Swell height
The significant height of the offshore swell: approximately the average of its highest third of waves. Individual waves can be larger.
Loading the latest offshore forecast and checking official sources…
Tuesday 27 October · Portugal local time
Offshore conditions, explained simply. See what the swell is doing now and what the next few days could bring.
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Choose a day to see the forecast hour by hour.
Heights describe offshore swell, not waves breaking at the beach.
Offshore swell — not wave height at the beach.
Each level needs the height and mean period together, from W–NW, for at least 3 hours. Orange and red need both forecasts to agree. One forecast alone, or more than 72 hours ahead: yellow only.
The band above each day shows its strongest swell watch. Grey means incomplete data. These preliminary watches are not official warnings or safety ratings.
| Time | Swell (m) | GFS swell (m) | Mean period | Swell from | Wind | Wind from |
|---|---|---|---|---|---|---|
| 00:00 | 1.9 | 1.6 | 9 s | NW | — | Unavailable |
| 03:00 | 1.9 | 1.8 | 9 s | NW | — | Unavailable |
| 06:00 | 1.7 | 2.0 | 10 s | NW | — | Unavailable |
| 09:00 | 2.3 | 2.2 | 10 s | NW | — | Unavailable |
| 12:00 | 2.7 | 2.4 | 10 s | NW | — | Unavailable |
| 15:00 | 2.9 | 2.4 | 10 s | NW | — | Unavailable |
| 18:00 | 2.9 | 2.4 | 10 s | NW | — | Unavailable |
| 21:00 | 2.8 | 2.3 | 10 s | NW | — | Unavailable |
Praia do Norte is shaped by the canyon, the beach and the arriving swell. An offshore model cannot tell you the exact size of a wave breaking here.
The significant height of the offshore swell: approximately the average of its highest third of waves. Individual waves can be larger.
Longer periods indicate more widely spaced waves and, at the same height, a more energetic swell. Direction tells you where it comes from.
Wind affects the surface and how waves break. A favourable wind does not make a powerful swell safe to enter.
Explore our private, multidisciplinary surf training in Peniche and Nazaré.
Explore the trainingDays 4–7 are an early outlook. Timing and strength can change. Today’s range includes the full day, including earlier hours.
Forecast data: Open-Meteo / model attribution · Official warnings: IPMA · Updated 27 Oct, 18:09
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