Under the Köppen climate classification system, Manila has a tropical savanna climate (Köppen ''Aw''), bordering closely on a tropical monsoon climate (Köppen ''Am''). Together with the rest of the Philippines, Manila lies entirely within the tropics. Its proximity to the equator means that temperatures are hot year-round especially during the daytime, rarely going below  or above . Temperature extremes have ranged from  on January 11, 1914, to  on May 7, 1915.