If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Senago: The hottest months are usually July and August, with an average temperature of 22°C, while the coldest months are January and December, with an average of 6°C. The rainiest months in Senago are November, May, August and October, with each month seeing an average of 178 mm of rainfall.