
Surf Forecasts:
Reef surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 7PM (local time) - 2.5ft (0.7m), 8s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 5ft (1.5m), 12s period, WNW swell with 645 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 7PM (local time) - 2.5ft (0.7m), 8s 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 Friday (Sep 04) at 7PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.5m and 5s is also forecast. 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 1.5m 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 1.6m 12s period and expected on Thursday (Sep 10) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 7PM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 10AM (Mon 7th Sep) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. We’ve got a single reef break on the menu for the next 16 days, and I gotta be honest with you – it’s a tough stretch. The water’s sitting at 68°F at the start, which is about average for this time of year, so nothing weird going on there.
The first real chance to get wet comes on Friday the 4th. It’s not much to write home about, but we’ll take it. Morning has a small 2ft swell from the WNW with a short 8-second period, and a light cross-offshore breeze. The energy is weak (75), so you’ll be working for every wave, but it’s clean. By Friday afternoon, the wind goes glassy – totally flat surface – and the swell holds at 2ft. It’s surfable, but only just. This is a reef break for advanced surfers, and the conditions are calling it “very ordinary,” so don’t expect much.
Saturday the 5th looks a touch better in the morning. Swell bumps up to 3ft from the WNW, period stretches to 9 seconds, and the energy is moderate now (112). A light cross-offshore breeze keeps it clean. This is probably the best we’ll see in the first week. Afternoon goes downhill fast with a cross-onshore wind messing things up.
From Sunday the 6th onward, it’s a brutal run. The swell picks up to 4ft and even 5ft on Monday the 7th, with moderate to strong energy (496–725), but the wind is howling from the north at 16–19 mph, cross-shore all the way. The water is lumpy, bumpy, and just plain ugly. This is not for paddle surfing – this setup is more interesting for kite surfing than anything on a surfboard. The break is completely exposed, and we’re getting hit with a messy cross-chop. Score after score is zero. It stays like this day after day, with only a few tiny windows of glassy conditions that have almost no swell.
We finally get a break on Friday the 18th of September. Morning shows a glassy surface, a 2ft swell from the NW with a 12-second period, and moderate energy (116). It’s clean, but that’s about it. The swell is small, and consistency is “fairly consistent” here, so you might get a few. After that, the last couple of days in the window are tiny or blown out.
The standout? Honestly, nothing is a true standout. If I had to pick one, it’s Saturday morning the 5th. Swell is 3ft from the WNW, 9-second period, wind is light cross-off, energy is moderate (112). It’s the cleanest, most surfable moment in the whole forecast. The rest is a waiting game. Crowds are “often” at this reef, so if you do go, you won’t be alone. But with conditions this poor, maybe folks will stay home.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Fri afternoon, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 17°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 8 | WNW 8 | WNW 9 | WNW 9 | NW 9 | NW 13 | NW 9 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | NW 10 | NW 9 | NW 8 | NW 11 | NW 9 | WNW 8 | NNW 4 | W 7 |
Wave Graph | |||||||||||||||||||||
59 | 59 | 101 | 101 | 120 | 494 | 120 | 347 | 465 | 645 | 583 | 412 | 267 | 207 | 132 | 95 | 242 | 132 | 19 | 18 | 8 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross | cross-off | 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 | 2:31PM0.77m | 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 | ||||||||
7:07 | — | — | 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 | 28 | 31 | 30 | 29 | 26 | 23 | 24 | 23 | 19 | 21 | 21 | 18 | 20 | 20 | 20 | 21 | 21 | 18 | 23 | 22 | 19 |
Feels °C | 27 | 30 | 30 | 28 | 25 | 22 | 22 | 21 | 17 | 18 | 18 | 15 | 16 | 16 | 20 | 20 | 20 | 16 | 21 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | 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 13 | NNW 12 | NNW 11 | NNW 11 |
59 | 59 | 101 | 101 | 120 | 494 | 464 | 347 | 465 | 645 | 583 | 412 | 267 | 207 | 132 | 95 | 242 | 395 | 560 | 504 | 260 | |
Swell 2 Height (m) Direction Period (s) | NNW 5 | NNW 5 | SW 13 | NNW 5 | NW 15 | WNW 9 | NW 9 | WNW 9 | NNW 10 | NNW 10 | — | — | — | — | — | NNW 10 | NNW 16 | NW 9 | WNW 8 | WNW 7 | NNW 5 |
14 | 14 | 7 | 14 | 115 | 99 | 120 | 64 | 185 | 63 | — | — | — | — | — | 71 | 24 | 132 | 19 | 17 | 24 | |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 10 | N 12 | NW 16 | SW 12 | N 10 | SW 12 | WNW 18 | WNW 9 | — | — | — | — | — | — | — | — | — | — | W 11 | W 7 |
16 | 25 | 3 | 11 | 6 | 2 | 5 | 60 | 47 | — | — | — | — | — | — | — | — | — | — | 2 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | NNW 5 | — | NNW 6 | NNW 6 | — | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 4 | — | NNW 4 | — |
— | — | 18 | — | 12 | 10 | — | 25 | 64 | 80 | 106 | 86 | 100 | 113 | 86 | 53 | 46 | 15 | — | 18 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 32 | 0 | 32 | 32 | 32 | 221 | 32 | 32 | 400 | 32 | 35 | 400 | 32 | 32 | 400 | 32 | 34 | 199 | 34 |
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.










