| 1 | Saturday, January 1, 1938 |
New Year's Day |
| 2 | Tuesday, February 22, 1938 |
Washington's Birthday |
| Friday, March 25, 1938 |
Prince Jonah Kuhio Kalanianaole Day (observance) |
| 3 | Saturday, March 26, 1938 |
Prince Jonah Kuhio Kalanianaole Day |
| Friday, April 15, 1938 |
Good Friday/Emancipation Day (observance) |
| 4 | Monday, May 30, 1938 |
Memorial Day |
| Friday, June 10, 1938 |
King Kamehameha I Day (observance) |
| 5 | Saturday, June 11, 1938 |
King Kamehameha I Day |
| 6 | Monday, July 4, 1938 |
Independence Day |
| 7 | Friday, August 19, 1938 |
Statehood Day |
| 8 | Monday, September 5, 1938 |
Labor Day |
| 9 | Tuesday, November 8, 1938 |
Election Day |
| 10 | Friday, November 11, 1938 |
Armistice Day |
| 11 | Thursday, November 24, 1938 |
Thanksgiving |
| 12 | Sunday, December 25, 1938 |
Christmas |
| Monday, December 26, 1938 |
Christmas (observance) |