https://www.hisc.co.uk/sailing/weather/
Live wind reading over main race course area:
https://www.chimet.co.uk/
Most accurate and free-to-use weather forecasting:
https://weather.metoffice.gov.uk/forecast (search South Hayling)
Tide Tables:
https://www.bbc.co.uk/weather/coast-and-sea/tide-tables/8/68