Surf Forecasts:
Reef surf forecast from 1 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, 7PM (local time) - 5ft (1.5m), 12s period, WNW swell with 575 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 with a secondary swell of 0.8m and 5s. 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 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 10s period and expected on Tuesday (Sep 08) 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 | 7PM (Mon 7th Sep) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down the surf for the next couple of weeks. We're only looking at one spot, and it's a slow start.
We've got a long, dry stretch of poor conditions. From the beginning of September right through the middle of the month, the wind is a stubborn cross-shore, and even when there's a little swell, it's messy. The combined energy is weak, mostly under 100, and the few times it climbs into the moderate range, the wind just ruins it. Don't expect much.
The first real glimmer of hope comes on Monday the 14th in the morning. We've got a clean, light breeze with a cross-offshore wind, and the swell is pumping up from the WNW at 3ft, with a solid 12-second period. The combined energy hits 286, which is solid moderate energy. This is easily the best on offer, and it's the standout. The water is sitting at 69°, which is about average for this time of year.
The crowd situation? This is a reef break, and it's exposed, so it'll draw attention. With the conditions finally lining up, expect it to be *often* busy. The swell direction is WNW, and the optimum is SW, so it's not a perfect match, but it's close enough to get some good ones.
Tuesday the 15th morning is a close second, with a similar setup—clean cross-offshore wind and 3ft of NW swell with a 12-second period—but it's a touch smaller and the energy is a bit lower. Then Wednesday the 16th morning has another clean window with 3ft of NW swell, but the period drops to 10 seconds, so it's not quite as powerful.
This is a reef break, so it's built for these longer-period swells. The shape should be much better than the beach, but it's a spot for advanced surfers only. The swell is under 5ft, but the reef itself demands respect. For the first week and a half, it's a complete write-off. The gaps are long, so don't bother checking until that Monday the 14th.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 17°C on Tue night). Winds decreasing (fresh winds from the NNW on Tue morning, light winds from the NNE by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 34°C on Sat morning, min 19°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 9 | SSW 15 | SSW 14 | NW 8 | NW 8 | NW 7 | NW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | NW 9 | WNW 9 | WNW 9 | NW 9 | WNW 9 | NNW 5 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 481 | 22 | 21 | 54 | 32 | 25 | 21 | 49 | 64 | 59 | 45 | 101 | 176 | 101 | 90 | 164 | 62 | 86 | 371 | 518 | 433 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-on | cross-off | cross | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross | cross | cross |
High Tide | 6:02PM2.80m | 6:25AM2.66m | 6:46PM2.61m | 7:12AM2.51m | 7:40PM2.39m | 8:13AM2.35m | 8:55PM2.19m | 9:37AM2.25m | 10:33PM2.12m | 11:12AM2.31m | 00:04AM2.23m | 12:30PM2.52m | 1:11AM2.43m | ||||||||
Low Tide | 11:48AM0.28m | 00:12AM0.31m | 12:31PM0.42m | 00:55AM0.50m | 1:22PM0.60m | 1:49AM0.71m | 2:31PM0.77m | 3:05AM0.89m | 4:07PM0.85m | 4:44AM0.93m | 5:46PM0.74m | 6:11AM0.79m | 6:58PM0.51m | ||||||||
 |  |  | | | | | |  |  | |  | | | | | | | | | | |
 | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 18 | 21 | 21 | 20 | 28 | 28 | 24 | 27 | 30 | 32 | 34 | 34 | 27 | 23 | 22 | 19 | 22 | 22 | 18 |
Feels °C | 16 | 16 | 15 | 20 | 19 | 19 | 26 | 25 | 22 | 25 | 27 | 30 | 31 | 32 | 28 | 23 | 22 | 19 | 21 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | NW 8 | NW 8 | NW 7 | NNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | N 11 | NNW 5 | WNW 9 | NW 9 | NW 11 | NNW 11 | WNW 12 | WNW 12 | WNW 11 |
| kJ | 23 | 22 | 21 | 54 | 32 | 25 | 105 | 49 | 64 | 59 | 45 | 101 | 9 | 32 | 90 | 164 | 288 | 242 | 371 | 518 | 433 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 15 | SSW 16 | SSW 15 | NW 9 | SSW 14 | SSW 14 | SW 13 | NW 10 | NNW 5 | SW 12 | WNW 9 | NW 10 | NNW 12 | WNW 9 | WNW 9 | NNW 10 | — | — |
| kJ | — | — | — | 23 | 24 | 22 | 21 | 20 | 19 | 7 | 25 | 23 | 6 | 101 | 53 | 243 | 62 | 26 | 116 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 15 | — | NW 10 | SSW 14 | — | — | NW 8 | SW 13 | SW 13 | N 9 | NNW 11 | NW 14 | SW 12 | SW 11 | NW 15 | WNW 8 | — | — |
| kJ | — | — | — | 23 | — | 4 | 20 | — | — | 3 | 7 | 7 | 2 | 12 | 29 | 5 | 5 | 54 | 27 | — | — |
Wind waves Height (m) Direction Period (s) | NW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 7 | NNW 6 | — | NNW 7 | NNW 6 | NNW 5 | N 4 | — | NW 9 | — | NW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 |
| kJ | 481 | 440 | 449 | 226 | 163 | 87 | — | 79 | 39 | 23 | 17 | — | 176 | — | 24 | 32 | 40 | 86 | 91 | 136 | 219 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 236 | 130 | 32 | 32 | 33 | 33 | 32 | 14 | 27 | 32 | 32 | 1 | 1 | 0 | 2 | 221 | 32 | 32 | 35 | 32 |
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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