Surf Forecasts:
Reef surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 13 Sep, 10AM (local time) - 4.5ft (1.3m), 13s period, NW swell with glassy winds.
- Most powerful swell: Sunday 13 Sep, 10PM (local time) - 5ft (1.6m), 14s period, NW swell with 911 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 4AM (local time) - 2.5ft (0.8m), 14s 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 13) at 4AM. The primary swell is predicted to be 0.8m and 14s 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 1.6m 14s and forecast to arrive on Sunday (Sep 13) 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 2.1m 8s period and expected on Wednesday (Sep 09) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 13th Sep) | 2.5ft (0.8m) 14s |
| Best Surf | 10AM (Sun 13th Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 10PM (Sun 13th Sep) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line.
Honestly, for the next couple of weeks, it’s a pretty grim picture. We’ve got a long stretch of poor conditions ahead, with nothing really worth paddling out for until the second week. The water is sitting at 68°, which is about average for this time of year at Reef, so no surprises there.
The first sign of life doesn’t show up until Sunday the 13th of September. That morning, we get a bit of a pulse: a 4ft NW groundswell, with a period of 13 seconds, pushing in moderate energy (631). The wind is glassy – perfect conditions – and the forecast says expect very good surf. That’s the standout of the entire run. It’s a reef break, so that long-period swell from the NW will wrap in nicely, giving some proper shape. It’s advanced and fairly consistent, but keep in mind crowds are often here. This is the one to circle.
After that, it falls apart again. The following Monday shows a little energy (5ft NW, 12 seconds, 513 energy) but it’s cross-shore wind and the surf is described as poor. The rest of the week is a mix of tiny, weak, or messy wind conditions. There’s a moment on Thursday the 17th morning with a glassy 2ft WNW swell, but it’s barely enough to get excited about.
Then, looking into the second week, we get a glimmer on Monday the 21st of September. A morning window with 4ft NW groundswell, period around 9 seconds (266 energy), and a clean offshore wind from the ENE. The forecast says expect good surf conditions. That’s a promising one, but it’s a long way out, so confidence is lower. The afternoon turns onshore, so get on it early if it holds.
Overall, it’s a bleak start, with a single Sunday morning that’s worth your time, and maybe a Monday in the distant future. The rest is a write-off. Keep an eye on that Sunday session.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 17°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sat morning, min 17°C on Wed night). Winds decreasing (fresh winds from the N on Wed afternoon, calm by Sat morning). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | NW 9 | NW 9 | NNW 7 | NW 12 | W 13 | W 8 | W 7 | W 10 | W 7 | W 7 | WNW 10 | WNW 10 | WNW 9 | NW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 347 | 660 | 880 | 713 | 444 | 302 | 194 | 148 | 0 | 6 | 3 | 12 | 9 | 2 | 4 | 4 | 10 | 54 | 49 | 174 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross-off |
High Tide | 00:04AM2.23m | 12:30PM2.52m | 1:11AM2.43m | 1:28PM2.77m | 2:02AM2.63m | 2:16PM3.00m | 2:45AM2.80m | 2:59PM3.15m | 3:25AM2.92m | 3:38PM3.21m | 4:01AM2.96m | 4:15PM3.17m | ||||||||
Low Tide | 5:46PM0.74m | 6:11AM0.79m | 6:58PM0.51m | 7:13AM0.57m | 7:52PM0.27m | 8:03AM0.35m | 8:37PM0.08m | 8:45AM0.17m | 9:16PM-0.04m | 9:25AM0.07m | 9:53PM-0.07m | 10:02AM0.03m | 10:27PM-0.02m | |||||||
 |  | |  | | | |  | | | | | | | | | | | | | |
 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — |
 | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 18 | 22 | 22 | 19 | 20 | 20 | 20 | 19 | 19 | 18 | 22 | 21 | 18 | 25 | 24 | 25 | 30 | 27 | 27 |
Feels °C | 20 | 16 | 20 | 20 | 17 | 17 | 18 | 21 | 14 | 14 | 13 | 18 | 16 | 15 | 22 | 21 | 22 | 27 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | NW 9 | NW 9 | N 14 | NW 12 | NNW 12 | NNW 8 | W 7 | NNW 10 | NNW 8 | N 10 | N 10 | NNW 7 | WNW 9 | NW 15 |
| kJ | 347 | 660 | 880 | 713 | 444 | 302 | 194 | 148 | 4 | 6 | 85 | 512 | 9 | 586 | 303 | 8 | 16 | 99 | 49 | 174 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | NNW 10 | NNW 10 | — | NNW 9 | — | — | — | — | N 15 | NW 10 | NNW 11 | — | W 10 | W 7 | W 7 | WNW 10 | WNW 10 | NNW 16 | WNW 9 |
| kJ | 64 | 182 | 81 | — | 15 | — | — | — | — | 4 | 26 | 225 | — | 2 | 4 | 4 | 10 | 54 | 26 | 46 |
Swell 3 Height (m) Direction Period (s) | WNW 18 | WNW 9 | — | — | — | — | — | — | — | — | W 13 | W 8 | — | — | W 9 | W 8 | W 8 | N 9 | NW 12 | NW 11 |
| kJ | 61 | 65 | — | — | — | — | — | — | — | — | 3 | 12 | — | — | 2 | 1 | 5 | 6 | 6 | 30 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 5 | NNW 5 | NNW 4 | NNW 5 | NNW 5 | NNW 4 | — | NNW 7 | NNW 8 | NNW 8 | — | NNW 11 | — | — | NNW 8 | NNW 6 | — | NNW 7 | NNW 8 |
| kJ | 16 | 39 | 38 | 43 | 28 | 36 | 18 | — | 362 | 471 | 564 | — | 822 | — | — | 250 | 113 | — | 102 | 147 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 400 | 32 | 32 | 388 | 32 | 32 | 35 | 130 | 265 | 386 | 130 | 34 | 222 | 34 | 1 | 221 | 34 | 1 | 130 | 32 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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