Sines marine weather forecast
Sines (PTSIE) is a port in Portugal at 37°57.0′N 8°52.0′W. Today (Nov 3): N wind 1–4 kn, waves 0.8–1.3 m, from the ECMWF IFS run 2026-11-03 00z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 37°57.0′N 8°52.0′W |
|---|
| UN/LOCODE | PTSIE |
|---|
| Harbor size | Medium |
|---|
| Harbor type | Coastal breakwater harbor |
|---|
| Shelter | Good |
|---|
| Anchorage depth | 23 m |
|---|
| Tide range | 4 m |
|---|
| Pilotage | Compulsory |
|---|
| Time zone | Europe/Lisbon |
|---|
Facilities & services (NGA World Port Index)| Tugs | Assistance and salvage available |
|---|
| Supplies | Fuel oil, diesel, water, provisions |
|---|
| Repairs | Limited |
|---|
| Medical facilities | Available |
|---|
10-day marine forecast — Sines
| Date | Wind | Gusts | Waves |
|---|
| N 1–4 kn | 12 kn | 0.8–1.3 m |
|---|
| NNE 4–7 kn | 13 kn | 0.8–0.9 m |
|---|
| WNW 0–4 kn | 10 kn | 0.9–1.0 m |
|---|
| ENE 1–8 kn | 16 kn | 0.9–1.0 m |
|---|
| SSE 4–8 kn | 10 kn | 0.8–0.9 m |
|---|
| SSE 7–13 kn | 16 kn | 1.1–2.0 m |
|---|
| SSE 13–13 kn | 17 kn | 2.3–2.3 m |
|---|
| SSW 11–11 kn | 24 kn | 3.7–3.7 m |
|---|
| SSW 8–8 kn | 19 kn | 2.9–2.9 m |
|---|
| SSW 5–5 kn | 10 kn | 2.3–2.3 m |
|---|
Forecast from the ECMWF IFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
What to watch in the forecast
Across the loaded 10-day outlook, the strongest daily modeled wind reaches 13 kn on Nov 9. The highest modeled significant wave height is 3.7 m on Nov 10. Compare the dated model run with official forecasts and warnings before departure.
Frequently asked
How is the weather at Sines right now?
As of the ECMWF IFS run 2026-11-03 00z: N wind 1–4 kn, waves 0.8–1.3 m. The 10-day outlook is in the forecast table on this page and updates with each model cycle.
How big is the harbor at Sines?
Sines is classed as a medium harbor (coastal breakwater harbor), with good shelter in the NGA World Port Index.
How deep is the approach to Sines?
Per the NGA World Port Index, anchorage depths run about 23 m. Verify against current official charts before entry.