
Surf Forecasts:
The Reef surf forecast from 29 Jul 2026:
- Most powerful swell: Saturday 1 Aug, 4PM (local time) - 3.5ft (1.0m), 9s period, NNW swell with 173 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 Saturday (Aug 01) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sat 1st Aug) | 3.5ft (1.0m) 9s |
Table - best surf conditions forecast for The Reef over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve been staring at the charts for The Reef for a good while now. Let’s be straight with each other: the next couple of weeks are not looking like a classic run. We’ve got a long, flat, and messy pattern setting in, and there are no real standouts to get excited about. The only break worth talking about is The Reef, and I have to say, it’s a tale of persistent disappointment until the very last few days.
It’s pretty grim right from Wednesday, July 29th. The water temperature is about what you’d expect for this time of year, nothing weird going on there, but honestly, you wouldn’t want to be in the water anyway. The wind is mostly cross or cross-on, and the swell is tiny, from the NNW, with combined wave energy that’s barely registering (weak). It’s just not doing anything. That theme runs all the way through the first week of August.
We roll through Thursday and Friday, still nothing. Swell heights are around 1.3 ft to 2.9 ft, periods are short, and the wind keeps messing with what little shape there might be. Even a small bump in energy on Saturday, August 1st, with a moderate reading and a 3.3 ft swell, is totally ruined by the messy cross-shore winds. There are no clean waves to be found.
This flat and poor quality run carries on right through until Sunday, August 9th. That’s over a week of nothing worth paddling out for. It’s a long, quiet spell.
Finally, there’s a tiny flicker of hope on Sunday morning, August 9th. The wind eases off and swings to a light ENE cross-offshore, cleaning things right up for a window. The swell is 3.6 ft from the west, with a short period. The energy is up to moderate conditions, and it’s described as clean. It’s surfable, but let's be honest, for The Reef, that swell with that short period isn’t firing. It’s more of a ‘if you’re desperate’ kind of session.
Moving into Monday, August 10th, the swell bumps up to 5.2 ft from the northwest, period still short, and the energy is solidly moderate. The morning wind is light and cross-shore, so it’s only a light cross-chop. This is the most promising look in the whole two weeks, but the forecast warns it’s marginal due to tide. For a reef break, that’s a massive caveat. At 5.2 ft, it’s starting to get a bit much for beginners, but not quite expert territory.
After that, it gets wild but ugly. By Tuesday, August 11th, the swell jumps to 7.2 ft from the NNW, period still short, packing strong energy. That’s a lot of water moving. But the wind is fresh and cross-shore, making it lumpy and tricky. For The Reef, that size is for experts only, and the wind is going to make it a real battle. The same holds into Wednesday and Thursday, with winds up to 19-22 mph. The setup is so wind-affected and chunky that it might actually be more interesting for kite surfers than for paddle surfing.
For the whole period, the best I can point you to is Monday morning, August 10th. It’s the only time we get a decent 5.2 ft swell from a good direction with light winds. For a reef break, expect the long-period energy to make the sets a bit straight, but the wind could give you some cleanish walls. Still, it’s not a standout, it’s just the least bad option in a long, poor run.
Short Range ForecastMostly dry. Warm (max 21°C on Wed morning, min 17°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 9 | NNW 8 | NNW 8 | WNW 10 | NNW 8 | WNW 9 | NNW 5 | NNW 6 | NNW 6 | W 9 | NNW 9 | W 9 | W 9 | W 10 | W 10 | W 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 8 |
Wave Graph | |||||||||||||||||||||
138 | 90 | 45 | 36 | 59 | 31 | 32 | 57 | 94 | 78 | 173 | 78 | 55 | 68 | 65 | 64 | 98 | 113 | 106 | 96 | 92 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 3:42PM2.79m | 4:01AM2.57m | 4:15PM2.87m | 4:34AM2.62m | 4:47PM2.90m | 5:06AM2.63m | 5:19PM2.89m | 5:39AM2.62m | 5:53PM2.84m | 6:15AM2.58m | 6:29PM2.74m | 6:54AM2.52m | 7:11PM2.61m | ||||||||
Low Tide | 9:26AM0.46m | 9:56PM0.36m | 9:59AM0.38m | 10:28PM0.29m | 10:31AM0.33m | 11:00PM0.26m | 11:03AM0.32m | 11:32PM0.26m | 11:37AM0.35m | 00:06AM0.30m | 12:13PM0.42m | 00:43AM0.38m | 12:54PM0.52m | 1:25AM0.50m | |||||||
6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 18 | 20 | 20 | 18 | 21 | 21 | 19 | 22 | 22 | 19 | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 |
Feels °C | 20 | 18 | 16 | 19 | 18 | 15 | 18 | 18 | 17 | 20 | 20 | 18 | 21 | 20 | 19 | 22 | 23 | 21 | 22 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | NNW 8 | NNW 8 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 10 | W 10 | W 9 | WNW 10 | WNW 9 | WNW 9 | W 11 | WNW 8 |
138 | 90 | 45 | 36 | 36 | 31 | 16 | 26 | 64 | 78 | 78 | 78 | 55 | 68 | 65 | 64 | 98 | 113 | 106 | 10 | 92 | |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 10 | WNW 10 | NNW 8 | N 10 | NW 8 | NW 8 | WNW 11 | NNW 11 | NNW 10 | — | NNW 8 | NNW 8 | NNW 7 | NNW 7 | N 7 | N 8 | N 8 | NNW 8 | NNW 10 | NNW 9 |
23 | 21 | 38 | 26 | 8 | 15 | 9 | 24 | 12 | 20 | — | 23 | 12 | 11 | 10 | 4 | 5 | 5 | 6 | 9 | 27 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 8 | N 10 | N 10 | — | N 9 | W 12 | NW 8 | N 9 | NNW 8 | — | — | — | — | S 15 | — | S 14 | N 8 | S 13 | NNW 8 | SW 12 |
7 | 6 | 2 | 8 | — | 2 | 3 | 3 | 2 | 7 | — | — | — | — | 4 | — | 4 | 1 | 3 | 6 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | NNW 4 | NNW 4 | NNW 8 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 9 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | NW 2 | — | — | WNW 8 | — |
— | — | 7 | 6 | 59 | 17 | 32 | 57 | 94 | 59 | 173 | 31 | 21 | 21 | 8 | 4 | 1 | — | — | 96 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 418 | 27 | 27 | 552 | 275 | 132 | 435 | 26 | 26 | 320 | 27 | 27 | 411 | 26 | 27 | 48 | 26 | 26 | 377 | 26 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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.










