About Seaham Harbour Marina
We accept visiting boats all year round up to 10 metres length and to a maximum of 1.8 metres draft. NAVIGATION MARKS harbour entrance north breakwater black & white circle lighthouse giving green flash each 10 seconds harbour entrance south breakwater 3 continuous red lights marina entrance 3 vertical red or green lights to port side of gateway, do not enter gateway during 3 red lights

Facilities
COORDINATES
54.83864 N, -1.32995 E
Port Information
Telephone
Berth Sizes
< 10m
Depth at MLW
< 2m
Manoeuvrability
Fair
Channel Marking
Fair
Port of Entry
Yes
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Weather Forecast
Sun
5AM - 9AM
15 March 2026
- S 11 knots increasing to 18 knots. Gusts up to 31 knots.
- Increasing from 3 to 6°C
- S 0.7m at 4s period
- UV Index: 0 - Low
- Cloudy
Sun
9AM - 1PM
15 March 2026
- SW 19 knots decreasing to 15 knots. Gusts up to 34 knots.
- 7°C
- S 0.8m at 4s period
- UV Index: 1 - Low
- Cloudy
Sun
1PM - 5PM
15 March 2026
- W 12–16 knots. Gusts up to 24 knots.
- 6 to 9°C
- W 0.7m at 6s period
- UV Index: 0 - Low
- Chance of showers