1927 Pacific typhoon season

In 1927, there were 27 tropical cyclones observed in the western Pacific Ocean, north of the equator and west of the 180th meridian. Many of these storms affected the Philippines, China, and Japan, collectively leaving 15,952 fatalities. The strongest storm of the year also had the lowest barometric pressure recorded in a tropical cyclone worldwide at the time. On August 18, the Dutch steamship Sapoeroea recorded a barometric pressure of 886.7 millibar (26.185 inches of mercury) about 740 kilometres (460 miles) east of Luzon. This typhoon later struck near Hong Kong, where it halted transportation, wrecked buildings, and killed 15 people.

The first storm of the year originated near the Caroline Islands on February 12, which capsized the freighter Elkton and caused the loss of its crew of 36 people. Storms were observed in each subsequent month of the year. In May, a typhoon wrecked the passenger ferry SS Negros near the Philippine province of Romblon, killing 108 people. A typhoon in July killed around 10,000 people in China, mostly related to mountain flooding near Zhangzhou, leaving around 100,000 people homeless. A month later, another landfalling typhoon in China killed about 5,000 people and damaged nearly 20,000 houses. In September, an intense typhoon moved through Japan around the same time that an undersea earthquake affected the region; the concurrent disasters killed about 600 people, after a 3 metre (10 foot) tsunami washed away boats and houses along the coast. Another Chinese typhoon in September killed 5,000 people. The final storm of the year dissipated on December 19 to the west of the Philippines.