Surf Forecasts:
Reef surf forecast from 8 Sep 2026:
- Best quality surf: Monday 14 Sep, 1AM (local time) - 4.5ft (1.4m), 12s period, NW swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 10PM (local time) - 5ft (1.5m), 12s period, NW swell with 625 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 3ft (0.9m), 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 7AM. The primary swell is predicted to be 0.9m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Reef in the next 16 days are 1.5m 12s 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 2.0m 8s period and expected on Wednesday (Sep 09) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 13th Sep) | 3ft (0.9m) 14s |
| Best Surf | 1AM (Mon 14th Sep) | 4.5ft (1.4m) 12s |
| Most Powerful | 10PM (Sun 13th Sep) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down the Reef in feet and degrees.
We’ve got a long, dry spell before anything good shows up. From Tuesday, September 8th through Saturday, September 12th, it’s a bust. Swell heights are under 2ft, the combined energy is weak, and the wind is a cross or cross-on breeze, making it choppy and ugly. Not a single wave worth changing your plans for.
Then, on Sunday, September 13th, the lights come on. The morning delivers a clean 4ft to 5ft NW groundswell with a 13-second period. The combined energy is a solid 583. The wind is glassy, zero knots. This is the real deal. The Reef is an advanced, exposed reef break, and that long-period groundswell is going to produce powerful, well-shaped waves. The water is 68°, which is about average for this time of year. If you’re an experienced surfer, this is the morning to be out. The afternoon gets a bit onshore, so don’t sleep in.
After that, it’s back to the doldrums. Monday the 14th and Tuesday the 15th are weak, small, and messy. Wednesday the 16th and Thursday the 17th see a bump to 3ft to 4ft, with combined energy in the 200s, but the wind is cross or cross-on, keeping it lumpy and uninviting.
Friday the 18th through Tuesday the 22nd is another flat, weak stretch. Swell is under 3ft, winds are onshore or cross-on, and the energy is low. It’s a quiet spell.
Now, look to Wednesday, September 23rd. The morning offers a 2ft to 2ft NW swell, but the period is a massive 19 seconds. That’s very long-period groundswell. The combined energy is a moderate 368, and the wind is light cross-offshore, so it’s clean. The Reef will handle that long period with great shape. The afternoon builds to 4ft to 5ft with a 17-second period, but the wind turns cross-on. The morning is the window to aim for, but it’s a long way out, so stay hopeful.
Rusty out.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 17°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Sun morning, min 19°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 9 | NW 9 | W 13 | NNW 8 | NNW 8 | WNW 7 | WNW 7 | W 7 | W 7 | W 7 | NNW 6 | WNW 10 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 12 | NW 11 | WNW 9 | NW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 241 | 148 | 4 | 0 | 0 | 10 | 11 | 9 | 4 | 4 | 61 | 55 | 68 | 64 | 437 | 520 | 561 | 380 | 52 | 148 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross-off | cross-on | cross-off | glassy | cross-on | cross-off | cross-off | on | glassy |
High Tide | 2:02AM2.63m | 2:16PM3.00m | 2:45AM2.80m | 2:59PM3.15m | 3:25AM2.92m | 3:38PM3.21m | 4:01AM2.96m | 4:15PM3.17m | 4:36AM2.94m | 4:51PM3.04m | 5:10AM2.86m | 5:26PM2.85m | ||||||||
Low Tide | 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 | 10:38AM0.08m | 11:00PM0.11m | 11:13AM0.19m | 11:32PM0.29m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 19 | 18 | 21 | 21 | 18 | 22 | 21 | 20 | 27 | 26 | 27 | 31 | 29 | 29 | 30 | 28 | 25 |
Feels °C | 19 | 21 | 14 | 14 | 13 | 17 | 17 | 14 | 20 | 18 | 20 | 26 | 25 | 24 | 29 | 25 | 26 | 27 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 9 | N 13 | N 15 | NNW 12 | NNW 8 | WNW 7 | NNW 10 | NNW 7 | NNW 9 | NNW 10 | NNW 6 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 12 | NW 11 | NNW 11 | NW 10 |
| kJ | 241 | 148 | 4 | 4 | 85 | 355 | 11 | 218 | 186 | 68 | 18 | 96 | 68 | 64 | 437 | 520 | 561 | 380 | 207 | 148 |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | N 15 | NW 10 | NNW 11 | W 11 | W 7 | NNW 10 | W 7 | WNW 10 | WNW 10 | NW 18 | NNW 15 | NNW 7 | NNW 6 | N 7 | WNW 9 | WNW 9 | WNW 8 |
| kJ | — | — | 4 | 4 | 25 | 183 | 2 | 9 | 128 | 4 | 10 | 55 | 12 | 146 | 48 | 21 | 15 | 26 | 52 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WNW 7 | — | W 10 | W 7 | W 8 | W 8 | SW 13 | S 12 | NW 11 | W 9 | S 12 | S 6 | S 11 | SSW 4 | NNW 5 |
| kJ | — | — | — | — | — | 10 | — | 2 | 4 | 1 | 5 | 7 | 3 | 32 | 40 | 3 | 3 | 2 | 2 | 5 |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NNW 8 | NNW 8 | NNW 8 | — | NNW 11 | NNW 7 | — | NNW 7 | NNW 6 | — | NNW 7 | NNW 7 | — | — | — | S 5 | — | — |
| kJ | 16 | — | 307 | 419 | 471 | — | 759 | 195 | — | 121 | 61 | — | 82 | 91 | — | — | — | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 236 | 130 | 265 | 400 | 130 | 32 | 443 | 34 | 35 | 222 | 4 | 0 | 32 | 32 | 0 | 32 | 0 | 0 | 32 | 0 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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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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