Tides

B.B.C. Tides
&
7 Day Tidal forecasting

Admiralty
EasyTide
7 Day Prediction

UK Hydrographic Office
Provides a range of oceanographic products & services.

W.X. Tide32
Free easy to use tidal prediction software for Windows.

Weather

Met. Office
for
Surface Pressure Forecast & Charts

Met. Office
for
UK Inshore Forecasts

Met. Office
for
Shipping Forecast & Gale Warnings

B.B.C. Weather Centre
Online, inshore & shipping forecasting, pressure charts and tide tables

X.C. Weather
Up to date observations from around the UK. Can also be accessed by WAP phone.

Data Buoys
Recent marine data from data buoys supplied by NDBC