Forecast apps do not replace eyeballing the ocean, but they stop wasted petrol and wrong-beach days. On the Costa Vicentina, swell direction, period, and Nortada-style wind separate fun from slog. Below: main tools in 2026 and the numbers that matter for Aljezur.
Surfline
What it does well: Clean interface, lots of spot-specific forecasts, cams at some locations, decent swell/wind/tide charts. Many surfers use it as their default daily check.
Downsides: The best features (longer-range detail, some cams, premium models) sit behind Surfline Premium. Magicseaweed was folded into Surfline, so if you miss MSW, this is where that audience largely landed.
For the Costa Vicentina: Useful for orientation, but always cross-check wind with a dedicated wind app — Surfline can be right on swell and still miss how quickly the sea breeze turns the afternoon onshore at your specific beach.
Windy
What it does well: Outstanding visual wind maps (and rain, waves, multiple models). Great for seeing whether the Nortada will fill in early or hold off until afternoon. Free tier is genuinely usable.
Downsides: Surf-specific “quality” scores are less nuanced than dedicated surf sites; you still interpret swell yourself.
Best for: Wind timing, squalls, and comparing ECMWF vs GFS when you care about a few hours’ difference.
Windguru
What it does well: Dense tables trusted by windsurfers and surfers on the Iberian coast for years. Strong for hour-by-hour wind and gusts at coastal stations.
Downsides: UI is utilitarian; beginners can feel overwhelmed until they learn which rows to hide.
Best for: “Will Monte Clérigo be blown out by 11am?” type questions.
Surf-Forecast.com
What it does well: Global swell maps, period contours, and spot pages with a more “meteorology” feel. Handy when you want to see how a swell marches toward Portugal.
Downsides: Spot granularity still needs local knowledge — the Algarve’s nooks matter.
Best for: Big-picture swell trains and direction before you drill into a single beach.
Quick comparison
| App / site | Strength | Weakness | Free tier |
|---|---|---|---|
| Surfline | Surf-first UX, cams (where available) | Paywall for depth | Basic free |
| Windy | Wind visuals, models | Less surf “feel” | Strong free |
| Windguru | Wind detail, gusts | Busy tables | Free + extras |
| Surf-Forecast | Swell maps, period | Needs local interpretation | Mostly free |
Which is “best” for Aljezur?
There isn’t one winner. A practical stack:
- Windy or Windguru for morning vs afternoon wind.
- Surfline or Surf-Forecast for swell height, period, and direction.
- Your eyes at the beach.
That matches how we teach reading conditions in how to read surf conditions — apps give hypotheses; the ocean confirms.
Key metrics to read (skip the rest at first)
- Swell direction (degrees or cardinal): On this coast, W–NW is the bread and butter; SW can light up certain corners.
- Swell period (seconds): Longer usually means more organised, powerful groundswell; short periods are often weaker wind swell.
- Wind direction: Offshore (from land toward sea on this coastline) grooms waves; onshore chops them.
- Tide: Same swell can be perfect or closed-out depending on sandbanks — tide charts are non-negotiable.
Free vs paid: is premium worth it?
Paid can help if you live here full-time or chase specific windows — better long-range models and cam access add up. Free is enough for many visitors: check two models, pick a morning slot in summer, and stay flexible.
If you’re booking a short trip, our best time to surf Aljezur article lines up seasons with what you’ll see in the apps.
Ground your forecasts in safety
Forecasts don’t show rip currents, crowds, or your fitness on the day. Pair tech with surf safety in Portugal and realistic spot choice — e.g. Arrifana for many intermediates vs more exposed beaches when you’re ready.
Surfing Aljezur without hauling boards on a plane? We rent soft-top boards (6'6, 7'0, 7'8, 8'6) and seasonal wetsuits with free delivery to Aljezur, Arrifana, Vale da Telha, Monte Clérigo, Amoreira, Rogil, and Carrapateira (broader Costa Vicentina — ask case-by-case) — see /pricing or contact / WhatsApp +351 929 244 395.
Frequently asked questions
Which surf forecast app is most accurate?
There is no single winner, which is why most people here use two. Windy and Windguru are the strongest for hour-by-hour wind, which is what decides quality on this coast; Surfline and Surf-Forecast are better for swell height, period and direction. Check wind on one, swell on the other, then confirm with your eyes at the beach.
Is a paid surf forecast subscription worth it?
Only if you surf here constantly or chase specific windows. Paid tiers buy longer-range models and cam access, which pays off when you live on the coast. For a one- or two-week trip, the free tiers are enough: compare two models, plan a morning session in summer, and stay flexible about which beach.
Do I need a separate app for tides?
Not necessarily — most surf apps already include tide times. A dedicated tide app or a simple tide table works just as well, and national hydrographic sources are the most reliable. Pick one you will actually open rather than collecting five.
Why did my forecast say "good" but the beach was messy?
Usually local wind, model resolution, or the tide. Forecast models average conditions over a wide area and miss what a single headland does to the wind. The tide can also reshape the sandbank between the forecast you read and the time you arrived. Always reconcile the forecast with a beach check.
ECMWF or GFS — which model is better for Portugal?
Neither is reliably better, so compare both on Windy when a front is approaching. If the two models agree, you can plan with confidence. If they diverge, treat anything beyond a couple of days as provisional.
Can I just use surf cams instead of a forecast?
Cams are a useful input but not enough on their own. They show one angle, so they miss corners of the beach, and they cannot tell you the swell period or how the wind will change in two hours. Use a cam to confirm what the forecast already told you.