The city experiences many microclimates from district to district because of its location in the Sanaʽa basin and uneven elevations throughout the city. Summers are warm and can cool rapidly at night, especially after rainfall. Sanaʽa receives half of its annual rainfall during July and August. Rainfall amounts vary from year to year; some years could see  of rainfall, while others can barely get . High temperatures have increased slightly during the summer over the past few years, but low temperatures and winter temperatures have dramatically fallen over the same period.