Holidays & Closures

All City of San Mateo Libraries will be closed on the following days:

2026
  • Thursday, January 1: New Year's Day
  • Sunday, January 18: Sunday preceding Martin Luther King, Jr. Day**
  • Monday, January 19: Martin Luther King Jr. Day
  • Sunday, February 15: Sunday preceding Presidents' Day**
  • Monday, February 16: Presidents' Day
  • Sunday, May 24: Sunday preceding Memorial Day**
  • Monday, May 25: Memorial Day
  • Friday, June 19: Juneteenth 
  • Friday, July 3: Day preceding Independence Day***
  • Saturday, July 4: Independence Day
  • Sunday, September 6: Sunday preceding Labor Day**
  • Monday, September 7: Labor Day
  • Monday, October 12: Staff Development Day*
  • Wednesday, November 11: Veterans Day
  • Wednesday, November 25: Day before Thanksgiving - closing at 5pm
  • Thursday, November 26: Thanksgiving Day
  • Friday, November 27: Day after Thanksgiving
  • Thursday, December 24: Christmas Eve
  • Friday, December 25: Christmas Day
  • Thursday, December 31: New Year's Eve

*Libraries will be closed for in-service training of Library employees.

**Libraries will be closed on the preceding Sundays for the following holidays:

  • Martin Luther King, Jr. Day
  • Presidents' Day
  • Memorial Day
  • Labor Day

***Libraries will be closed on the preceding Friday for the Independence Day holiday