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São Martinho do Porto
São Martinho do Porto / Foz do Arelho (Lagoa de Óbidos) · beach
Now0.1/5
The swell is missing this beach
0.6m @ 9s NW · 1kW/m · +0.3m @ 12s NNWsecondary swell · 3kn N ↗offshore
Tide2.4m↓ falling· low in 4h38
🌊 18.6°Cwater23°CairWear:3/2 fullsuitSeaSlightUV6 HighSurfaceCleanConsistencyMixed(51)
TideLow 16:11 1.2mHigh 22:37 2.4mLow 04:49 1.2mHigh 11:16 2.6mOfficial tide predictions (WorldTides).
8-day outlook · Intermediate
Sat
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Swell height · metres
secondary swell
Wind · knots
Hour by hour
| Time | Score | Swell | Wind | Tide |
|---|---|---|---|---|
| 07:00 | 0.1 | 0.7m 7s WNW+0.2m 13s NNW | 2kn NNE ↗ | 0.6 ↑ |
| 08:00 | 0.1 | 0.7m 7s WNW+0.2m 14s NNW | 0kn NNW → | 0.8 ↑ |
| 09:00 | 0.0 | 0.7m 6s WNW+0.3m 13s NNW | 2kn WNW → | 1.0 ↑ |
| 10:00 | 0.0 | 0.7m 7s WNW+0.3m 12s NNW | 3kn NNE ↗ | 1.0 ↓ |
| 11:00 | 0.1 | 0.6m 9s NW+0.3m 12s NNW | 3kn N ↗ | 0.9 ↓ |
| 12:00 | 0.1 | 0.5m 11–14s NW+0.3m 12s NNW | 3kn NW → | 0.7 ↓ |
| 13:00 | 0.1 | 0.4m 13s NNW+0.3m 11s NNW | 3kn NNW → | 0.5 ↓ |
| 14:00 | 0.0 | 0.5m 13s NNW+0.4m 10s NNW | 4kn NNW → | 0.3 ↓ |
| 15:00 | 0.0 | 0.6m 12s NNW+0.5m 8s NW | 4kn NNW → | 0.1 ↓ |
| 16:00 | 0.1 | 0.7m 12s NNW+0.7m 7s WNW | 4kn NNW → | 0.0 ↓ |
| 17:00 | 0.1 | 0.8m 12s NNW+0.7m 6s WNW | 5kn NNW → | 0.0 ↑ |
| 18:00 | 0.1 | 0.9m 11–14s NNW+0.7m 6s WNW | 5kn NNW → g10 | 0.2 ↑ |
| 19:00 | 0.1 | 1.0m 11–14s NNW+0.7m 7s WNW | 6kn N ↗ | 0.4 ↑ |
| 20:00 | 0.2 | 1.0m 11–14s NNW+0.6m 7s WNW | 4kn N ↗ | 0.6 ↑ |
| 21:00 | 0.2 | 1.1m 11–14s NNW+0.6m 7s WNW | 5kn N ↗ | 0.9 ↑ |
Spot guide
- Best swell
- S–WSW
- Best wind
- NNE (offshore)
- Best tide
- Mid–high
- First–last light
- 06:42–20:31
Almost fully enclosed shell-shaped bay; barely breaks except when a big W/NW swell wraps through the narrow south mouth — the go-to flat-day beginner/SUP spot, not a real swell magnet.
Hazards very weak/inconsistent surf most days · boat traffic near the harbor and inlet · crowded swim/surf shared space in summer
Best time of year
Jan
46.6%
Feb
42.9%
Mar
29.3%
Apr
26.3%
May
10.2%
Jun
7.2%
Jul
7.7%
Aug
16.7%
Sep
29.1%
Oct
25%
Nov
33.7%
Dec
45%
Clean Blown out Too small
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