Sarh, Chad experiences a hot and dry climate year-round. The hottest months are March to April, with temperatures often reaching up to 42°C, while the coolest months are December and January, still relatively warm with temperatures ranging from 14-39°C. June and July see a slight drop in temperature, but it's still quite warm, averaging around 26°C. September and October also experience high temperatures, but they gradually decrease towards November and December. The variation between day and night temperatures is significant throughout the year, with some months experiencing a wide range of up to 29°C difference.