The Reef Surf Break

Lat Long: 38.93° N 9.42° W

The Reef Surf Forecast and Surf Report

Issued: 6 pm 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Reef sea temperature is
19.3° C
0.4° 

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 16 Jul 2026:

  • Most powerful swell: Tuesday 21 Jul, 4PM (local time) - 3.5ft (1.0m), 9s period, NNW swell with 151 kJ wave energy.

Best Forecast Surf Conditions for The Reef this week:

The most powerful waves expected at The Reef in the next 16 days are 1.0m 9s and forecast to arrive on Tuesday (Jul 21) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Tue 21st Jul)3.5ft (1.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Let's get this straight: the forecast for The Reef is a real mixed bag, and you’ll need to be patient. Most of this 16-day window is a write-off, with a long stretch of poor conditions and onshore or cross-shore winds. The only real light at the end of the tunnel is a specific morning that looks absolutely insane for the experienced crew.

We start off with a big gap. There’s nothing worth mentioning from Thursday the 16th right through until Saturday the 26th of July. That’s over a week of poor surf, with tiny waves, onshore chop, and hardly any energy. The reef is basically flat or a messy washing machine. The combined swell energy barely gets over 100 (moderate) a few times, like on Monday the 20th afternoon (141), but it’s still just too choppy and weak to ride.

The first whiff of something bigger comes on Sunday the 26th of July. The morning shows a 10ft swell from the NNW with a period of 9 seconds and a massive combined energy of 1253 (strong). That’s a lot of water moving, but it’s accompanied by a moderate cross-shore wind and lumpy chop. The model calls it marginal and only gives it a 2/10. That’s a hard pass for most, and the size (over 8ft) puts it squarely in the expert-only zone. It’s big, but messy.

Now, for the standout. Monday the 27th of July. This is the one circled on the calendar. The morning session is a dream scenario. We’re looking at a solid 10ft groundswell from the NNW, period 9 seconds, and the combined energy is a massive 1562 (very strong). But the killer detail is the wind: glassy. Zero wind. The report says "excellent surf conditions for experienced surfers" and that’s no joke. For a reef break like The Reef, a clean, glassy morning with a 10ft swell from the optimum NW direction will set up some proper, heavy barrels. The water temperature is currently 67°F, which is about 0.7°F cooler than normal, so nothing to worry about there. This is an expert-only session, and it’s a long-range call, so keep an eye on it, but right now it looks like a proper day of reckoning.

After that, the swell drops. The Monday afternoon turns onshore, and by Tuesday the 28th the wind is back to cross-shore and the energy starts to fade. It’s still big enough for the hardcore crew on Tuesday morning (8ft, cross-shore, moderate chop), but the quality is gone. By Wednesday the 29th, strong winds hammer the place, and the rest of the outlook is a mix of big, messy, windy conditions with no real quality.

The bottom line: The first 10 days are a total loss. The only true standout is Monday morning, the 27th of July. If you’re an experienced surfer and you can wait, that glassy, 10ft session at The Reef is the one to aim for. For everyone else, it’s a long wait.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 21°C on Thu afternoon, min 18°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Mon morning, min 18°C on Mon night). Wind will be generally light.

Thu
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
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
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
9
0.4
WNW
8
0.4
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.3
WNW
8
0.6
NW
4
0.9
NNW
6
0.9
NNW
6
0.8
NW
5
0.9
NNW
7
1
NNW
7
1
NNW
7
0.9
NNW
7
1
NNW
9
0.6
N
8
0.5
N
9
0.4
WNW
10
0.4
WNW
9
Wave Graph
Metric surfscale
Energy kJ
26
24
22
13
13
13
15
16
49
56
32
83
108
111
77
151
50
39
31
27
Wind (km/h)
15
WNW
15
NNW
15
NNW
25
NNW
20
N
20
NNW
25
NNW
25
NNW
20
NNW
20
NW
20
NW
15
NW
20
NW
20
NW
15
NNW
15
NW
15
NW
15
WNW
15
WNW
15
NNW
Wind State
on
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
High Tide
5:04PM3.22m
5:33AM2.81m
5:50PM3.14m
6:18AM2.70m
6:35PM2.97m
7:03AM2.57m
7:21PM2.75m
7:50AM2.42m
8:09PM2.51m
8:40AM2.28m
9:03PM2.28m
9:38AM2.17m
10:07PM2.11m
Low Tide
11:24PM-0.03m
11:30AM0.16m
00:09AM0.08m
12:15PM0.28m
00:53AM0.25m
1:00PM0.44m
1:37AM0.45m
1:48PM0.63m
2:24AM0.65m
2:42PM0.81m
3:16AM0.83m
3:48PM0.94m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:26
6:26
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:01
9:00
9:00
9:00
8:59
8:59
8:58
 mm
Temp °C
21
20
21
20
19
20
20
19
20
20
19
21
21
19
20
20
19
20
20
18
Feels °C
21
20
19
18
17
19
18
18
19
19
19
20
20
19
20
19
19
20
20
18
  • 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
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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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