Sheltered North Bay · Porto MonizBeginner / All Levels

Seixal · Praia de Areia Preta — 24h Tide Lab & Wave Energy Matrix

Tide OK ({tide}m) (1.12m)

Walk straight in and out on soft black sand next to the Seixal harbor jetty. When the open North Coast is huge (2.5m+), the breakwater filters the swell into clean 0.8m–1.2m waves inside the bay.

SURFABLE DAYS (LAST 30 DAYS)
27 / 30 days
North Atlantic Groundswell Consistency
GLASSY / OFFSHORE SESSIONS
86.0%
Orographic Shelter & Offshore Wind
MEAN / PEAK ENERGY (30D)
1070 kJ / 2980 kJ
Average 13.0s period
GOOD TIDE LEVEL TO GET IN AND OUT SAFELY VIA THE BOAT RAMP CHANNEL (0.78M - 1.62M)
Safe Sand Bottom on All Tides
Tide OK ({tide}m) (1.12m)

24-HOUR TIDE CHART & SAFE WATER ENTRY WINDOWS — SEIXAL · PRAIA DE AREIA PRETA

Coastal Semi-Diurnal Amplitude
2.2m1.2m0.4mBEST WINDOW: {START}–{END} (0.40m – 1.80m)CURRENT TIDE: 1.12m ▲00:0004:0008:0012:0016:0020:0023:59
00:00
0.45m
Flooding
IDEAL
02:00
0.72m
Flooding
IDEAL
04:00
1.11m
Flooding
IDEAL
06:00
1.50m
Flooding
IDEAL
08:00
1.80m
Flooding
IDEAL
10:00
1.93m
High Tide
AVOID
12:00
1.85m
Ebbing
IDEAL
14:00
1.58m
Ebbing
IDEAL
16:00
1.19m
Ebbing
IDEAL
18:00
0.80m
Ebbing
IDEAL
20:00
0.50m
Ebbing
IDEAL
22:00
0.37m
Low Tide
IDEAL

24-HOUR HOUR-BY-HOUR FORECAST

Hourly + 6-Day Overview

Seixal · Praia de Areia Preta — 1. Current Wave Size & Wind

1. Wave Size [Sets]: Sets up to {height}m
2. Period (s): 2. Best Tide Hours to Get In & Out
3. Wave Power (kJ): Wave Power & Size Right Now
4. Wind & Tide: 3. Beach Bottom, Access & Safety Tips
1ST SWELL (Mon 09 Nov)1ST SWELL (Primary Breaking) + 2ND SWELL & 3RD SWELL
1ST SWELLPrimary Breaking
1.0m [Sets 1.3m] · 12s
Power: 332 kJ · NNW (345°)
NNW
2ND SWELLSecondary Train
0.5m · 14s
Power: 97 kJ · NW (323°)
NW
3RD SWELLTertiary Train
0.3m · 9s
Power: 22 kJ · NNE (19°)
NNE
COASTAL MAP · 1ST SWELL & WINDSeixal · Praia de Areia Preta · Mon 09 Nov (14:00)GPS 32.8217°, -17.1026° · DIRECTION THE BEACH FACES: NNE (15°)
N 0°E 90°S 180°W 270°SWELL 3:0.3m @ 9s NNE (19°) · 22 kJSWELL 2:0.5m @ 14s NW (323°) · 97 kJSWELL 1:1.0m [1.3m] @ 12s NNW (345°) · 332 kJSEIXAL · PRAIA DWIND (OFFSHORE): 9 km/h (5 kt) SSWCURRENT TIDE (14:00): 2.06m · RATING (0-10) 5.6/10
1ST SWELL (Primary Breaking)Aligned Pulse
1.0m [Sets 1.3m] · 12s NNW (345°) · 332 kJ
2ND SWELL (Secondary Train)Aligned Pulse
0.5m · 14s NW (323°) · 97 kJ
3RD SWELL (Tertiary Train)Aligned Pulse
0.3m · 9s NNE (19°) · 22 kJ
WIND & CURRENT TIDE (14:00)Offshore
9 km/h (5 kt) SSW · Current Tide 2.06m
24-HOUR HOUR-BY-HOUR FORECASTMon 09 Nov — 00:00 - 23:00HI: 02:45 (2.2m) / 14:55 (2.2m) · LO: 08:50 (0.2m) / 21:05 (0.0m)
Select Day (24h):
Hour (00h–23h)
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Rating (0-10)
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
1st Swell [Sets]
Primary (m · s · kJ)
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
1.0m [1.3m]
NNW
12s · 332kJ
1.0m [1.3m]
NNW
12s · 332kJ
1.0m [1.3m]
NNW
12s · 332kJ
1.0m [1.3m]
NNW
12s · 332kJ
1.0m [1.3m]
NNW
12s · 332kJ
1.0m [1.3m]
NNW
12s · 332kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
0.9m [1.2m]
NNW
12s · 269kJ
2nd Swell
Swell 2
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 10s
NW
69kJ · 318°
0.5m · 14s
NW
97kJ · 323°
0.5m · 14s
NW
97kJ · 323°
0.5m · 14s
NW
97kJ · 323°
0.5m · 14s
NW
97kJ · 323°
0.5m · 14s
NW
97kJ · 323°
0.5m · 14s
NW
97kJ · 323°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
0.5m · 10s
NW
69kJ · 315°
3rd Swell
Swell 3
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 14°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
NNE
22kJ · 19°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
0.3m · 9s
N
22kJ · 11°
Wind (Hourly)
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
S9 km/hOffshore
SSW9 km/hOffshore
SSW9 km/hOffshore
SSW9 km/hOffshore
SSW9 km/hOffshore
SSW9 km/hOffshore
SSW9 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
SSW11 km/hOffshore
Tide & Entry
1.29m ▲
Tide OK ({tide}m)
1.78m ▲
Tide OK ({tide}m)
2.10m ▲
Tide OK ({tide}m)
2.17m ▼
Tide OK ({tide}m)
1.97m ▼
Tide OK ({tide}m)
1.56m ▼
Tide OK ({tide}m)
1.05m ▼
Tide OK ({tide}m)
0.57m ▼
Tide OK ({tide}m)
0.24m ▼
Tide OK ({tide}m)
0.16m ▲
Tide OK ({tide}m)
0.35m ▲
Tide OK ({tide}m)
0.74m ▲
Tide Caution ({tide}m)
1.24m ▲
Tide Caution ({tide}m)
1.73m ▲
Tide Caution ({tide}m)
2.06m ▲
Tide Caution ({tide}m)
2.15m ▲
Tide Caution ({tide}m)
1.98m ▼
Tide Caution ({tide}m)
1.59m ▼
Tide OK ({tide}m)
1.07m ▼
Tide OK ({tide}m)
0.55m ▼
Tide OK ({tide}m)
0.17m ▼
Tide OK ({tide}m)
0.02m ▲
Tide OK ({tide}m)
0.14m ▲
Tide OK ({tide}m)
0.50m ▲
Tide OK ({tide}m)
18 Compared Slots18 Compared Slots
Day // TimeMon 09 NovTue 10 NovWed 11 NovThu 12 NovFri 13 NovSat 14 Nov
Slot
AM
08:00
PM
14:00
NIGHT
20:00
AM
08:00
PM
14:00
NIGHT
20:00
AM
08:00
PM
14:00
NIGHT
20:00
AM
08:00
PM
14:00
NIGHT
20:00
AM
08:00
PM
14:00
NIGHT
20:00
AM
08:00
PM
14:00
NIGHT
20:00
Rating (0-10)
5.6
5.6
5.6
5.6
5.6
5.6
3.8
3.8
3.8
3.8
5.6
3.8
5.6
5.6
5.6
5.6
5.6
5.6
1st Swell [Sets]
Primary Breaking
0.9m
[1.2m]
1.0m
[1.3m]
0.9m
[1.2m]
0.8m
[1.0m]
0.8m
[1.0m]
0.8m
[1.0m]
0.7m
[0.9m]
0.7m
[0.9m]
0.7m
[0.9m]
0.7m
[0.9m]
0.8m
[1.0m]
0.7m
[0.9m]
0.8m
[1.0m]
0.9m
[1.2m]
0.8m
[1.0m]
0.9m
[1.2m]
1.0m
[1.3m]
0.9m
[1.2m]
1st Swell Dir
NNW340°
NNW345°
NNW337°
NNW340°
NNW345°
NNW337°
NNW340°
NNW345°
NNW337°
NNW340°
NNW345°
NNW337°
NNW340°
NNW345°
NNW337°
NNW340°
NNW345°
NNW337°
1st Period (s)12s12s12s11s12s11s11s12s11s11s12s11s11s12s11s11s12s12s
1st Power (kJ)269 kJ332 kJ269 kJ195 kJ213 kJ195 kJ149 kJ163 kJ149 kJ149 kJ213 kJ149 kJ195 kJ269 kJ195 kJ247 kJ332 kJ269 kJ
2nd Swell
Swell 2 (Size · s · kJ)
0.5m · 10sNW69 kJ · 318°
0.5m · 14sNW97 kJ · 323°
0.5m · 10sNW69 kJ · 315°
0.4m · 9sNW40 kJ · 318°
0.4m · 14sNW62 kJ · 323°
0.4m · 9sNW40 kJ · 315°
0.4m · 9sNW40 kJ · 318°
0.4m · 14sNW62 kJ · 323°
0.4m · 9sNW40 kJ · 315°
0.4m · 9sNW40 kJ · 318°
0.4m · 14sNW62 kJ · 323°
0.4m · 9sNW40 kJ · 315°
0.4m · 9sNW40 kJ · 318°
0.5m · 14sNW97 kJ · 323°
0.4m · 9sNW40 kJ · 315°
0.5m · 9sNW62 kJ · 318°
0.5m · 14sNW97 kJ · 323°
0.5m · 10sNW69 kJ · 315°
3rd Swell
Swell 3 (Size · s · kJ)
0.3m · 9sNNE22 kJ · 14°
0.3m · 9sNNE22 kJ · 19°
0.3m · 9sN22 kJ · 11°
0.2m · 8sNNE10 kJ · 14°
0.2m · 9sNNE10 kJ · 19°
0.2m · 8sN10 kJ · 11°
0.2m · 8sNNE10 kJ · 14°
0.2m · 9sNNE10 kJ · 19°
0.2m · 8sN10 kJ · 11°
0.2m · 8sNNE10 kJ · 14°
0.2m · 9sNNE10 kJ · 19°
0.2m · 8sN10 kJ · 11°
0.2m · 8sNNE10 kJ · 14°
0.3m · 9sNNE22 kJ · 19°
0.2m · 8sN10 kJ · 11°
0.3m · 8sNNE20 kJ · 14°
0.3m · 9sNNE22 kJ · 19°
0.3m · 9sN22 kJ · 11°
Wave ShapeAligned PulseAligned PulseAligned PulseSingle TrainAligned PulseSingle TrainSingle TrainAligned PulseSingle TrainSingle TrainAligned PulseSingle TrainSingle TrainAligned PulseSingle TrainSingle TrainAligned PulseAligned Pulse
Wind
S9 km/h5 kt
SSW9 km/h5 kt
SSW11 km/h6 kt
S9 km/h5 kt
SSW11 km/h6 kt
SSW11 km/h6 kt
S9 km/h5 kt
SSW11 km/h6 kt
SSW11 km/h6 kt
S7 km/h4 kt
SSW9 km/h5 kt
SSW9 km/h5 kt
S7 km/h4 kt
SSW7 km/h4 kt
SSW9 km/h5 kt
S7 km/h4 kt
SSW9 km/h5 kt
SSW9 km/h5 kt
Wind EffectOffshoreOffshoreOffshoreOffshoreOffshoreOffshoreOffshoreOffshoreOffshoreGlassyOffshoreOffshoreGlassyGlassyOffshoreGlassyOffshoreOffshore
Entry / Exit
In PocketTide OK ({tide}m)
BackwashTide Caution ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
In PocketTide OK ({tide}m)
High / Low Tide
HI: 02:45 (2.2m)HI: 14:55 (2.2m)
LO: 08:50 (0.2m)LO: 21:05 (0.0m)
HI: 03:20 (2.1m)HI: 15:25 (2.1m)
LO: 09:20 (0.2m)LO: 21:35 (0.1m)
HI: 03:45 (2.1m)HI: 15:50 (2.0m)
LO: 09:50 (0.3m)LO: 22:00 (0.2m)
HI: 04:15 (2.0m)HI: 16:20 (1.9m)
LO: 10:20 (0.4m)LO: 22:30 (0.3m)
HI: 04:45 (1.9m)HI: 16:45 (1.8m)
LO: 10:50 (0.5m)LO: 22:55 (0.4m)
HI: 05:15 (1.8m)HI: 17:15 (1.6m)
LO: 11:20 (0.6m)LO: 23:25 (0.6m)

7-DAY SWELL, PERIOD & WIND DAILY FORECAST

Hoje
2026-11-02
1.3m – 1.8m @14s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
GOOD
Terça
2026-11-03
1.4m – 2.0m @13s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
EPIC
Quarta
2026-11-04
1.7m – 2.3m @13s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
EPIC
Quinta
2026-11-05
1.2m – 1.7m @14s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
GOOD
Sexta
2026-11-06
1.2m – 1.6m @13s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
FAIR
Sábado
2026-11-07
1.5m – 2.1m @13s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
EPIC
Domingo
2026-11-08
1.4m – 1.9m @14s (WNW / NW)
5 kt (glassy)
08:30 – 15:00 (Areia Preta Abrigada)
GOOD

EXPLORE TIDE LABS FOR OTHER SPOTS