
Surf Forecasts:
The Reef surf forecast from 25 Sep 2026:
- Best quality surf: Monday 28 Sep, 1AM (local time) - 4.5ft (1.4m), 11s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 26 Sep, 7AM (local time) - 7ft (2.1m), 14s period, NW swell with 1,712 kJ wave energy.
- Next surfable swell (1★+): Monday 28 Sep, 1AM (local time) - 4.5ft (1.4m), 11s period with NW swell.
Best Forecast Surf Conditions for The Reef this week:
The surf forecast for The Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 28) at 1AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.4m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Reef in the next 16 days are 2.1m 14s and forecast to arrive on Saturday (Sep 26) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Thursday (Oct 01) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 28th Sep) | 4.5ft (1.4m) 11s |
| Best Surf | 1AM (Mon 28th Sep) | 4.5ft (1.4m) 11s |
| Most Powerful | 7AM (Sat 26th Sep) | 7ft (2.1m) 14s |
Table - best surf conditions forecast for The Reef over the next 16 days.
Short Range ForecastMostly dry. Warm (max 23°C on Thu afternoon, min 17°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Wed morning. Warm (max 21°C on Sun afternoon, min 18°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the SSW by Wed morning). | |||||||||||||||||||
Thu 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | ||||||||||||||
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 12 | NW 12 | NW 11 | NW 16 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 10 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | WSW 8 | NW 11 |
Wave Graph | ||||||||||||||||||||
580 | 420 | 224 | 765 | 1052 | 1460 | 1191 | 813 | 865 | 778 | 479 | 391 | 748 | 855 | 628 | 483 | 293 | 183 | 541 | 445 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-off | cross | cross | cross | cross | cross | cross-off | glassy | cross-on | cross-off | cross-off | cross | cross | cross | cross | cross-off |
High Tide | 2:30AM2.63m | 2:41PM2.90m | 3:02AM2.79m | 3:13PM3.02m | 3:34AM2.91m | 3:48PM3.08m | 4:08AM2.97m | 4:23PM3.06m | 4:44AM2.97m | 5:02PM2.96m | 5:22AM2.89m | 5:44PM2.79m | ||||||||
Low Tide | 8:23PM0.32m | 8:29AM0.35m | 8:54PM0.15m | 9:02AM0.20m | 9:25PM0.04m | 9:36AM0.10m | 9:58PM-0.00m | 10:11AM0.06m | 10:32PM0.03m | 10:49AM0.09m | 11:09PM0.14m | 11:30AM0.19m | 11:50PM0.32m | |||||||
— | — | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | |
7:31 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 8 | 2 | 1 |
Temp °C | 23 | 20 | 22 | 21 | 17 | 22 | 21 | 19 | 21 | 21 | 19 | 21 | 21 | 20 | 21 | 21 | 21 | 20 | 18 | 17 |
Feels °C | 20 | 18 | 18 | 17 | 14 | 19 | 18 | 16 | 19 | 19 | 18 | 20 | 20 | 19 | 18 | 19 | 20 | 18 | 17 | 14 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 11 | NW 16 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 10 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 |
580 | 420 | 224 | 765 | 1052 | 1460 | 1191 | 813 | 865 | 778 | 479 | 391 | 748 | 855 | 628 | 483 | 293 | 183 | 165 | 445 | |
Swell 2 Height (m) Direction Period (s) | W 9 | W 8 | NW 19 | NW 10 | NW 10 | SW 13 | — | SW 12 | SW 12 | NNW 18 | NNW 16 | NNW 13 | SW 13 | SW 13 | S 5 | SSW 11 | SSW 10 | SSW 9 | — | WSW 8 |
6 | 1 | 133 | 147 | 96 | 7 | — | 6 | 6 | 33 | 98 | 120 | 7 | 6 | 17 | 12 | 10 | 9 | — | 229 | |
Swell 3 Height (m) Direction Period (s) | W 12 | SW 14 | W 8 | W 8 | SW 13 | — | — | — | — | S 12 | S 11 | NNW 11 | S 11 | — | SSW 11 | — | — | — | S 18 | WNW 14 |
3 | 8 | 1 | 1 | 7 | — | — | — | — | 3 | 3 | 24 | 2 | — | 12 | — | — | — | 6 | 18 | |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | N 4 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | N 5 | — | — | — | — | — | SSW 4 | — | SSW 4 | SSW 4 | SW 6 | WSW 8 | — |
30 | 18 | 13 | 17 | 31 | 52 | 43 | 25 | — | — | — | — | — | 12 | — | 18 | 17 | 92 | 541 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 0 | 0 | 0 | 0 | 0 | 198 | 48 | 137 | 26 | 26 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the The Reef Surf forecast
The above surf forecast table for The Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Reef can be found by selecting the local surf guide option on the grey menu. Our The 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 (The 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 The 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.
The Reef is 15 km (9 miles) from the city of Sintra. If you plan a holiday in Ericeira, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.










