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.
Avranches: Weather Forecast. The warmest day over the next 7 days in Avranches is forecast to be 4th September at 22Â°C (72Â°F) and the warmest night on 4th September at 16Â°C (61Â°F). The average temperature over the next 7 days is forecast to be 20Â°C (68Â°F) . The average for September is 0Â°C (0Â°F) in Avranches. 1  Fri 1 Sep 18Â°C (64Â°F) NNW 9mph. 2  Sat 2 Sep 20Â°C (68Â°F) NW 8mph. 3  Sun 3 Sep 18Â°C (64Â°F) S 9mph. 4  Mon 4 Sep 22Â°C (72Â°F) SSE 8mph. 5  Tue 5 Sep 21Â°C (70Â°F) S 7mph. 6  Wed 6 Sep 21Â°C (70Â°F) SSE 6mph. 7  Thu 7 Sep 20Â°C (68Â°F) WSW 11mph.