
Surf Forecasts:
Arrifana surf forecast from 9 Sep 2026:
- Best quality surf: Sunday 13 Sep, 1PM (local time) - 2.5ft (0.7m), 14s period, NW swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 1AM (local time) - 6.5ft (2.0m), 8s period, NNW swell with 554 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 7AM (local time) - 4.5ft (1.4m), 7s 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 Friday (Sep 11) at 7AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.5m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Arrifana in the next 16 days are 2.0m 8s and forecast to arrive on Thursday (Sep 17) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Sunday (Sep 13) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 11th Sep) | 4.5ft (1.4m) 7s |
| Best Surf | 1PM (Sun 13th Sep) | 2.5ft (0.7m) 14s |
| Most Powerful | 1AM (Thu 17th Sep) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Arrifana over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a proper look at what’s going on with the waves at Arrifana.
The first week or so is a bit of a write-off, to be honest. We’ve got a few small waves but the wind and quality just aren’t there for a proper session. The good news is that the second week really starts to turn things around, with a proper standout day that’s worth circling on the calendar.
Right from the start, the water here is running much colder than normal for this time of year (67°F), so you’ll want a decent suit.
Wednesday the 9th has some waist-to-chest high swell (5ft) from the NW, but a fresh 30 km/h cross-offshore wind is making it pretty messy. Combined energy is moderate at 326, but the surf quality is poor, so I’d give it a miss.
Thursday the 10th is more of the same – a bit of size (6ft) and a moderate breeze, but the conditions are marginal. Friday morning the 11th sees the wind drop to a glassy 5 km/h from the NE, which is a beautiful thing, but the swell drops to 4ft with a short period of 7 seconds. The energy is weak (209) and the waves are ordinary. You might get a few fun ones if you’re desperate, but it’s not worth racing for.
Saturday the 12th and Sunday the 13th are tiny and weak. Sunday morning has a long-period 14-second swell (221 energy) but it’s only 2ft – more of a rolling lump than a wave. The afternoon picks up a bit (4ft, 13-second period, 470 energy) and goes glassy, so that’s a better window for a light cruise, but still not a standout.
Monday the 14th morning is glassy with 4ft of NW groundswell (12-second period, 427 energy) – that’s actually a nice, clean, mellow session for a Monday morning. Afternoon turns cross-shore and choppy, so get it early.
Then there’s a real flat spell from Tuesday the 15th through to Wednesday the 16th, with tiny, weak waves and strong winds. Energy drops to under 100 on Tuesday, and Wednesday sees a fresh 30-35 km/h cross-offshore wind with 6-6ft of lumpy, poor quality swell. Not worth paddling out.
Thursday the 17th and Friday the 18th see the swell rebuild with moderate energy (over 600), but the wind is still cross-offshore and a bit strong. Friday morning with 6ft of NW swell and a gentle breeze looks the best of this stretch – clean waves, but the wind is still side-off, so not perfect.
Now, here’s the real standout. Monday the 21st of September. This is the one you’ve been waiting for. We’ve got a solid 7ft of long-period NW groundswell (14-13 seconds) with glassy conditions in the morning and a light offshore breeze in the afternoon. The combined energy is massive at 1851 and 1565 – that’s strong to very strong wave energy. The water is clean, the wind is light and glassy, and the swell has real power. The optimum direction is NW, and that’s exactly what we’re getting. This is excellent surf for experienced surfers – the size is over 8ft at peak, so it’s for experts only. The break is a beach and reef setup, so with that long period, it’ll be running down the reef and point, holding shape, and giving you proper barrels. The crowd is listed as “sometimes” so you might have a few locals out, but it’s worth it.
The rest of the second week fades out. Tuesday the 22nd has some decent size (6ft) but cross-shore wind and poor conditions. By Wednesday the 23rd and Thursday the 24th, it’s tiny and weak again.
So, bottom line: the first week and a half are mostly a dud, but that Monday the 21st is a proper gem. Mark it, get your sleep, and be on it early. That’s your best shot.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat morning, min 17°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed night, calm by Fri night). | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sun morning, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 | NNW 8 | NW 8 | NW 8 | NNW 7 | NW 7 | NW 7 | NW 6 | NNW 6 | WNW 10 | NW 7 | NW 14 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 6 |
Wave Graph | ||||||||||||||||||||
322 | 464 | 362 | 215 | 274 | 151 | 93 | 40 | 51 | 54 | 46 | 167 | 444 | 450 | 427 | 298 | 134 | 74 | 76 | 222 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross | off | cross-off | cross-on | glassy | off | glassy | glassy | glassy | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:29AM2.75m | 2:43PM3.08m | 3:08AM2.86m | 3:22PM3.14m | 3:45AM2.90m | 3:59PM3.10m | 4:20AM2.88m | 4:35PM2.97m | 4:54AM2.80m | 5:10PM2.78m | 5:27AM2.66m | 5:45PM2.55m | ||||||||
Low Tide | 8:21PM0.07m | 8:29AM0.16m | 9:00PM-0.04m | 9:08AM0.06m | 9:36PM-0.07m | 9:45AM0.03m | 10:10PM-0.02m | 10:20AM0.08m | 10:42PM0.11m | 10:55AM0.19m | 11:14PM0.28m | 11:30AM0.35m | 11:45PM0.49m | |||||||
— | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | |
7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 17 | 24 | 23 | 20 | 25 | 24 | 22 | 29 | 27 | 24 | 30 | 27 | 24 | 29 | 26 | 25 | 29 | 25 | 19 |
Feels °C | 15 | 12 | 22 | 20 | 18 | 25 | 23 | 21 | 28 | 26 | 23 | 29 | 27 | 24 | 27 | 24 | 23 | 26 | 23 | 17 |
Swell 1 Height (m) Direction Period (s) | N 13 | NW 11 | NW 8 | NNW 10 | NNW 7 | NW 7 | NW 7 | NW 6 | NNW 6 | NW 7 | NW 7 | SE 8 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 11 |
4 | 20 | 362 | 65 | 274 | 151 | 93 | 40 | 51 | 44 | 46 | 78 | 444 | 450 | 427 | 298 | 134 | 74 | 76 | 31 | |
Swell 2 Height (m) Direction Period (s) | — | — | NW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | SE 8 | SE 7 | WNW 9 | NW 7 | SE 8 | SE 8 | SE 7 | SE 7 | WNW 9 | WNW 8 | WNW 8 | NNW 9 |
— | — | 25 | 42 | 60 | 54 | 35 | 15 | 28 | 33 | 46 | 54 | 45 | 58 | 34 | 22 | 44 | 23 | 13 | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | NNW 12 | — | — | W 7 | W 7 | SE 8 | NW 10 | WNW 10 | SE 8 | NW 14 | WNW 9 | — | — | WNW 9 | SE 7 | SE 6 | ESE 6 | SE 5 |
— | — | 15 | — | — | 4 | 4 | 15 | 25 | 54 | 42 | 167 | 26 | — | — | 16 | 8 | 6 | 3 | 1 | |
Wind waves Height (m) Direction Period (s) | NW 8 | NNW 8 | — | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — | NW 4 | NNW 4 | NNW 4 | NNW 6 |
322 | 464 | — | 215 | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 8 | 24 | 222 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 459 | 55 | 55 | 632 | 23 | 0 | 32 | 4 | 3 | 26 | 3 | 0 | 0 | 0 | 0 | 31 | 0 | 32 | 587 | 62 |
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.










