Here are a few useful links to local weather information:

XCWeather my favourite.

Langstone Harbour Board Weather Station

Windguru for Hayling Island  giving forecast for wind speed, direction, temperature and wave height for Hayling Island.

Live weather reports from Chichester Harbour entrance: CHIMET


Tides at Southsea Marina including access times

Portsmouth tides using Tide Times. You can select more local marks on the page such as Langstone Harbour entrance

UKHO Tidal Prediction for Portsmouth (the UKHO site may need a moment or two to load)

Download a document showing the tidal streams at each stage of the tide in the Eastern Solent area: Tidal Streams

Water temperatures go from a low of 5 degrees Centigrade in Winter to a high of nearly 20 degrees in Summer. The temperature profile lags behind the air temperature, as water stays warmer for longer which is why the water feels warm well into November and summer species stay on. Here is a chart based in readings taken at midday on the first day of each month in 2010, from the data archives available from the Chichester Bar weather station:

Solent water temperature chart


Sunrise and Sunset

Here’s an excellent site for detailed predictions of sunrise, sunset and light levels.

Portsmouth Sunrise and Sunset