
WNW
11
1.4
WNW
11
1.2
WNW
10
1.1
WNW
10
1
WNW
9
0.9
WNW
9
0.9
NW
16
1.4
NW
14
1.7
NW
13
1.6
NW
13
1.6
NW
12
1.4
NW
12
1.2
WNW
11
Wave Graph
Metric surfscale
Energy kJ
2021
1117
731
571
597
655
622
555
460
408
269
218
168
130
349
731
1011
891
742
505
317
Wind (km/h)
15
NNW
10
NE
5
SSW
10
NNW
10
ENE
5
WSW
15
NNW
20
NW
5
N
10
WNW
5
N
10
S
20
WSW
10
ENE
15
SE
5
WNW
10
NE
15
E
15
SSE
5
N
20
ESE
cross-on
cross-off
cross
cross
cross-off
glassy
cross
cross-on
glassy
cross-on
cross
cross-off
on
off
cross-off
cross-on
cross-off
off
cross-off
cross
cross-off
High Tide
6:20PM2.90m
6:58AM2.50m
7:19PM2.75m
8:02AM2.33m
8:25PM2.61m
9:13AM2.22m
9:35PM2.50m
10:25AM2.20m
10:44PM2.45m
11:30AM2.25m
11:46PM2.45m
12:24PM2.34m
00:40AM2.46m
Low Tide
00:43AM0.28m
12:55PM0.54m
1:47AM0.44m
1:58PM0.70m
2:58AM0.57m
3:10PM0.80m
4:10AM0.64m
4:24PM0.83m
5:16AM0.64m
5:33PM0.80m
6:11AM0.61m
6:30PM0.72m
6:57AM0.57m
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
rain showers
clear
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:18
6:18
6:18
6:16
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:46
8:47
8:49
8:49
8:50
8:51
8:52
8:52
1
Temp °C
23
21
23
25
25
25
27
20
25
26
22
24
23
21
28
26
23
29
33
21
28
21
19
21
22
24
24
24
17
24
24
23
22
20
20
26
24
19
25
29
20
25
Swell 1
Height (m)
Direction
Period (s)
2.5
WNW
13
2
WNW
12
1.7
WNW
12
1.6
WNW
11
1.6
WNW
11
1.7
WNW
11
1.6
WNW
11
1.5
W
11
1.4
WNW
11
1.4
WNW
11
1.2
WNW
10
1.1
WNW
10
1
WNW
9
0.9
WNW
9
0.9
NW
16
1.4
NW
14
1.7
NW
13
1.6
NW
13
1.6
NW
12
1.4
NW
12
1.2
WNW
11
Energy kJ
2021
1117
731
571
597
655
622
555
460
408
269
218
168
130
349
731
1011
891
742
505
317
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.2
SSW
13
0.2
SSW
14
0.2
SSW
14
0.2
S
5
0.2
SSW
13
0.1
SW
13
0.8
NNW
5
0.7
NNW
6
0.5
N
6
0.5
N
6
0.8
WNW
9
0.7
WNW
8
0.1
S
12
0.3
S
5
0.3
S
5
0.3
S
5
0.3
SSW
4
Energy kJ
8
8
7
7
17
18
21
2
17
7
33
27
17
17
103
62
3
4
5
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
S
16
0.1
SW
16
0.1
S
10
0.1
SW
14
0.1
N
11
0.2
N
10
0.2
N
9
0.1
SW
13
0.1
SW
13
0.1
NW
18
0.4
NNW
6
0.4
NNW
6
0.1
SW
19
0.1
SW
18
0.1
SW
18
0.1
SW
17
0.3
N
4
Energy kJ
5
10
2
8
2
8
7
7
7
13
12
12
15
12
12
12
3
Wind waves
Height (m)
Direction
Period (s)
0.5
N
4
0.5
N
4
0.5
N
4
0.4
ESE
3
Energy kJ
7
8
9
3
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
2
3
3
2
2
2
2
2
2
2
1
2
3
4
3
3
3
2
Distance (km)
26
0
0
26
0
0
26
28
0
26
20
0
166
0
0
0
0
0
0
5
0
Best forecast wave conditions in Ericeira
Rating
(10 max)
4
3
3
3
2
2
1
2
3
4
3
3
3
2
Best forecast wave conditions in Portugal
Rating
(10 max)
4
4
3
3
3
3
3
3
2
2
2
2
4
1
3
3
4
3
3
3
2
Header Global
Rating
(10 max)
4
5
5
5
7
6
5
5
9
6
5
5
4
4
4
5
4
4
4
4
5
  • 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 The Reef Surf forecast

The above surf forecast table for The Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Reef can be found by selecting the local surf guide option on the grey menu. Our The Reef 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 (The Reef) 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 The Reef 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.

The Reef is 15 km (9 miles) from the city of Sintra. If you plan a holiday in Ericeira, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.

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