The season officially ran from November 1, 1977, to April 30, 1978.

Cyclone Fleur passed just east of Mauritius on January 20, producing wind gusts of 145 km/h (90 mph), which damaged crops.

Heavy rainfall occurred on neighboring Réunion, reaching 442 mm (17.4 in) at Foc Foc.

[4] On March 7, Kiki reformed near Mauritius and latter passed just southeast of Réunion.

Rainfall reached 275.5 mm (10.85 in), which flooded coastal roads, damaged bridges, and killed two people.