
Surf Forecasts:
The Reef surf forecast from 7 Aug 2026:
- Most powerful swell: Tuesday 11 Aug, 10PM (local time) - 3.5ft (1.0m), 11s period, NNW swell with 234 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 11s and forecast to arrive on Tuesday (Aug 11) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Friday (Aug 07) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Tue 11th Aug) | 3.5ft (1.0m) 11s |
Table - best surf conditions forecast for The Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for The Reef.
First up, I gotta be straight with you – the next week and a half is looking pretty average. We’ve got a long stretch of what I’d call “character-building” conditions. From Friday the 7th right through to the end of the 16-day window, it’s basically all poor surf. The wind is a constant issue, mostly coming from the north-northwest to north, which is the wrong direction for this spot. It’s producing a cross-shore or cross-onshore wind, and with that comes chop and bump. The combined swell energy is reading between 51 and 307 for the first week, so that’s weak to moderate energy, but it’s just not coming together with the clean conditions we need.
The first real standout for a clean wave doesn’t appear until late in the game. We’re looking at Monday the 17th of August when the swell jumps up. The combined energy hits 884 (moderate to strong), with a solid 8ft swell from the NNW. The period is 8 seconds, which is a short-period wind swell, but it’s got size. However, the wind is still cross-onshore, so it’s going to be rough and choppy. That’s a big, juicy wave but it’s really only for the experienced crew – anything over 8ft is expert territory, and with that wind, it’s going to be a battle.
The best chance for a decent session, and the one I’d lock in, is a bit earlier on the 14th of August, Friday morning. The swell is still coming from the WNW at 0.9m, which is about 3ft, with a period of 9 seconds and a combined energy of 271 (moderate). The wind is a cross-shore from the north at 12 mph, so it’s not perfect, but it’s the least bad of the bunch. The wave height is manageable for a lot of surfers, and the longer period for that day gives it a bit more push. The crowd factor is “often” at The Reef, so you might have some company, but it’s the best compromise we’ve got.
Don’t get your hopes up for the rest of it. The pattern is pretty grim all the way through, with poor surf conditions every single day. There’s no real hidden gem in the second week – the swell gets bigger but the wind stays messy. It’s one of those stretches where the setup looks more interesting for kite surfing than paddle surfing, to be honest.
So, my pick? The Friday morning of the 14th of August. Don’t expect a classic, but it’s the best we’re going to get.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sat morning, min 19°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon morning, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 9 | NNW 8 | N 8 | W 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | NNW 8 | NW 8 | NW 7 | NW 7 | NW 12 | WNW 10 | WNW 9 | WNW 9 | W 9 | W 9 | WNW 8 | NNW 6 |
Wave Graph | |||||||||||||||||||||
99 | 126 | 94 | 46 | 31 | 49 | 65 | 117 | 104 | 117 | 128 | 122 | 63 | 37 | 77 | 108 | 135 | 127 | 96 | 94 | 80 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross |
High Tide | 9:51AM2.28m | 10:33PM2.23m | 11:16AM2.33m | 00:00AM2.29m | 12:33PM2.50m | 1:13AM2.45m | 1:37PM2.74m | 2:11AM2.63m | 2:30PM2.98m | 3:01AM2.79m | 3:17PM3.16m | 3:45AM2.89m | 4:01PM3.26m | ||||||||
Low Tide | 4:09PM0.82m | 4:48AM0.82m | 5:40PM0.74m | 6:12AM0.73m | 6:58PM0.54m | 7:19AM0.55m | 7:59PM0.31m | 8:14AM0.36m | 8:50PM0.09m | 9:01AM0.19m | 9:36PM-0.05m | 9:45AM0.08m | 10:18PM-0.10m | ||||||||
6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | |
— | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 23 | 23 | 21 | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 22 | 19 | 22 | 22 | 20 | 23 | 22 | 19 |
Feels °C | 21 | 20 | 19 | 23 | 24 | 22 | 23 | 22 | 19 | 20 | 20 | 19 | 19 | 20 | 17 | 20 | 20 | 18 | 22 | 20 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | W 9 | NNW 8 | N 8 | W 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | W 7 | WNW 11 | W 6 | NW 12 | NW 12 | WNW 10 | WNW 9 | WNW 9 | W 9 | W 9 | WNW 8 | WNW 9 |
99 | 42 | 94 | 46 | 31 | 49 | 65 | 117 | 104 | 22 | 12 | 7 | 38 | 36 | 77 | 108 | 135 | 127 | 96 | 94 | 80 | |
Swell 2 Height (m) Direction Period (s) | W 9 | S 12 | W 9 | WNW 9 | NNW 8 | N 7 | NNW 11 | NNW 10 | NNW 9 | S 12 | S 12 | WNW 10 | WNW 10 | WNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NW 11 |
43 | 3 | 40 | 26 | 20 | 9 | 47 | 40 | 59 | 3 | 3 | 10 | 19 | 18 | 44 | 56 | 55 | 35 | 29 | 15 | 72 | |
Swell 3 Height (m) Direction Period (s) | S 13 | — | S 12 | S 12 | S 12 | NNW 12 | N 7 | N 7 | S 11 | — | — | NNW 10 | NNW 9 | NNW 8 | NW 8 | — | W 11 | — | — | — | — |
3 | — | 3 | 3 | 3 | 14 | 4 | 1 | 2 | — | — | 10 | 8 | 13 | 15 | — | 2 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 9 | — | — | — | N 3 | — | — | N 7 | NNW 8 | NW 8 | NW 7 | NW 7 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 |
20 | 126 | — | — | — | 1 | — | — | 1 | 117 | 128 | 122 | 63 | 37 | 24 | 22 | 24 | 40 | 39 | 61 | 77 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 119 | 605 | 29 | 29 | 411 | 27 | 27 | 382 | 26 | 26 | 449 | 125 | 119 | 406 | 26 | 26 | 215 | 26 | 26 | 215 | 26 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











