1931 Pacific hurricane season

Before the satellite age started in the 1960s, data on east Pacific hurricanes was extremely unreliable.

[1] In the western part of the Gulf of Tehuantepec, a possible tropical cyclone existed on July 10.

This cyclone produced gales, and the lowest reported pressure was 29.39 inHg (99.5 kPa).

[1] In the central Pacific east-southeast of the Hawaiian Islands, a ship encountered a tropical cyclone on August 30 and 31.

[3] This system sank an American steamship called the Colombia (losses unknown).

[3] On land, the area around Santa Rosalía, Baja California Sur was severely devastated.

A merchant ship called Perkins was damaged in the storm, with two people washed overboard.