Weather
London
London is a year-round tourist center. Your best chance of good weather is, of course, at the height of summer in July and August, but there’s certainly no guarantee of sun even in those months—plus it’s when you can expect the biggest crowds and highest prices.
A typical London-area weather forecast for a summer day predicts “scattered clouds with sunny periods and showers, possibly heavy at times.” Summer temperatures seldom rise above 78 F (25 C) nor drop below 35 F (2 C) in winter. London, being in one of the mildest parts of the country, can be very pleasant in the spring and fall. Yes, it rains, but you’ll rarely get a true downpour. Rains are heaviest in November, when the city averages 2.5 inches.
Few of its attractions close or significantly reduce their opening hours in winter.