Surf Forecasts:
Foz do Arelho surf forecast from 31 Aug 2026:
- Best quality surf: Sunday 6 Sep, 7AM (local time) - 4.5ft (1.4m), 12s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 10PM (local time) - 6ft (1.9m), 10s period, NW swell with 725 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 7AM (local time) - 4.5ft (1.4m), 12s 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 Sunday (Sep 06) at 7AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Foz do Arelho in the next 16 days are 1.9m 10s and forecast to arrive on Monday (Aug 31) at 10PM. 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+) | 7AM (Sun 6th Sep) | 4.5ft (1.4m) 12s |
| Best Surf | 7AM (Sun 6th Sep) | 4.5ft (1.4m) 12s |
| Most Powerful | 10PM (Mon 31st Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Foz do Arelho over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
Right off the bat, I gotta be straight with you – this is a real tough stretch for Foz do Arelho. We’re lookin’ at a long, drawn-out run of poor conditions that’ll last from the 31st of August all the way through to the 5th of September. That’s a solid week of nothing worth paddling out for. The wind is mostly smackin’ us from the north, cross-onshore, and the waves are just messy and lumpy. Energy levels are weak to moderate at best, but the quality is just gone.
Finally, we get a glimmer of hope on Sunday the 6th of September. The morning session is the one to circle. The wind drops to nothing – glassy conditions – and that’s a massive positive. Swell is a clean 4ft from the NNW, period at 12 seconds, which is that nice groundswell push. This is where you want to be. The water temp is about average for this time of year. It’s an inconsistent break, so don’t expect a wave every minute, but when they come, they’ll be clean. You might have some company – crowds are possible here.
After that Sunday morning window, it gets messy again. The wind swings back northerly and cross-onshore for days. There’s a little spike in energy, but the wind’s just ruining the surface. The 9th of September sees some bigger swell – 6ft from the NNW – but the period is short (7 seconds) and the wind is onshore, so it’s choppy and tough. That’s more kite-surfing territory than paddle surfing.
The next real window of opportunity shapes up on Monday the 14th of September. The morning session gets a clean cross-offshore wind from the SSE, with a 4ft WNW swell (9-second period). The conditions will be clean. Then on Tuesday the 15th of September morning, we get a proper offshore wind from the SSE, 3ft swell from the WNW, and a nice long 12-second period. The wind will be clean, moderate offshore, and the waves should have some shape. This one’s a bit further out, so keep an eye on it, but it looks promising.
So, to sum it up: the only standout day is Sunday the 6th of September morning – glassy, clean, and rideable. The 14th and 15th of September mornings also look good for clean conditions, but they’re a week and a half away, so don’t book the trip just yet. The rest of the time, it’s a battle with the wind.
Stay stoked, and check the charts before you head out.
Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Mon morning, min 17°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat morning, min 17°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 | NW 10 | NW 10 | NW 9 | NW 9 | NNW 9 | NNW 8 | NNW 7 | NW 8 | NNW 7 | NNW 7 | WNW 9 | WNW 8 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NNW 12 | NNW 11 | NNW 11 |
Wave Graph | |||||||||||||||||||||
275 | 384 | 710 | 516 | 516 | 421 | 237 | 147 | 67 | 117 | 62 | 49 | 45 | 120 | 106 | 103 | 94 | 623 | 464 | 323 | 234 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on |
High Tide | 5:13AM2.79m | 5:28PM2.91m | 5:48AM2.73m | 6:05PM2.77m | 6:28AM2.63m | 6:49PM2.58m | 7:15AM2.48m | 7:43PM2.36m | 8:15AM2.32m | 8:58PM2.17m | 9:39AM2.23m | 10:35PM2.10m | 11:14AM2.29m | 00:06AM2.20m | |||||||
Low Tide | 11:14AM0.18m | 11:38PM0.17m | 11:51AM0.27m | 00:15AM0.31m | 12:33PM0.41m | 00:58AM0.49m | 1:25PM0.58m | 1:52AM0.70m | 2:33PM0.76m | 3:07AM0.87m | 4:09PM0.84m | 4:46AM0.91m | 5:48PM0.73m | ||||||||
7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | |
— | 8:09 | — | — | 8:07 | — | — | 8:07 | — | — | 8:05 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 21 | 21 | 19 | 20 | 21 | 19 | 26 | 24 | 24 | 29 | 29 | 22 |
Feels °C | 16 | 15 | 14 | 16 | 16 | 15 | 18 | 17 | 17 | 21 | 20 | 19 | 19 | 20 | 18 | 24 | 23 | 23 | 29 | 26 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 10 | W 16 | SW 16 | SW 15 | SW 14 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | WNW 8 | WNW 10 | WNW 9 | NNW 6 | NNW 7 | NW 13 | NNW 12 | NNW 11 | NNW 11 |
275 | 384 | 5 | 9 | 9 | 8 | 237 | 147 | 62 | 117 | 62 | 45 | 45 | 120 | 106 | 55 | 62 | 623 | 464 | 323 | 234 | |
Swell 2 Height (m) Direction Period (s) | W 11 | WNW 10 | — | — | — | — | NW 8 | NW 8 | NW 8 | WNW 9 | WNW 8 | WNW 9 | NW 5 | SW 13 | NW 11 | WNW 9 | WNW 9 | NNW 7 | WNW 10 | WNW 9 | W 9 |
9 | 10 | — | — | — | — | 53 | 51 | 67 | 32 | 61 | 49 | 17 | 7 | 19 | 103 | 94 | 52 | 72 | 47 | 40 | |
Swell 3 Height (m) Direction Period (s) | — | W 17 | — | — | — | — | SW 15 | SW 16 | WNW 10 | SW 14 | SW 14 | SW 14 | NW 10 | — | SW 13 | NW 10 | NW 12 | WNW 9 | N 6 | W 19 | W 16 |
— | 6 | — | — | — | — | 9 | 9 | 10 | 8 | 8 | 8 | 27 | — | 7 | 38 | 67 | 64 | 16 | 7 | 126 | |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NW 10 | NW 9 | NW 9 | NNW 9 | — | — | — | — | — | — | N 6 | NNW 5 | NNW 6 | — | — | — | — | SW 3 | — |
64 | 73 | 710 | 516 | 516 | 421 | — | — | — | — | — | — | 22 | 42 | 61 | — | — | — | — | 7 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 276 | 85 | 212 | 368 | 170 | 84 | 84 | 47 | 17 | 84 | 22 | 84 | 266 | 22 | 20 | 16 | 17 | 0 | 85 | 22 |
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.











