Background
Climate and weather
Once you get to Newcastle you are clearly not in the South anymore. Northumbria has the largest reservoir in England, and the reason it is overflowing is thanks to the rain. In the winter Newcastle is rainy, and the proximity to the coast means that it is windy too. Not intolerably so, and actually a bit nicer as a rule than Scotland, but you will lucky not to have a day when you don't stagger back to your accomodation shivering and soaked, so don't spend December up here in a tent.
With that warning in mind, don't forget that the summer is not too bad at all, and nobody even wears a coat to go out, so it surely can't be that cold. Can it?
Landscape and scenery
Newcastle city centre is pretty much urban sprawl for a couple of miles, with nothing but the Tyne to break up the buildings. Not far to the north of town, just past St. James Park (home of Newcastle United Footbal Club) the park starts. The typical laid-out urban park here basically continues as green open space through Jesmond Dene and Nunsmoor to the edge of town.
If you want to see some real scenery just head north a little way into Northumbria. The beautiful coastline here stretches from Whitley Bay past the mystical (and mist wrapped) island of Lindisfarne, and up towards the pleasant border town of Berwick-on-Tweed. Inland, rolling hills provide lovely views as you head to pretty market towns such as Alnwick.