← Swimming
Foz do Arelho
São Martinho do Porto / Foz do Arelho (Lagoa de Óbidos)
2.6→ Steady
Rough
Now
🌊 16.1°CwaterSeaModerate3kn WNWUV0 LowTide2.4m ↓falling · low in 4 h 44 min
calmest 08:00 · 2.8
Hour by hour
| Time | Calm | Swell | Wind | Tide | water |
|---|---|---|---|---|---|
| 08:00 | 2.8 | 1.4m | 12kn NNE | 1.8m ↑ | 16.1°C |
| 09:00 | 2.7 | 1.4m | 12kn NNE | 2.1m ↑ | 16.1°C |
| 10:00 | 2.7 | 1.5m | 12kn NNE | 2.4m ↑ | 16.1°C |
| 11:00 | 2.1 | 1.7m | 11kn NNE | 2.7m ↑ | 16.1°C |
| 12:00 | 1.7 | 1.9m | 11kn NNE | 2.8m ↑ | 16.1°C |
| 13:00 | 1.5 | 2.0m | 12kn N | 2.7m ↓ | 16.1°C |
| 14:00 | 1.4 | 2.0m | 12kn N | 2.5m ↓ | 16.1°C |
| 15:00 | 1.3 | 2.1m | 13kn N | 2.1m ↓ | 16.1°C |
| 16:00 | 1.2 | 2.1m | 13kn N | 1.7m ↓ | 16.1°C |
| 17:00 | 1.2 | 2.2m | 12kn N | 1.4m ↓ | 16.1°C |
| 18:00 | 1.2 | 2.1m | 12kn N | 1.2m ↓ | 16.0°C |
| 19:00 | 1.2 | 2.2m | 11kn N | 1.2m ↑ | 16.0°C |
| 20:00 | 1.1 | 2.2m | 11kn N | 1.3m ↑ | 16.0°C |
Know before you get in rivermouth/lagoon-outlet current · shifting sandbars
Swim alerts
How this is calculated
Flatness is modelled from the wave forecast. Rips, flags and lifeguards are not in this data — always judge the beach in front of you.
Tide times →Foz do ArelhoLive on MEO Beachcam ↗Foz do Arelho - Beach · worldcam.euWatch on a webcam site ↗Caldas da Rainha – Foz do Arelho Beach Live Webcam · portugalwebcams.ptWatch on a webcam site ↗Surf forecast →Sheltered water next door: Lagoa de Óbidos →
Guides Beach Day Checklist: Portugal Coast Conditions · Snorkeling Conditions in Portugal: How to Read Them · Tides and Surf Portugal: Best Tide for Surfing