Wales is following the rest of the UK by taking action to move Nigeria onto the red list for travel from 0400 Monday 6th December.
This follows the identification of a new coronavirus variant, which may be capable of evading the protection provided by vaccines.
Travellers from red list countries will not be permitted to enter Wales but must enter through a port of entry in England and go into a managed quarantine facility for 10 days. Whilst they are in quarantine they must also take post-arrival PCR tests on day 2 and day 8.
Eluned Morgan MS, Minister for Health and Social Services confirmed the action which will be taken in Wales and added: "We are also reintroducing a 48-hour Pre Departure Test requirement for all travellers. This means that travellers will need to have a negative PCR or LFD test as close as possible to their departure time before they can travel."