Reef Surf Break

Lat Long: 38.98° N 9.42° W

Reef Surf Forecast and Surf Report

Issued: 6 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Reef sea temperature is
20.3°C
0.1° 

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


Reef surf forecast from 31 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 4AM (local time) - 4.5ft (1.4m), 12s period, NW swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 7PM (local time) - 4.5ft (1.4m), 14s period, NW swell with 721 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 4AM (local time) - 4.5ft (1.4m), 12s 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 Sunday (Sep 06) at 4AM. The primary swell is predicted to be 1.4m and 12s period. 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 1.4m 14s and forecast to arrive on Saturday (Sep 05) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 10s period and expected on Tuesday (Sep 01) at 1AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 6th Sep)4.5ft (1.4m) 12s
Best Surf 4AM (Sun 6th Sep)4.5ft (1.4m) 12s
Most Powerful 7PM (Sat 5th Sep)4.5ft (1.4m) 14s

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


The Lowdown

Alright, Rusty here again. Let's talk about the next couple of weeks in the water. It's a long, slow burn before we get a proper pulse.

We start off with a real rough patch. From Monday, August 31st, all the way through the first week of September, it's just messy. Cross-shore winds are blowing hard at 30 km/h, and the swell is gutless. The combined energy is mostly in the low hundreds, with a few tiny pulses. The water is a normal 20.3° for this time of year. Honestly, it's a write-off for a solid week.

We get a glimmer of hope on Friday, September 4th, with some cleaner wind, but the swell is a measly 0.6m. Not worth a paddle.

Things start to look up in the second week. Monday, September 7th, has a clean morning with a 0.8m groundswell from the WNW, with a 14-second period. It's a step in the right direction. The real standout is Monday, September 14th. The morning is glassy, but the afternoon is where it's at. A 1.6m swell from the NW with a 17-second period arrives, pumping the combined energy up to 1,634 units. That's a serious, long-period groundswell that will be running beautifully at the Reef.

But the one to really get excited about is Tuesday, September 15th. The forecast is for a clean, offshore breeze and a 2.1m NW swell with a 14-second period. The combined energy is a huge 1,541 units. This is a powerful swell, and with that offshore wind, it will be perfect. But at 2.1m, make no mistake, this is for experts only. The Reef will be handling that size and direction (SW optimum) perfectly, but it's going to be a heavy, demanding session.

Short Range Forecast

Mostly dry. Warm (max 21°C on Wed morning, min 17°C on Tue night). Winds decreasing (fresh winds from the N on Mon night, light winds from the N by Wed night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 33°C on Sat morning, min 18°C on Thu night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
1
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)
1.1
NW
9
1.4
NW
10
0.1
SW
16
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.6
NW
8
0.7
NW
8
0.2
SSW
15
0.4
NW
9
0.6
WNW
8
0.6
WNW
8
0.9
NNW
6
0.8
WNW
10
0.8
WNW
9
0.5
NW
16
1.2
NW
15
0.5
WNW
9
0.5
WNW
10
0.6
W
9
0.5
W
9
Wave Graph
Metric surfscale
Energy kJ
183
384
10
23
22
21
55
60
22
21
48
48
44
122
106
132
631
46
51
58
40
Wind (km/h)
30
N
30
N
30
N
30
N
30
N
30
N
25
N
25
NNW
20
N
10
N
20
NNW
20
N
25
NNE
30
N
20
NNE
20
NNE
25
NNW
15
N
0
NE
15
WNW
10
NNE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross
cross
glassy
on
cross-off
High Tide
5:24PM2.94m
5:46AM2.76m
6:02PM2.80m
6:25AM2.66m
6:46PM2.61m
7:12AM2.51m
7:40PM2.39m
8:13AM2.35m
8:55PM2.19m
9:37AM2.25m
10:33PM2.12m
11:12AM2.31m
00:04AM2.23m
Low Tide
11:11AM0.19m
11:35PM0.18m
11:48AM0.28m
00:12AM0.31m
12:31PM0.42m
00:55AM0.50m
1:22PM0.60m
1:49AM0.71m
2:31PM0.77m
3:05AM0.89m
4:07PM0.85m
4:44AM0.93m
5:46PM0.74m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:05
7:07
7:07
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:08
8:07
8:06
8:04
8:01
8:00
 mm
1
Temp °C
20
20
18
20
20
18
21
21
18
23
23
20
24
24
23
33
28
28
29
26
27
Feels °C
16
16
14
16
16
14
19
18
16
23
22
19
21
21
20
28
24
25
29
25
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 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.

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