Physics and Chemistry. Diffusion is the movement of particles from an area of high concentration to an area of low concentration. Diffusion is not to be confused with osmosis, which is the movement of water through a semi-permeable membrane. However, osmosis is a special case of diffusion.
Avignon: Annual Weather Averages. July is the hottest month in Avignon with an average temperature of 24Â°C (75Â°F) and the coldest is January at 6Â°C (43Â°F) with the most daily sunshine hours at 13 in July.The wettest month is September with an average of 65.8mm of rain.vignon: Annual Weather Averages. July is the hottest month in Avignon with an average temperature of 24Â°C (75Â°F) and the coldest is January at 6Â°C (43Â°F) with the most daily sunshine hours at 13 in July.
This report describes the typical weather at the Avignon Caumont Airport (Avignon, France) weather station over the course of an average September. It is based on the historical records from 2006 to 2012.Earlier records are either unavailable or unreliable.he air is driest around September 1, at which time the relative humidity drops below 42% (comfortable) three days out of four; it is most humid around September 30, rising above 87% (very humid) three days out of four.