when is hurricane season in mexico pacific coast
The 2018 Pacific hurricane season began on May 15 in the Eastern Pacific, and on June 1 in the Central Pacific; they both ended on November 30.
2018 Pacific hurricane season
 The season officially began on May 15 in the Eastern Pacific, and on June 1 in the Central Pacific; they both ended on November 30. 
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2018 Pacific hurricane season [SEP] Introduction
Tropical Storm Vicente simultaneously affected the region just south of where Willa made landfall, causing severe flooding and dozens of landslides. Damage across the basin reached $1.46 billion (2018 USD), while 56 people were killed by the various storms.