Port Severn — marine weather & port guide
Port Severn is a port in Canada at 44°48.0′N 79°43.0′W. Today (Aug 3): NNW wind 8–9 kn, waves 0.3–0.5 m, from the ECMWF IFS run 2026-08-03 12z. The live chart on this page shows current conditions and plans weather-optimized departures from this harbor.
Port facts (NGA World Port Index)| Position | 44°48.0′N 79°43.0′W |
|---|
| Harbor size | Very small |
|---|
| Harbor type | River natural harbor |
|---|
| Shelter | Excellent |
|---|
| Channel depth | 2 m |
|---|
| Anchorage depth | 2 m |
|---|
| Tide range | 0 m |
|---|
| Pilotage | Compulsory |
|---|
| Time zone | America/Toronto |
|---|
10-day marine forecast — Port Severn
| Date | Wind | Gusts | Waves |
|---|
| NNW 8–9 kn | 22 kn | 0.3–0.5 m |
|---|
| WSW 5–8 kn | 19 kn | 0.4–0.6 m |
|---|
| SSW 5–8 kn | 20 kn | 0.5–0.8 m |
|---|
| SSW 3–6 kn | 14 kn | 0.1–0.4 m |
|---|
| WSW 2–5 kn | 9 kn | 0.1–0.2 m |
|---|
| WSW 1–2 kn | 3 kn | 0.1–0.1 m |
|---|
| WSW 4–6 kn | 8 kn | 0.3–0.5 m |
|---|
| SSW 15–15 kn | 33 kn | 1.3–1.3 m |
|---|
| NNW 3–3 kn | 8 kn | 0.4–0.4 m |
|---|
| N 3–3 kn | 9 kn | 0.4–0.4 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.
Frequently asked
How is the weather at Port Severn right now?
As of the ECMWF IFS run 2026-08-03 12z: NNW wind 8–9 kn, waves 0.3–0.5 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 Port Severn?
Port Severn is classed as a very small harbor (river natural harbor), with excellent shelter in the NGA World Port Index.
How deep is the approach to Port Severn?
Per the NGA World Port Index, the entrance channel carries about 2 m and anchorage depths run about 2 m. Verify against current official charts before entry.
What restricts entry to Port Severn?
Entry is affected by ice, overhead clearance limits. Check the live forecast on this page and official notices before approach.