Surf Forecasts:
Arrifana surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 10PM (local time) - 4ft (1.2m), 8s period, NW swell with offshore winds.
- Most powerful swell: Friday 21 Aug, 10PM (local time) - 7ft (2.1m), 9s period, NNW swell with 660 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 10PM (local time) - 4ft (1.2m), 8s period with NW swell.
Best Forecast Surf Conditions for Arrifana this week:
The surf forecast for Arrifana over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 10PM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Arrifana in the next 16 days are 2.1m 9s and forecast to arrive on Friday (Aug 21) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 16th Aug) | 4ft (1.2m) 8s |
| Best Surf | 10PM (Sun 16th Aug) | 4ft (1.2m) 8s |
| Most Powerful | 10PM (Fri 21st Aug) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Arrifana over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let me break down what we’ve got coming up for Arrifana over the next couple of weeks. It’s a bit of a mixed bag, but there are a few windows where it all comes together.
We kick off with a real gem, but you gotta jump on it early. Sunday, the 16th of August, is looking like one of the cleanest, most inviting mornings you’ll find in this forecast. The joint is dead calm with glassy conditions, zero wind at all. The swell’s coming out of the NW at a solid 6 ft, and while the period’s only 8 seconds, the combined energy from the swells hitting here is a solid moderate 459. The water is noticeably colder than usual for this time of year—67°, so a good 4° below the norm—gonna need that wetsuit. For a beach and reef setup at Arrifana, that’s a treat. The offshore direction is NNE, which is bang on the optimum NW for this spot, making for some really clean walls.
After that Sunday morning, the surf kind of takes a nosedive for a good stretch. Monday through until early Friday are pretty forgettable. The swell drops right off, we get onshore and cross-shore winds messing things up, and the energy readings dip well down into the weak two-digit numbers. You’d be wasting your time paddling out. There’s a brief, clean spike on Friday the 21st morning with 6 ft and clean cross-offshore wind, but there’s a bit of a question mark over the tide and overall quality—still, it’s worth a look if you’re desperate.
The real standout of the long-range is shaping up for Sunday the 30th of August and into Monday the 31st. Sunday morning has a punchy 6 ft NW swell with a clean cross-offshore wind and the energy is pumping—829, which is very strong! That’s a lot of power heading in, but the wind stays clean, so for an advanced surfer, it’s going to be a ripper. The Monday morning after that is looking glassy again, with a cleaner 5 ft NW swell and a 10-second period, offering better shape and a bit more grunt. The energy is still strong at 459, and with glassy conditions, it’s going to be a treat. This is the pick of the second week, but it’s a week and a half out, so keep an eye on it.
A heads up: if the wind gets cross-shore or onshore, Arrifana’s beach-and-reef setup can get choppy pretty quick, and with some of those stronger swells and poor wind, the setup starts looking more like a kite surfer’s playground than a paddle surfer’s dream.
Overall, if you’re going to pick your moment, it’s the early hours of Sunday the 16th, and then keep your fingers crossed for that potential cannon on the 30th and 31st. The in-between is quiet, but that’s just how it goes sometimes. The forecasts can always change for the better, so don’t write it off completely.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sun morning, min 20°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Wed morning, min 16°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the NNW by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 9 | NW 7 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NW 7 |
Wave Graph | |||||||||||||||||||||
449 | 311 | 187 | 143 | 175 | 136 | 100 | 105 | 128 | 71 | 55 | 48 | 32 | 43 | 223 | 314 | 553 | 525 | 351 | 267 | 173 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross | cross-on | glassy | glassy | on | glassy | cross | on | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 5:45PM2.88m | 6:06AM2.60m | 6:24PM2.64m | 6:45AM2.43m | 7:05PM2.38m | 7:28AM2.25m | 7:52PM2.12m | 8:20AM2.08m | 8:56PM1.92m | 9:35AM1.97m | 10:28PM1.83m | 11:08AM1.97m | 11:56PM1.89m | ||||||||
Low Tide | 11:27AM0.20m | 11:55PM0.24m | 12:05PM0.37m | 00:31AM0.45m | 12:46PM0.57m | 1:08AM0.68m | 1:31PM0.79m | 1:53AM0.89m | 2:31PM0.97m | 2:56AM1.07m | 4:00PM1.08m | 4:31AM1.13m | 5:40PM1.04m | ||||||||
6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | |
— | 8:27 | — | — | 8:24 | — | — | 8:23 | — | — | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 23 | 25 | 25 | 21 | 25 | 25 | 21 | 25 | 25 | 21 | 24 | 24 | 19 | 21 | 21 | 18 | 22 | 21 | 19 |
Feels °C | 26 | 25 | 24 | 25 | 24 | 23 | 25 | 24 | 24 | 25 | 25 | 24 | 24 | 23 | 16 | 18 | 18 | 14 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 9 | WNW 9 | NNW 8 | WNW 9 | WNW 11 | NNW 8 | WNW 10 | NNW 9 |
449 | 311 | 187 | 143 | 175 | 136 | 100 | 105 | 128 | 71 | 55 | 48 | 30 | 43 | 30 | 314 | 15 | 23 | 351 | 31 | 64 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | NNW 9 | W 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 10 | WNW 9 | NW 6 | SW 15 | WNW 9 | WNW 12 | SW 14 | WNW 10 | SW 14 | WNW 9 |
10 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 7 | 6 | 6 | 38 | 32 | 19 | 8 | 16 | 14 | 7 | 37 | 8 | 17 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SSW 14 | SW 14 | SSW 4 | SSW 4 | SW 13 | SW 12 | NNW 10 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 |
— | — | — | 8 | 10 | 10 | 10 | 9 | 8 | 20 | 7 | 1 | 1 | 7 | 6 | 10 | 7 | 7 | 8 | 8 | 8 | |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | SSE 2 | S 3 | — | — | — | — | SSW 3 | SW 3 | — | — | SSW 3 | NW 7 | — | NNW 9 | NNW 8 | — | NNW 8 | NW 7 |
— | 2 | — | 1 | 1 | — | — | — | — | 1 | 2 | — | — | 1 | 223 | — | 553 | 525 | — | 267 | 173 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 0 | 5 | 33 | 0 | 3 | 662 | 0 | 3 | 33 | 3 | 5 | 452 | 403 | 62 | 587 | 55 | 55 | 603 | 0 |
Best forecast wave conditions in The Algarve | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Arrifana Surf forecast
The above surf forecast table for Arrifana provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Arrifana can be found by selecting the local surf guide option on the grey menu. Our Arrifana 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 (Arrifana) 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 Arrifana 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.
Arrifana is 27 km (17 miles) from Lagos. If you plan a holiday in The Algarve, look for hotels and other accommodation in Lagos. Lagos has rooms for a wide range of budgets as well as car hire and transport links.











