The Reef Surf Break

Lat Long: 38.93° N 9.42° W

The Reef Surf Forecast and Surf Report

Issued: 6 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Reef sea temperature is
20.0°C
0.5° 

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


The Reef surf forecast from 6 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 7AM (local time) - 2.5ft (0.7m), 14s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 10 Sep, 1PM (local time) - 7ft (2.1m), 11s period, NNW swell with 936 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 7AM (local time) - 3ft (0.9m), 6s period with NNW swell.

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 Saturday (Sep 12) at 7AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 9s. 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 2.1m 11s and forecast to arrive on Thursday (Sep 10) at 1PM. 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 2s period and expected on Saturday (Sep 12) at 7AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 12th Sep)3ft (0.9m) 6s
Best Surf 7AM (Sun 13th Sep)2.5ft (0.7m) 14s
Most Powerful 1PM (Thu 10th Sep)7ft (2.1m) 11s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what The Reef has got cookin' for us. It's a bit of a mixed bag, but there are a couple of windows where this place will really turn it on.

Right now, there's no surf worth paddling out for. The first few days are a write-off with messy cross-shore winds and lumpy conditions. We're looking at a bit of a slow start until we get to the middle of next week.

The first real glimmer of hope comes on the morning of Saturday the 12th. The wind swings around to a light cross-offshore breeze from the ESE at 6 mph, cleaning things right up. The swell is tiny at 3 ft from the NNW with a short period of 6 seconds, and the combined wave energy is weak (94). It's not going to be epic, but it's surfable and the conditions will be clean.

Now, the standout. Keep your eyes on Sunday the 13th. The morning session is looking absolutely perfect. We're talking glassy conditions with the wind dropping out completely to a slight air from the east at just 3 mph. The reef will be firing with a clean 3 ft groundswell from the NW, and that long 13-second period means real power and shape. The combined energy is solid (416). For a reef break, this is a dream setup—long, clean lines with plenty of time between sets to get into position. This is the one to circle on your calendar.

Monday the 14th morning is also worth a mention. The wind stays light, coming from the north at 3 mph as a cross-offshore, keeping the surface clean. You'll have 4 ft of NW swell at 11 seconds (351 combined energy). It's a notch down from Sunday, but still a very good session.

Further out, the weekend of the 19th and 20th looks promising but less certain. Saturday the 19th morning has a fresh 19 mph offshore wind from the east, which is a huge plus for cleanliness, with a 7 ft NNW swell. The period is short at 9 seconds, so it'll be a bit of a messy, pushy wave, but the offshore wind will make it more manageable. The combined energy is strong (803). Then, on Monday the 21st, we get another shot of glassy conditions in the morning with a 5 ft NW groundswell at 11 seconds (570 combined energy). The forecast says "expect very good surf conditions," and with the wind dropping out from the south at 3 mph, I'd be all over it.

The Reef is a tricky, advanced wave on a good day, and with a 7 ft+ swell coming through mid-month, it will be big, powerful, and only for the experts. For the rest of us, focus on that Sunday the 13th morning window—it's the cleanest, most user-friendly the place is going to look for a while.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun morning, min 17°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Fri morning, min 17°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the NNE by Fri night).

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
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
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
NNW
12
1.2
NW
11
1.3
WNW
14
1.7
WNW
12
1.6
WNW
12
1.4
WNW
11
1.3
WNW
10
1.1
NW
9
1
NW
9
1.7
NNW
8
1.9
NNW
8
2
NNW
8
2
NNW
8
2
NNW
11
1.7
NNW
8
1.5
NNW
8
1.4
NNW
7
1
NNW
6
0.9
NNW
6
0.8
NNW
7
0.8
WNW
10
Wave Graph
Metric surfscale
Energy kJ
464
347
660
880
713
444
302
194
148
384
419
471
512
871
302
244
208
90
55
63
130
Wind (km/h)
15
N
25
N
25
N
25
N
30
N
25
N
25
N
25
NNW
20
NNW
35
N
35
NNW
30
N
25
N
30
N
25
N
20
N
25
NNW
15
N
10
ESE
20
SW
10
N
Wind State
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-on
cross
High Tide
11:12AM2.31m
00:04AM2.23m
12:30PM2.52m
1:11AM2.43m
1:28PM2.77m
2:02AM2.63m
2:16PM3.00m
2:45AM2.80m
2:59PM3.15m
3:25AM2.92m
3:38PM3.21m
4:01AM2.96m
4:15PM3.17m
Low Tide
5:46PM0.74m
6:11AM0.79m
6:58PM0.51m
7:13AM0.57m
7:52PM0.27m
8:03AM0.35m
8:37PM0.08m
8:45AM0.17m
9:16PM-0.04m
9:25AM0.07m
9:53PM-0.07m
10:02AM0.03m
10:27PM-0.02m
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
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>
7:09
7:11
7:11
7:13
7:13
7:13
7:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
7:59
7:58
7:55
7:54
7:52
7:51
 mm
Temp °C
23
22
19
22
21
19
20
20
20
19
19
17
20
20
18
24
23
24
28
26
24
Feels °C
22
20
17
20
18
17
17
17
20
14
14
11
16
16
14
22
20
22
26
25
22
  • Map Icons:
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  • 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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