The Solomon Islands Meteorological service has issued a tropical cyclone watch advisory for Rennell and Bellona, Makira and Guadalcanal provinces.
Tropical cyclone Solo, a category one system, is 394 kilometres south of Rennell island, moving south-southeast at 16 kilometres an hour and intensifying.
The met service says on this current movement, the cyclone will start to move away from Southern Solomon islands.
It says expect winds of 27 to 45 kilometres an hour reaching 50 kilometres at times over Rennell and Bellona, South Makira and South Guadalcanal but winds are expected to ease within the next 12 to 24 hours.
The met service says people should take precautionary measures as bad weather associated with the tropical cyclone poses threats to lives and properties.