Reef Surf Break

Lat Long: 38.98° N 9.42° W

Reef Surf Forecast and Surf Report

Issued: 12 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Reef sea temperature is
19.7° C
1.0° 

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


Reef surf forecast from 21 Aug 2026:

  • Best quality surf: Friday 28 Aug, 1AM (local time) - 7ft (2.1m), 10s period, NW swell with cross-onshore winds.
  • Most powerful swell: Sunday 23 Aug, 7AM (local time) - 6ft (1.9m), 12s period, WNW swell with 934 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 5ft (1.6m), 12s period with WNW 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 (Aug 23) at 4AM. The primary swell is predicted to be 1.6m 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 1.9m 12s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 10s period and expected on Friday (Aug 21) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 23rd Aug)5ft (1.6m) 12s
Best Surf 1AM (Fri 28th Aug)7ft (2.1m) 10s
Most Powerful 7AM (Sun 23rd Aug)6ft (1.9m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s brewing for this stretch. It’s a story of waiting it out. We start with a heap of flat, crappy, or just messy conditions before a real pulse of energy finally rocks up at the very end of the run.

The only break we’re looking at is Reef. It’s an exposed reef setup that needs a solid, clean swell from the southwest to get going. Right now, we’re in a rough patch. The water temp is 68°, which is a bit colder than usual for this time of year, so you’ll want the thicker suit.

Looking at the immediate days, it’s bleak. Through the 20th, 21st, and 22nd, we’ve got tiny, weak dribble and junky cross-shore winds. Swell heights barely break 1ft to 2ft if we’re lucky, and the combined energy is pitiful, a mere 87 or less. Not worth getting wet for.

We do see a quick pulse on the morning of Sunday the 23rd. Swell bumps up to 6ft from the west with a solid 11-second period. The combined energy jumps to 864, a moderate kick, and the winds go clean, cross-offshore. That’s our first and only real window in this first week. It’s a marginal call with the tide, but it’s the best we’ve seen by a mile.

After that, it all falls apart again. Through the 24th, 25th, 26th, and 27th, it’s back to onshore winds, lumpy conditions, and weak, choppy surf. The energy drops back into triple, then double digits. A few days with height around 6ft to 6ft, but the winds are all wrong, making it a total mess.

Now, here’s where it gets interesting. Hold out for Friday the 28th of August. That morning, we’re looking at a serious event. A 10ft swell from the northwest with a 12-second period, pumping a massive 2259 combined energy into the reef. The winds are offshore, and the tide looks favorable. But—and this is a big but—this swell is too big for this break. That kind of power and height is expert-only territory, and even then, it’s pushing limits. The afternoon drops to 8ft with similar energy (1715), still massive, but the wind swings cross-shore and gets fresh, making it lumpy. This setup looks more interesting for kite surfing than paddle surfing.

From Saturday the 29th through to the end of the run into early September, the plug gets pulled. Swell disappears back to zero, then dribbles in with weak 4ft or less, poor winds, and no energy. It’s a total flat spell for over a week.

The Bottom Line: There is one true standout, and it’s the morning of Sunday the 23rd. That 6ft west swell with clean cross-offshore winds is your best bet for a manageable, clean session. The Friday the 28th pulse is huge, but too big for a safe or enjoyable paddle. If you are a very experienced, confident charger, you might look at the 28th, but be warned. For the rest of us, that Sunday the 23rd morning is the only real window of quality on offer.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun morning, min 18°C on Thu night). Winds decreasing (fresh winds from the N on Thu night, light winds from the WSW by Sat night).

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Sun night. Warm (max 23°C on Mon morning, min 19°C on Tue night). Winds decreasing (strong winds from the S on Mon morning, light winds from the SW by Mon night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
1
2
0
1
0
0
0
0
0
0
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)
0.4
WNW
8
0.2
SSW
15
0.5
WNW
9
0.5
W
9
0.5
W
9
0.9
WNW
14
1.8
WNW
11
1.9
W
10
1.4
W
9
1.6
WSW
8
2.5
SW
8
1.7
WSW
7
1.1
W
7
1.1
W
6
1
W
6
1.1
W
7
1.4
WNW
8
1.4
WNW
8
1.8
WNW
8
1.9
WNW
9
2.1
NW
10
Wave Graph
Metric surfscale
Energy kJ
22
21
42
38
39
312
792
745
318
336
750
310
107
92
73
111
275
290
477
553
828
Wind (km/h)
30
N
30
NNW
20
NNW
10
NW
15
W
10
S
20
SSE
30
S
20
SSE
40
S
40
SSW
20
WSW
15
SSW
20
SW
20
WSW
15
WSW
20
WSW
20
W
20
NW
20
NW
15
NNW
Wind State
cross
cross
cross
cross-on
on
cross
cross-off
cross
cross-off
cross
cross-on
on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
9:50AM2.03m
10:42PM1.88m
11:22AM2.03m
00:11AM1.94m
12:36PM2.16m
1:11AM2.08m
1:28PM2.34m
1:54AM2.25m
2:08PM2.54m
2:30AM2.42m
2:43PM2.72m
3:03AM2.57m
3:15PM2.87m
3:34AM2.69m
Low Tide
4:18PM1.11m
4:48AM1.16m
5:56PM1.07m
6:14AM1.07m
7:03PM0.92m
7:12AM0.91m
7:48PM0.74m
7:53AM0.72m
8:24PM0.55m
8:28AM0.54m
8:57PM0.38m
9:01AM0.39m
9:28PM0.24m
clear
clear
clear
clear
clear
clear
part cloud
cloud
thunderstorm
thunderstorm
rain showers
clear
clear
part cloud
rain showers
clear
clear
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:56
6:58
6:58
7:00
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:22
8:22
8:21
8:19
8:17
8:15
 mm
13
4
1
1
2
Temp °C
19
20
18
20
20
19
23
23
21
23
22
21
22
22
21
21
21
20
20
21
19
Feels °C
15
16
15
19
18
20
20
20
21
17
17
21
21
21
21
19
19
18
17
18
17
  • 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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