 From the , 74 or 86.0% were Roman Catholic, while 1 or 1.2% belonged to the Swiss Reformed Church.There are 6 individuals (or about 6.98% of the population) who belong to another church (not listed on the census), and 5 individuals (or about 5.81% of the population) did not answer the question.Sonogno has an average of 108.6 days of rain or snow per year and on average receives of precipitation.