Chornomorsk to Constanta — sea route & marine weather
The sea route from Chornomorsk (UAILK) to Constanta (ROCND) is about 167 nm — about 17 hours at 10 kn. Along the route today (Aug 3): N wind 6–14 kn, waves 0.4–0.8 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 167 nm |
|---|
| Passage time at 10 kn | about 17 hours |
|---|
| Great-circle distance | 154 nm |
|---|
| Chornomorsk | 46°19.0′N 30°40.0′E |
|---|
| Constanta | 44°11.0′N 28°39.0′E |
|---|
| Reference vessel | 4.5 m draft, 10 kn cruise |
|---|
10-day marine forecast — along the route
| Date | Wind | Gusts | Waves |
|---|
| N 6–14 kn | 18 kn | 0.4–0.8 m |
|---|
| N 6–14 kn | 19 kn | 0.3–0.6 m |
|---|
| N 6–9 kn | 11 kn | 0.2–0.4 m |
|---|
| N 1–11 kn | 14 kn | 0.1–0.5 m |
|---|
| NNE 5–11 kn | 14 kn | 0.2–0.4 m |
|---|
| N 10–15 kn | 19 kn | 0.3–0.8 m |
|---|
| NNW 12–17 kn | 21 kn | 0.7–1.1 m |
|---|
| NW 10–15 kn | 24 kn | 0.6–1.3 m |
|---|
| NNE 10–16 kn | 20 kn | 0.6–0.9 m |
|---|
| NNE 2–11 kn | 19 kn | 0.3–0.8 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 far is it from Chornomorsk to Constanta by sea?
The water route is 167 nm (309 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Constanta to Chornomorsk.
How long does the passage from Chornomorsk to Constanta take?
about 17 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 Chornomorsk and Constanta today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: N wind 6–14 kn, waves 0.4–0.8 m. The day-by-day table on this page covers the next 10 days.