
Surf Forecasts:
Reef surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 4AM (local time) - 2.5ft (0.8m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5ft (1.6m), 12s period, WNW swell with 742 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 4AM (local time) - 2.5ft (0.8m), 9s 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 Saturday (Sep 05) at 4AM. The primary swell is predicted to be 0.8m and 9s 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 12s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 12s period and expected on Thursday (Sep 10) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 4AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Most Powerful | 10AM (Mon 7th Sep) | 5ft (1.6m) 12s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Right, Rusty here. Let’s have a proper look at what’s coming for this spot. Gotta say, for the next couple of weeks, it’s a bit of a waiting game. The pattern is mostly small, messy swell and tricky winds, but there’s a decent little window towards the end that might just save the stretch.
There’s a rough patch from now through to the middle of the month. We’ve got a couple of days of weak, short-period WNW swell at first, but the wind is all wrong — mostly cross or cross-on, and the water temp is sitting at 68°F, which is pretty normal for this time of year. Nothing doing. Saturday morning, the 5th, is the first sniff of something. We get a glassy clean window, with a tiny 3ft swell from the WNW, but the combined energy is still weak (112). It’s surfable, but you wouldn’t paddle out for it unless you were desperate.
From the 6th into the 10th, it’s a real low point. Swell stays small to basically flat, and we get a string of “poor surf conditions” with strong cross-shore winds. The 7th sees some bigger numbers — 5ft WNW on Monday — but it’s blown out by 30 km/h crosswind. That’s chunky for a beginner (over 5ft), and no good for anyone with that wind. Energy is moderate (804) but wasted.
The 13th and 14th bring a bit more life with NW swells around 2–3ft, but still crushed by fresh to strong cross-breezes. The 15th is interesting but frustrating: we get a long-period NW groundswell — period of 16 seconds — hitting 4ft on Tuesday afternoon, with strong energy (576), but that 40 km/h crosswind just tears it apart. Long-period swells like that usually want a point or reef setup to really shine, but it’s just not clean enough here.
Now, the standout. Head straight for Thursday the 17th in the morning. Reef (this spot) is where it’s at. We get a clean, cross-offshore breeze from the NE at 15 km/h, with a 3ft NW swell (period 11 seconds) and moderate energy (244). The direction is straight from the optimum SW direction, so it’s hitting right. The wind is light and clean, the swell is solid enough for a good paddle, and crowds are often a thing here, but with waves this shapeable, it’s worth sharing. That’s the best on offer — not a monster, but clean, rideable, and fun. Friday morning the 18th also looks clean with a smaller 2ft NW, but it’s weaker.
So if you can wait, the 17th is the call. Before that, you’re looking at a lot of flat, windy days. It’s a dry spell, but not unusual for the area. Forecasts can flip, so keep an eye out.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Fri afternoon, min 17°C on Sun night). Winds increasing (calm on Sat morning, fresh winds from the N by Mon morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu morning, min 17°C on Mon night). Mainly fresh winds. | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 8 | WNW 9 | WNW 9 | NW 9 | NW 13 | WNW 9 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 8 | NW 11 | NW 12 | W 8 | W 7 | W 7 |
Wave Graph | ||||||||||||||||||||
59 | 101 | 101 | 120 | 501 | 73 | 347 | 465 | 742 | 671 | 486 | 308 | 211 | 132 | 80 | 258 | 301 | 18 | 16 | 9 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross |
High Tide | 8:55PM2.19m | 9:37AM2.25m | 10:33PM2.12m | 11:12AM2.31m | 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 | |||||||
Low Tide | 3:05AM0.89m | 4:07PM0.85m | 4:44AM0.93m | 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 | ||||||||
— | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | |
8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 33 | 29 | 28 | 26 | 21 | 23 | 22 | 18 | 21 | 21 | 18 | 20 | 20 | 20 | 20 | 20 | 18 | 22 | 21 | 18 |
Feels °C | 30 | 28 | 28 | 25 | 21 | 21 | 20 | 16 | 18 | 19 | 15 | 17 | 17 | 20 | 19 | 18 | 17 | 20 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 9 | WNW 9 | NW 9 | NW 13 | NNW 12 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 8 | NW 11 | NNW 12 | NNW 12 | NNW 11 | NNW 11 |
59 | 101 | 101 | 120 | 501 | 464 | 347 | 465 | 742 | 671 | 486 | 308 | 211 | 132 | 80 | 258 | 691 | 748 | 560 | 427 | |
Swell 2 Height (m) Direction Period (s) | NNW 5 | SW 13 | NNW 5 | NW 15 | NW 9 | WNW 9 | WNW 9 | NNW 10 | NNW 10 | — | — | — | — | — | NNW 11 | NNW 14 | NW 12 | W 8 | W 7 | W 7 |
14 | 7 | 14 | 115 | 129 | 73 | 64 | 182 | 81 | — | — | — | — | — | 107 | 236 | 301 | 18 | 16 | 9 | |
Swell 3 Height (m) Direction Period (s) | NW 10 | N 12 | NW 16 | SW 12 | N 10 | SW 12 | WNW 18 | WNW 9 | — | — | — | — | — | — | NNW 16 | — | — | — | — | — |
25 | 3 | 11 | 6 | 2 | 5 | 60 | 47 | — | — | — | — | — | — | 25 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNW 5 | — | NNW 5 | — | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 5 | N 4 | N 4 | NNW 4 | — | — | — |
— | 20 | — | 15 | — | 5 | 17 | 56 | 62 | 84 | 62 | 83 | 69 | 48 | 20 | 15 | 19 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 32 | 32 | 0 | 32 | 32 | 32 | 221 | 32 | 32 | 386 | 32 | 124 | 305 | 32 | 32 | 400 | 32 | 34 | 222 | 34 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










