Surf Forecasts:
Arrifana surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 13 Sep, 10PM (local time) - 4.5ft (1.3m), 14s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 14 Sep, 1AM (local time) - 4.5ft (1.4m), 14s period, NW swell with 787 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 7PM (local time) - 5ft (1.6m), 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 Thursday (Sep 10) at 7PM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Arrifana in the next 16 days are 1.4m 14s and forecast to arrive on Monday (Sep 14) at 1AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Sunday (Sep 13) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Thu 10th Sep) | 5ft (1.6m) 8s |
| Best Surf | 10PM (Sun 13th Sep) | 4.5ft (1.3m) 14s |
| Most Powerful | 1AM (Mon 14th Sep) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for Arrifana over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's look at the next 16 at Arrifana. It's a mixed bag, so you gotta pick your spots.
Water temp is 66°F, which is a solid 5°F colder than it should be for this time of year. That’s a real chill, so don't be a hero in a shorty.
The first few days are a bit of a wash. Through Sunday and Monday (Sept 6th & 7th), we have a 4ft to 5ft NW swell, but a fresh cross-off shore wind is making it messy. The energy is moderate (365-758), but it's not clean. That continues into the middle of the week – Tuesday and Wednesday (8th-9th) are lumpy and poor. The swell drops to a weak 2ft on Wednesday morning with only 68 energy – not worth it.
By Thursday the 10th, the swell jumps to 6ft from the NW, but the period is a short 8 seconds. That’s a lot of chop for a beach-and-reef spot, and the wind is still cross-off. It’s a mess. Friday morning the 11th is a tease – glassy with a 4ft swell, but it's that short-period wind swell. It's surfable, but "ordinary" is the word.
The first real standout is Sunday the 13th. The morning shows a 3ft swell from the NW, but with a 14-second period. That’s proper groundswell (298 energy), and it’s glassy with a light NNE breeze. For Arrifana’s reef, that long-period groundswell will wrap in beautifully, giving you some clean, lined-up waves. It's small, but it'll be quality.
The next morning, Monday the 14th, is our best bet. We have a 4ft NW swell, still with a solid 13-second period, and glassy conditions with an ESE wind. The energy is up to 535, and the forecast is looking good. This is the one to circle. It’s a small, clean window before the wind picks up again.
After that, it gets sloppy again. We get decent mornings on the 19th and 20th with 5ft to 6ft NW swell, but the wind is a factor. The Saturday morning (19th) has a light cross-off and 5ft from the NW (524 energy), offering fun, punchy waves if you want a bigger, more powerful peak. The 20th is similar, a little smaller at 5ft with a NNE breeze.
The energy through the second week is moderate, mostly in the 100-500 range. The standout is undeniably the Monday morning of the 14th, with the Sunday the 13th a close second.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 19°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Sat morning, min 17°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed afternoon, calm by Fri morning). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 | WNW 15 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 303 | 331 | 530 | 624 | 401 | 300 | 204 | 97 | 68 | 306 | 530 | 456 | 374 | 314 | 178 | 179 | 142 | 73 | 57 | 66 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | glassy | cross | glassy | off | cross-on | cross-off |
High Tide | 11:49PM2.18m | 12:14PM2.46m | 00:55AM2.38m | 1:13PM2.71m | 1:46AM2.58m | 2:00PM2.93m | 2:29AM2.75m | 2:43PM3.08m | 3:08AM2.86m | 3:22PM3.14m | 3:45AM2.90m | 3:59PM3.10m | ||||||||
Low Tide | 5:31PM0.72m | 5:56AM0.76m | 6:43PM0.49m | 6:58AM0.55m | 7:37PM0.25m | 7:47AM0.33m | 8:21PM0.07m | 8:29AM0.16m | 9:00PM-0.04m | 9:08AM0.06m | 9:36PM-0.07m | 9:45AM0.03m | 10:10PM-0.02m | |||||||
 |  | |  | | | |  | | | | | | | | | | | | | |
 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | 7:57 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 29 | 27 | 23 | 23 | 22 | 20 | 20 | 20 | 17 | 26 | 25 | 22 | 27 | 25 | 25 | 31 | 28 | 26 |
Feels °C | 23 | 23 | 26 | 23 | 21 | 20 | 19 | 19 | 17 | 15 | 12 | 23 | 24 | 20 | 26 | 24 | 25 | 31 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | NW 12 | WNW 15 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | NW 9 | NW 8 | NW 14 | NW 11 | NW 8 | NNW 8 | NNW 8 | NW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 6 |
| kJ | 303 | 331 | 530 | 624 | 401 | 300 | 204 | 97 | 68 | 7 | 20 | 456 | 374 | 314 | 178 | 179 | 142 | 73 | 57 | 66 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | NW 11 | NNW 10 | NNW 10 | NW 9 | — | — | — | — | — | N 13 | NW 10 | NNW 12 | NNW 10 | NNW 10 | SE 7 | SE 9 | SE 8 | SE 8 | SE 8 |
| kJ | 62 | 166 | 65 | 37 | 3 | — | — | — | — | — | 3 | 25 | 45 | 86 | 54 | 15 | 47 | 95 | 61 | 64 |
Swell 3 Height (m) Direction Period (s) | ESE 6 | WNW 9 | WNW 9 | ESE 5 | — | — | — | — | — | — | — | NNW 12 | — | E 3 | SE 7 | W 7 | NW 11 | WNW 10 | WNW 10 | WNW 9 |
| kJ | 4 | 34 | 31 | 3 | — | — | — | — | — | — | — | 28 | — | 1 | 12 | 1 | 5 | 38 | 36 | 32 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NW 6 | NW 7 | NW 6 | NNW 7 | NW 6 | NNW 6 | NNW 6 | NW 5 | NW 8 | NW 8 | — | — | — | — | — | — | — | — | — |
| kJ | 24 | 157 | 127 | 97 | 186 | 83 | 84 | 116 | 31 | 306 | 530 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 587 | 26 | 23 | 244 | 26 | 26 | 159 | 55 | 405 | 245 | 55 | 23 | 32 | 23 | 0 | 27 | 0 | 3 | 26 | 3 |
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.
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