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.
Auvergne: Weather Forecast. The warmest day over the next 7 days in Auvergne is forecast to be 22nd April at 16Â°C (61Â°F) and the warmest night on 23rd April at 4Â°C (39Â°F). The average temperature over the next 7 days is forecast to be 13Â°C (55Â°F) and there will be 6 days of sunshine . The average for April is 0Â°C (0Â°F) in Auvergne.