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.
A continuous record of daily temperature and rainfall has been kept at Oxford since 1815. There are also incomplete readings going back to 1740. Sunshine. June is the sunniest month, with 6.6 hours of bright sunshine per day, compared with 1.7 hours/day in December.he total average rainfall here is 642mm per year, whereas Manchester gets 858mm and Belfast is inundated with 1279mm. Kew, London, is slightly drier (608), but the figures for July and August are very similar to those in Oxford, so bedraggled tourists will have to grin and bear it.