Here are some links to sites which may be of use to you, more will be added soon

Weather, Tides & Charts

Webcam and Weather Station Sheerness Kent UK :: IOS Sailing Club

Met Office inshore weather forecast

NTSLF | Tidal predictions – high and low water times and heights

Easytide – Tidal predictions for Darnett Ness

Visitmyharbour.com – Nautical Charts and Pilotage, UK Wide Coverage