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Surf Forecasts:
Comporta surfForecast / Alentejo / Portugal
48hr Weather and Surf, issued 6 am Thursday 18 Sep 2025 WEST
How big are the waves at Comporta today?
The current surf forecast for Comporta at 9AM is: 0.6m 13s primary swell from a West-northwest direction and 0.6m 9s secondary swell from a Northwest direction (forecast issued at 06:00am September 18). The wind direction is predicted to be cross-offshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 2ft (0.6m) | 13s |
| Afternoon (18 Sep) | 3ft (0.9m) | 12s |
| Evening (18 Sep) | 3.5ft (1.0m) | 11s |
Table - waves today at Comporta. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 13 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 65 | 94 | 106 | 251 | 285 | 251 | 247 | 238 | 214 | 206 | 194 | 190 | 186 | 151 | 137 | 135 | 121 | 108 | 82 | 80 | 77 | 143 | 53 | 51 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | glass | glass | on | cross- on | cross- on | cross | glass | glass | cross- off | cross- on | on | cross- on | cross- on | cross- on | glass | glass | glass | on | on | cross- on | cross | cross |
High Tide / height (m) | 1:13PM 2.56 | 1:45AM 2.42 | 1:57PM 2.72 | 2:23AM 2.56 | 2:34PM 2.84 | |||||||||||||||||||
Low Tide / height (m) | 7:02AM 0.67 | 7:39PM 0.40 | 7:46AM 0.49 | 8:17PM 0.26 | 8:23AM 0.34 | 8:50PM 0.17 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | - | 7:18 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - | - | - | 7:20 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:38 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:36 | - | - |
 |  |  |  |  | | | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 24 | 25 | 28 | 27 | 27 | 25 | 23 | 23 | 22 | 24 | 26 | 25 | 22 | 21 | 20 | 19 | 19 | 20 | 24 | 25 | 23 | 17 | 16 |
| Feels °C (?) | 21 | 21 | 23 | 26 | 24 | 24 | 22 | 21 | 22 | 22 | 24 | 25 | 24 | 23 | 23 | 22 | 21 | 21 | 22 | 23 | 23 | 20 | 13 | 12 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Alentejo
Continuing clean conditions at Comporta (calm at Quinta Do Conde wx 30 km from Comporta). 0.8m 9s swell from the NW with a 0.6m 13s groundswell from the WNW and a 0.5m 17s long period groundswell from the SW. 3 swells combining to make bigger set waves.
30 km away, 51 min ago
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