Surf Forecasts:
Reef surf forecast from 25 Aug 2026:
- Best quality surf: Thursday 27 Aug, 10PM (local time) - 7ft (2.2m), 8s period, WNW swell with cross-onshore winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 8ft (2.5m), 11s period, WNW swell with 1,570 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10AM (local time) - 4.5ft (1.3m), 7s period with WNW 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 Tuesday (Aug 25) at 10AM. The primary swell is predicted to be 1.3m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Reef in the next 16 days are 2.5m 11s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 11s period and expected on Tuesday (Sep 01) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 25th Aug) | 4.5ft (1.3m) 7s |
| Best Surf | 10PM (Thu 27th Aug) | 7ft (2.2m) 8s |
| Most Powerful | 10AM (Fri 28th Aug) | 8ft (2.5m) 11s |
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 on the cards for our local spot.
Right off the bat, it's a pretty bleak start to the 16-day window. We're looking at several days of slop. The first glimmer of anything worthwhile doesn't appear until the end of the first week. The swell energy is weak, with a combined energy of just 172, and the 7-second period is just wind chop, making for really ordinary conditions. The water temperature is about average for this time of year, so nothing unusual there.
The real standout, and the only session worth driving for, is that Friday morning, the 28th of August. The wind is glassy out of the NNE, giving us a clean cross-off breeze. The swell is a solid 8 ft out of the WNW, and with an 11-second period, it's a proper groundswell. The combined energy is a serious 1570, so there's a lot of power in the water. The swell is a tad big for the less experienced, but for the advanced crew, it's going to be pumping. The wind and tide are favorable, but the swell is predicted to be too big for the break, so it's a real expert-only session. Crowds are often a problem here, so expect a few others out.
After that, it's a mixed bag. Saturday the 29th has a clean 5 ft, but the wind is onshore, and the energy drops off quickly. Then we get into a long, dry spell of poor conditions. There's a brief tease on Monday the 7th of September with a 5 ft, 21-second period (very long period) groundswell, but it's listed as marginal and the wind is cross-shore. The combined energy is a massive 2137, but the conditions are just not right.
The final big call is on Tuesday morning, the 8th of September. The swell is a massive 12 ft out of the NW with a 14-second period, and the combined energy is a whopping 5085. The wind is cross-shore again, and the forecast says it's too big for the break. This is a solid day for experts only, and even then, it's going to be a wild ride. The conditions are messy, so it's a kite-surfing kind of day. The rest of the period is a write-off.
So, to sum it up: the only real standout is that Friday morning, the 28th of August. It's the best on offer. Everything else is either small, choppy, or way too big and messy. Keep your eyes on the forecasts for the 8th, but don't hold your breath.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Wed morning. Warm (max 22°C on Tue morning, min 17°C on Wed morning). Winds increasing (calm on Tue morning, fresh winds from the W by Thu morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 17°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | WNW 7 | WNW 7 | WNW 6 | WSW 5 | W 7 | W 8 | W 7 | W 8 | WNW 9 | WNW 11 | WNW 11 | NW 10 | NW 9 | S 10 | NNW 4 | NW 8 | NW 8 | NW 8 | NW 9 | SW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 166 | 114 | 62 | 64 | 263 | 364 | 475 | 558 | 741 | 1570 | 1113 | 566 | 380 | 2 | 19 | 201 | 149 | 167 | 373 | 11 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross | on | cross-on | on | on | cross-on | cross-off | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 2:08PM2.54m | 2:30AM2.42m | 2:43PM2.72m | 3:03AM2.57m | 3:15PM2.87m | 3:34AM2.69m | 3:46PM2.98m | 4:05AM2.78m | 4:17PM3.03m | 4:37AM2.82m | 4:50PM3.02m | 5:10AM2.82m | 5:24PM2.94m | ||||||||
Low Tide | 7:53AM0.72m | 8:24PM0.55m | 8:28AM0.54m | 8:57PM0.38m | 9:01AM0.39m | 9:28PM0.24m | 9:32AM0.26m | 9:59PM0.14m | 10:04AM0.19m | 10:29PM0.09m | 10:37AM0.16m | 11:01PM0.10m | 11:11AM0.19m | 11:35PM0.18m | |||||||
 |  |  |  | |  | |  |  | | | | | | | | | | | | | |
 | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:09 | — |
mm | — | — | — | 10 | — | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 18 | 21 | 20 | 18 | 22 | 22 | 20 | 20 | 20 | 17 |
Feels °C | 22 | 21 | 20 | 18 | 18 | 19 | 15 | 15 | 18 | 18 | 17 | 15 | 18 | 17 | 16 | 21 | 20 | 18 | 16 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 7 | WNW 6 | NNW 6 | NNW 6 | W 8 | SW 11 | S 11 | WNW 9 | WNW 11 | WNW 11 | NW 10 | NW 9 | S 10 | NNW 8 | NW 8 | NW 8 | NW 8 | SW 18 | SW 17 | SW 16 |
| kJ | 166 | 114 | 62 | 15 | 3 | 364 | 5 | 2 | 741 | 1570 | 1113 | 566 | 380 | 2 | 106 | 201 | 149 | 167 | 12 | 11 | 10 |
Swell 2 Height (m) Direction Period (s) | N 7 | SW 12 | NW 11 | NW 10 | SW 11 | SW 11 | — | NW 13 | NW 10 | — | — | — | S 10 | — | — | W 13 | NW 12 | WNW 10 | S 10 | S 9 | S 9 |
| kJ | 1 | 6 | 5 | 4 | 5 | 5 | — | 6 | 16 | — | — | — | 2 | — | — | 3 | 6 | 41 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 12 | W 10 | W 10 | W 9 | — | — | — | — | — | — | — | — | — | — | — | S 12 | S 11 | S 10 | — | SW 16 | — |
| kJ | 6 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 2 | — | 11 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WSW 5 | W 7 | — | W 7 | W 8 | — | — | — | — | — | NW 8 | NNW 4 | — | NNW 3 | — | NW 9 | NW 10 | NNW 10 |
| kJ | — | — | — | 64 | 263 | — | 475 | 558 | — | — | — | — | — | 288 | 19 | — | 3 | — | 373 | 703 | 873 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 43 | 46 | 484 | 413 | 43 | 285 | 221 | 32 | 0 | 35 | 32 | 32 | 405 | 100 | 32 | 400 | 32 | 124 | 400 | 130 |
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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