Airplane crash-lands into Hudson River; all aboard reported safe. Story Highlights. NEW: Flight's pilot, C.B. Sullenberger, emerges as hero of miracle on the Hudson. All 155 passengers and crew aboard US Airways Flight 1549 alive, FAA says.
Summer can be very pleasant with temperatures averaging 18Â°C (64Â°F) and often into the low 20s. In recent years London has experienced heatwaves with temperatures well above 30Â°C (86Â°F). This is an ideal time to visit London's parks and open spaces or have a go at swimming and boating in London.
Days of Hot Weather in London. London usually has ten days a year with temperatures in the 30s Celsius. Just once every two or three years, a day heats up above 35 degrees Celsius (95 Â°F). The 30-degree weather can show up here anytime from June to September, and very rarely as early as May. Days per month in London over 10, 20 or 30 Â°C.