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
Tue
5AM - 9AM
21 July 2026
- NW 4–6 knots veering N 4-6 knots.
- Increasing from 12 to 16°C
- NE 0.7m at 6s period
- UV Index: 0 - Low
- Partly cloudy
Tue
9AM - 1PM
21 July 2026
- N 5 knots increasing to E 8 knots.
- 16 to 19°C
- NE 0.6m at 6s period
- UV Index: 5 - Moderate
- Partly cloudy
Tue
1PM - 5PM
21 July 2026
- E 7–10 knots.
- 17 to 20°C
- NE 0.6m at 5s period
- UV Index: 5 - Moderate
- Mostly fine