Surf Forecasts:
Foz do Arelho surf forecast from 14 Sep 2026:
- Best quality surf: Saturday 19 Sep, 10AM (local time) - 6.5ft (2.0m), 14s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 1AM (local time) - 8ft (2.5m), 15s period, NW swell with 2,784 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 10AM (local time) - 3.5ft (1.0m), 11s period with NW swell.
Best Forecast Surf Conditions for Foz do Arelho this week:
The surf forecast for Foz do Arelho over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 10AM. The primary swell is predicted to be 1.0m and 11s period with a secondary swell of 0.7m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Foz do Arelho in the next 16 days are 2.5m 15s and forecast to arrive on Saturday (Sep 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 14th Sep) | 3.5ft (1.0m) 11s |
| Best Surf | 10AM (Sat 19th Sep) | 6.5ft (2.0m) 14s |
| Most Powerful | 1AM (Sat 19th Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Foz do Arelho over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what Foz do Arelho has in store for the next couple of weeks.
Right off the bat, we’re looking at a bit of a flat start. Nothing worth paddling out for on the 14th or 15th of September. The swell that shows up on the 16th is a big 10ft NW swell, but it’s a messy one with fresh cross-onshore winds making it lumpy and un-rideable. That kind of energy locks in for Thursday and Friday, but the wind stays nasty. The all-around energy is strong, hitting 1474 (strong wave energy) but it’s pretty much a write-off for surfing.
The real standout arrives Saturday the 19th of September. That morning you’ve got a 7ft NW swell at 14 seconds of period – proper groundswell – with glassy conditions from a light ENE breeze. The combined energy is pumping at 1736 (strong wave energy). This is serious. The water temp is sitting about average for the time of year, right where it should be. For experienced surfers, this is our top call for the whole run. That 6ft+ wave with that period and clean conditions is going to be magic out there.
Then Monday the 21st of September morning is another cracker. Back to glassy conditions (NNE 3 mph) with a 7ft NW swell, again with a long 14-second period. More strong energy at 1595. It’s another session for the experienced crew. Crowds are possible here, so try to get in early.
Later in the week, Sunday the 27th of September morning offers a little something for everyone, with a 57° to 59°F water temp and a 5ft NW swell at 10 seconds. The wind is light and offshore from the SSE, which will keep it clean. It's not a giant, but it’s a fun size for a beginner to intermediate.
Looking further out, Friday the 25th of September morning sees another nice jump with a 6ft WNW swell at 14 seconds. Offshore winds from the SE again, making for clean waves. Solid energy (1351). It’s a promising one but it’s more than a week away, so don’t lock in your plans just yet.
Overall, the first week has a rough start, but that Saturday to Monday window around the 19th to 21st is where you want to be in the water. There’s a few clean morning windows scattered after that, but the consistency winds down.
Rusty out.
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 17°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the N by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat morning, min 17°C on Thu night). Winds decreasing (fresh winds from the N on Wed night, light winds from the ENE by Sat morning). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 11 | NW 11 | NW 10 | NNW 10 | NW 6 | NNW 8 | NNW 9 | NNW 9 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 8 | NW 15 | NW 14 | NW 13 | NW 12 | NNW 12 | NNW 11 | NW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 242 | 169 | 102 | 63 | 58 | 848 | 1474 | 1302 | 2339 | 1369 | 1057 | 1117 | 821 | 512 | 2784 | 1494 | 1575 | 948 | 821 | 645 | 489 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | off | cross-on | cross |
High Tide | 5:13AM2.83m | 5:29PM2.82m | 5:46AM2.70m | 6:05PM2.59m | 6:21AM2.53m | 6:42PM2.34m | 6:59AM2.33m | 7:24PM2.10m | 7:47AM2.14m | 8:24PM1.90m | 9:01AM1.98m | 10:01PM1.80m | 10:44AM1.96m | 11:41PM1.86m | |||||||
Low Tide | 11:16AM0.18m | 11:34PM0.28m | 11:51AM0.35m | 00:07AM0.49m | 12:28PM0.56m | 00:41AM0.71m | 1:10PM0.78m | 1:22AM0.93m | 2:05PM0.99m | 2:21AM1.11m | 3:33PM1.13m | 4:02AM1.20m | 5:24PM1.09m | ||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | |
 | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 24 | 21 | 20 | 19 | 18 | 18 | 19 | 19 | 20 | 19 | 18 | 20 | 20 | 20 | 27 | 24 | 24 | 30 | 29 | 28 |
Feels °C | 26 | 22 | 22 | 19 | 17 | 14 | 13 | 13 | 14 | 15 | 14 | 13 | 17 | 17 | 18 | 24 | 21 | 22 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 10 | WNW 8 | NW 9 | — | — | — | — | NNW 10 | — | NNW 9 | NNW 9 | NNW 8 | NW 15 | NW 14 | NW 13 | NW 12 | NNW 12 | NNW 11 | NW 10 |
| kJ | 242 | 169 | 102 | 45 | 40 | — | — | — | — | 1369 | — | 1117 | 821 | 512 | 2784 | 1494 | 1575 | 948 | 821 | 645 | 424 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 8 | NNW 10 | WNW 11 | — | — | — | — | — | — | — | WNW 15 | NW 13 | — | NNW 8 | — | — | — | WNW 18 | NW 16 |
| kJ | 76 | 64 | 64 | 63 | 49 | — | — | — | — | — | — | — | 23 | 290 | — | 242 | — | — | — | 33 | 489 |
Swell 3 Height (m) Direction Period (s) | — | — | — | WNW 12 | WNW 8 | — | — | — | — | — | — | — | — | W 14 | — | — | — | — | — | — | — |
| kJ | — | — | — | 14 | 22 | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 5 | — | — | NW 6 | NNW 8 | NNW 9 | NNW 9 | NNW 10 | — | NNW 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 7 | — | — | 58 | 848 | 1474 | 1302 | 2339 | — | 1057 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 84 | 16 | 84 | 702 | 532 | 532 | 378 | 168 | 83 | 272 | 168 | 83 | 84 | 22 | 0 | 12 | 17 | 0 | 12 | 17 |
Best forecast wave conditions in Peniche | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Foz do Arelho Surf forecast
The above surf forecast table for Foz do Arelho provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Foz do Arelho can be found by selecting the local surf guide option on the grey menu. Our Foz do Arelho 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 (Foz do Arelho) 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 Foz do Arelho 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.
Foz do Arelho is 9 km (6 miles) from Caldad da Rainha. If you plan a holiday in Peniche, look for hotels and other accommodation in Caldad da Rainha. Caldad da Rainha has rooms for a wide range of budgets as well as car hire and transport links.
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