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
Thu
5AM - 9AM
14 May 2026
- NW 8 knots increasing to 11 knots. Gusts up to 22 knots.
- Increasing from 2 to 8°C
- N 0.7m at 4s period
- UV Index: 0 - Low
- Sunny
Thu
9AM - 1PM
14 May 2026
- N 9–11 knots.
- 8 to 11°C
- N 0.8m at 4s period
- UV Index: 3 - Moderate
- Mostly fine
Thu
1PM - 5PM
14 May 2026
- N 10 knots increasing to 15 knots. Gusts up to 23 knots.
- 9°C
- N 0.9m at 5s period
- UV Index: 3 - Moderate
- Chance of showers