Teesport to Portland Harbour — sea route & marine weather
The sea route from Teesport (GBTEE) to Portland Harbour (GBPRH) is about 432 nm — about 43 hours at 10 kn. Along the route today (Aug 3): ESE wind 1–13 kn, waves 0.6–1.2 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 432 nm |
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| Passage time at 10 kn | about 43 hours |
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| Great-circle distance | 249 nm |
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| Teesport | 54°39.0′N 1°8.0′W |
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| Portland Harbour | 50°35.0′N 2°26.0′W |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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10-day marine forecast — along the route
| Date | Wind | Gusts | Waves |
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| ESE 1–13 kn | 25 kn | 0.6–1.2 m |
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| SSE 3–19 kn | 24 kn | 0.4–1.3 m |
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| SW 4–21 kn | 39 kn | 0.8–2.0 m |
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| WNW 5–20 kn | 30 kn | 0.8–2.0 m |
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| WSW 3–11 kn | 13 kn | 0.3–1.6 m |
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| SSW 2–13 kn | 16 kn | 0.2–0.9 m |
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| SW 3–14 kn | 18 kn | 0.2–1.0 m |
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| WSW 7–13 kn | 24 kn | 0.6–1.0 m |
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| SSW 5–11 kn | 15 kn | 0.4–0.5 m |
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| SW 1–9 kn | 19 kn | 0.3–0.7 m |
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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 far is it from Teesport to Portland Harbour by sea?
The water route is 432 nm (800 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Portland Harbour to Teesport.
How long does the passage from Teesport to Portland Harbour take?
about 43 hours at a 10 kn cruise. Scale by your own speed: at half the speed it takes about twice as long. The planner on this page recalculates for your vessel and live weather.
What is the weather between Teesport and Portland Harbour today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: ESE wind 1–13 kn, waves 0.6–1.2 m. The day-by-day table on this page covers the next 10 days.