Surf Forecasts:
Reef surf forecast from 14 Sep 2026:
- Best quality surf: Monday 21 Sep, 1PM (local time) - 6ft (1.8m), 13s period, NW swell with glassy winds.
- Most powerful swell: Monday 21 Sep, 1PM (local time) - 6ft (1.8m), 13s period, NW swell with 1,102 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 10PM (local time) - 4.5ft (1.4m), 11s 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 20) at 10PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.4m and 16s. 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 1.8m 13s and forecast to arrive on Monday (Sep 21) at 1PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Wednesday (Sep 16) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 20th Sep) | 4.5ft (1.4m) 11s |
| Best Surf | 1PM (Mon 21st Sep) | 6ft (1.8m) 13s |
| Most Powerful | 1PM (Mon 21st Sep) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Grab a coffee and listen up, because the next couple of weeks are a bit of a mixed bag. We’ve got a big gap of flatness before the ocean finally wakes up.
Right off the bat, Monday morning the 14th here at Reef gives us a little taste. We’re looking at a 3ft swell out of the NW, with a solid 11-second period. The wind is glassy, making for clean conditions. The water is sitting at 65°, which is a good 4° colder than usual for this time of year, so you’ll want a slightly thicker suit. The combined energy is moderate at 306. It’s a brief window though, because the afternoon goes cross-on and choppy.
Then we hit a long dry spell. From Monday afternoon the 14th all the way through to the morning of Sunday the 21st, it’s pretty much a write-off. We’ve got tiny waves, short periods, and junk wind. A few mornings look clean, but with swell energy dropping into single digits or low two-digit figures (43, 18, 9, 8), there's just nothing to ride. You’d be better off waxing your board at home.
The real standout arrives on Monday, September 21st, in the morning. This is the day to circle on your calendar. Reef lights up with a 4ft groundswell from the NW, with a 14-second period, and it is glassy—dead calm offshore wind. The combined energy is a solid 816 (moderate to strong), and they’re calling for very good surf conditions. This one has a proper long-period groundswell pushing in, so expect well-shaped waves and long lulls between sets. It’s an expert break anyway, so that suits.
Tuesday the 22nd morning keeps the run going with another 4ft NW swell, 12-second period, and offshore wind. The energy is 520, and it will be clean again. But the stand-out prize goes to Friday morning, September 25th. That session is just about perfect for the advanced crew. A 6ft WNW swell with a 14-second period, glassy conditions, and massive combined energy of 1130. This is strong wave energy, and for the experienced surfer, it will be absolutely pumping. The afternoon gets blown out and onshore, so you need to be on it early.
There are a few other clean mornings to stretch your arms—like Saturday the 26th (4ft, glassy, energy 400) and Sunday the 27th (3ft, clean, energy 206)—but the blue-ribbon sessions are undoubtedly the 21st and the 25th.
Keep the faith, it gets good.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Mon morning, min 17°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the N by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sat morning, min 17°C on Thu night). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the WNW by Sat morning). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NW 11 | NW 11 | WNW 8 | WNW 8 | NW 5 | S 13 | S 13 | SW 13 | S 12 | SW 18 | S 16 | SW 16 | SW 15 | NW 14 | SW 14 | SW 14 | SW 13 | SW 13 | S 13 | NW 18 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 242 | 169 | 40 | 22 | 51 | 3 | 3 | 6 | 3 | 12 | 5 | 10 | 9 | 245 | 8 | 8 | 7 | 7 | 3 | 13 | 304 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | off | cross-on | cross-off | cross-off | on | cross-off |
High Tide | 5:26PM2.85m | 5:44AM2.73m | 6:02PM2.62m | 6:18AM2.55m | 6:39PM2.37m | 6:56AM2.36m | 7:22PM2.13m | 7:44AM2.16m | 8:22PM1.92m | 8:58AM2.00m | 10:00PM1.81m | 10:42AM1.99m | 11:40PM1.88m | ||||||||
Low Tide | 11:13AM0.19m | 11:32PM0.29m | 11:48AM0.36m | 00:04AM0.50m | 12:25PM0.57m | 00:38AM0.73m | 1:07PM0.80m | 1:19AM0.95m | 2:02PM1.01m | 2:18AM1.13m | 3:32PM1.14m | 4:00AM1.22m | 5:23PM1.11m | ||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | |
 | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — |
 | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 21 | 21 | 20 | 18 | 18 | 19 | 19 | 21 | 20 | 18 | 22 | 23 | 22 | 28 | 25 | 24 | 28 | 27 | 26 |
Feels °C | 25 | 24 | 21 | 20 | 17 | 13 | 11 | 12 | 13 | 15 | 14 | 13 | 17 | 19 | 18 | 25 | 22 | 22 | 26 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 10 | NNW 10 | NW 11 | S 13 | S 13 | SW 13 | S 12 | NNW 10 | S 12 | SW 16 | NNW 9 | NW 14 | NNW 8 | NNW 14 | NNW 13 | NNW 12 | NNW 12 | NW 11 | NW 10 |
| kJ | 242 | 169 | 102 | 63 | 33 | 3 | 3 | 6 | 3 | 1591 | 3 | 10 | 926 | 245 | 560 | 2378 | 1497 | 878 | 743 | 485 | 304 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | NW 9 | WNW 8 | WNW 8 | WNW 8 | S 13 | — | — | — | SW 18 | S 16 | — | NNW 16 | SW 14 | NW 15 | SW 14 | SW 13 | SW 13 | S 13 | NW 18 | NW 16 |
| kJ | 64 | 83 | 40 | 22 | 22 | 3 | — | — | — | 12 | 5 | — | 24 | 8 | 1663 | 8 | 7 | 7 | 3 | 13 | 251 |
Swell 3 Height (m) Direction Period (s) | NNW 7 | S 11 | S 11 | WNW 12 | S 10 | — | — | — | — | S 18 | — | — | SW 15 | S 11 | SW 14 | — | — | — | — | S 13 | S 12 |
| kJ | 17 | 2 | 2 | 15 | 2 | — | — | — | — | 6 | — | — | 9 | 2 | 8 | — | — | — | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | NNW 5 | NNW 4 | NW 5 | NNW 8 | NNW 9 | NNW 9 | NNW 10 | — | NNW 9 | NNW 9 | — | NNW 8 | — | — | — | — | — | — | — |
| kJ | — | — | 10 | 6 | 51 | 620 | 1494 | 1528 | 2345 | — | 1247 | 1411 | — | 588 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 32 | 32 | 32 | 984 | 236 | 596 | 669 | 124 | 34 | 510 | 130 | 34 | 32 | 32 | 1 | 188 | 1 | 1 | 43 | 19 |
Best forecast wave conditions in Ericeira | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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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