1940
- January 5
- First echelon of Canterbury troops for World War II leave Lyttelton on "Dunera" and "Sobieski".
- April
- H.S. Feast begins 21 years as Town Clerk.
- May 18
- Harewood Airport officially opens. It was soon to be taken over by the RNZAF for the duration of the war.
- May 24
- Centennial music festival presents 10 days of music to large audiences. This was the New Zealand Centennial. For Christchurch Centennial see 1950.
- September 1
- New Zealand Railways railcar sets a speed record of 125 kilometres per hour (78 miles per hour) near Rolleston. This is still the highest speed officially acknowledged on the New Zealand rail system.
- November 25
- "Holmwood", en route from the Chathams to Lyttelton, sunk by German raiders. Passengers and crew were taken aboard the German ships, and eventually made their way home 2 months later.