As a general rule, arrive at the airport no later than two hours before your domestic flight is scheduled to depart. This is somewhat later than the typical suggestion of three hours for an international flight.
Oxford: Annual Weather Averages. July is the hottest month in Oxford with an average temperature of 16Â°C (61Â°F) and the coldest is January at 4Â°C (39Â°F) with the most daily sunshine hours at 9 in June.
Average Temperatures in London, England, Uk. The annual average temperature in London, England, Uk is quite mild at 10.4 degrees Celsius (50.8 degrees Fahrenheit). The variation of mean monthly temperatures is 13.5 C (24.3F) which is a low range. There is a range/ variation of diurnal average temperatures of 6.8 C (12.3 F).