Reef Surf Break

Lat Long: 38.98° N 9.42° W

Reef Surf Forecast and Surf Report

Issued: 6 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Reef sea temperature is
18.5°C
2.0° 

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


Reef surf forecast from 15 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 10AM (local time) - 7ft (2.2m), 10s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 10AM (local time) - 7ft (2.2m), 10s period, NW swell with 1,009 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 10AM (local time) - 7ft (2.2m), 10s period with NW swell.

Best Forecast Surf Conditions for Reef this week:

The surf forecast for Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 10AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 0.1m and 18s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Reef in the next 16 days are 2.2m 10s and forecast to arrive on Thursday (Sep 17) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Wednesday (Sep 16) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Thu 17th Sep)7ft (2.2m) 10s
Best Surf10AM (Thu 17th Sep)7ft (2.2m) 10s
Most Powerful10AM (Thu 17th Sep)7ft (2.2m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what the ocean’s got cookin’ at this reef over the next couple of weeks. Fair warning: it’s a slow start, so don’t be in a hurry.

We’re looking at a long dry spell to kick things off. From now until September 20th, the surf is pretty much a write-off. The energy is weak, with combined swell readings barely crackin’ 120 (a paltry 52 combined energy at best), and the wind is just relentless—howling out of the north, mostly cross and messy. It’s a lot of chop and no shape. You’d be better off waxing your surfboard and just staring at it.

First real glimmer of hope shows up on Monday, September 21st morning. After a week-plus of nothing, we finally get a pulse. The swell is a clean 3ft out of the NW with a period of 13 seconds—nice groundswell energy. The wind is light out of the SE, cross-offshore, so the surface is clean. Combined energy jumps to 536. This is the standout of the whole forecast window. It’s not huge, but for this break, that’s about as good as it gets. The swell direction of NW lines up well with what this reef wants, though the optimum is SW.

If you can only paddle out once, make it that Monday morning session. It’s a fairly consistent spot, but watch for crowds—this one gets *often* busy, so get in early. Water temps are about average for this time of year, no wild anomalies to report.

After that, the rest of the week stays interesting but not as clean. Tuesday, September 22nd morning is another decent look: 4ft NW, 12-second period, light SE cross-off wind, 405 combined energy. Good fun, but not as good as Monday.

Then we get a real treat for the patient surfer. Wednesday, September 23rd morning brings glassy conditions—dead calm, wind is almost nothing out of the SE. The swell is 3ft but with a whopping 16-second period, giving it serious push. That’s a long-period groundswell, which at a reef setup like this will wrap in and hold up nicely. Combined energy sits at 414. This is your second standout: it won’t be big, but it will be *beautiful*.

Thursday, September 24th morning bumps up in size to 6ft NW, still with light cross-off wind from the SSE, and combined energy hitting 937. That’s moderate-strong energy, but 6ft is pushing into intermediate territory, and it could get a bit fat for this break. Still, if you’re competent, it’s a blast.

Friday, September 25th morning is another glassy morning (3ft NW, 15-second period), with 546 combined energy. Clean lines, no wind. Lovely.

Into the second week, things get a bit more ordinary. Saturday, September 26th and Sunday, September 27th see the swell drop off and the wind swing more northerly. Not horrible, but nothing special.

Then Monday, September 28th morning throws up a surprise: 5ft WNW, 10-second period, light cross-off NNE wind, 373 combined energy. That’s a solid, rideable morning. But by the afternoon, the wind picks up and it gets bumpy.

The very end of the window, Tuesday, September 29th and Wednesday, September 30th, pulls in bigger swell—6ft to 7ft—but the period drops to 8-10 seconds and the wind is cross-onshore or cross, making it messy. Combined energy hits 1454 on the 30th morning, but with a strong cross-onshore wind and short-period chop, that’s more for the adrenaline junkies or the kite crowd. The reef will be a washing machine for paddle surfing.

So to sum it up: the first week is a total loss, then we get three absolute gems: Monday, September 21st morning, Wednesday, September 23rd morning, and Friday, September 25th morning. Circle those on your calendar. The rest is either average or blown out.

Stay stoked, and I’ll see you in the water.

- Rusty

Short Range Forecast

Mostly dry. Warm (max 21°C on Thu morning, min 17°C on Tue night). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Sun morning, min 18°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri afternoon, calm by Sun night).

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
!
0
0
0
0
0
0
0
0
0
0
0
1
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
WNW
8
1.2
NNW
5
0.7
NW
10
0.1
S
13
0.1
SW
13
0.1
S
12
2.2
NW
10
0.1
S
16
0.1
SW
16
0.1
SW
15
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.1
S
13
0.1
S
13
0.1
S
13
0.1
NW
17
0.4
NW
15
0.8
NW
13
1.3
NW
12
Wave Graph
Metric surfscale
Energy kJ
22
74
108
3
6
3
1009
5
10
9
8
8
8
7
3
7
3
11
76
253
520
Wind (km/h)
25
N
30
N
40
N
40
N
45
N
40
N
30
NNE
35
N
35
N
25
N
30
NNW
20
NNE
10
E
10
WNW
15
NNE
5
E
15
NW
10
N
5
ESE
15
W
10
N
Wind State
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross-off
off
on
cross-off
off
cross-on
cross
cross-off
on
cross
High Tide
6:02PM2.62m
6:18AM2.55m
6:39PM2.37m
6:56AM2.36m
7:22PM2.13m
7:44AM2.16m
8:22PM1.92m
8:58AM2.00m
10:00PM1.81m
10:42AM1.99m
11:40PM1.88m
12:03PM2.12m
00:41AM2.05m
Low Tide
11:48AM0.36m
00:04AM0.50m
12:25PM0.57m
00:38AM0.73m
1:07PM0.80m
1:19AM0.95m
2:02PM1.01m
2:18AM1.13m
3:32PM1.14m
4:00AM1.22m
5:23PM1.11m
5:40AM1.12m
6:33PM0.94m
part cloud
clear
clear
clear
clear
clear
clear
clear
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>
7:18
7:18
7:20
7:20
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:46
7:45
7:43
7:42
7:39
7:38
7:37
 mm
Temp °C
20
20
18
18
19
19
21
20
18
21
21
22
27
24
25
29
27
25
29
25
24
Feels °C
17
17
13
11
12
14
15
15
13
17
17
19
25
22
23
28
25
22
28
23
22
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Reef:

join our community of surf reporters

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 Reef 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.


Information about the Reef Surf forecast

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

Are you planning a holiday in Ericeira? If you are looking for accommodation near Reef, camping, hotels and holiday cottages in Ericeira, consider staying in Torres Vedras which is 19 km (12 miles) away. Other places in and around Ericeira where you can find information about places to rent, and car hire include Sintra which is 21 km (13 miles) away, Rio de Mouro, Cacem and Loures.

Nearest locationNearest