So you are 69 and asking about the nightlife... you'll not be frequenting the Bigg Market so you'll be safe enough!
As for the cold... we are only a couple of 100 miles North of that there Landan Taan, so hardly the Arctic Circle. We sold our house to a couple who moved lock/stock from Portsmouth and they said they can't believe they didn't do it sooner, never regretted one minute of it by all accounts.