Four Canary Islands, including Tenerife and Gran Canaria, were made aware of a “red light” from Saturday due to new coronavirus outbreaks.
Destinations popular with British tourists are facing new restrictions.
On the islands with a red light, mass gatherings of more than 10 people are no longer permitted from Saturday onwards.
A curfew at midnight is imposed in hotels, restaurants and terraces.
No new customers will be admitted after 11 p.m. and non-work-related day centers will have to be closed.
The red alert affects the islands of Tenerife and Gran Canaria for at least 15 days, La Gomera for up to 15 days and Fuerteventura for a week.
The Canarian health chiefs announced the new cases on Friday evening in which the alert level for the islands’ coronavirus was raised.
A spokesman said the outbreaks mainly hit the islands of Gran Canaria and Fuerteventura.
Officials confirmed that 289 new cases of Covid-19 had been recorded in the past 24 hours, bringing the accumulated number to 6,754 active cases in the islands.
A government spokesman said it was a “significant” increase that prompted authorities in travel destinations to take action.
The Canarian government had previously warned that it would not hesitate to take tough measures to contain the spread of the coronavirus, as it wants to become one of the safest places in Spain for Brits to vacation.
Lanzarote will drop from a red to a green light on Saturday, lifting restrictions.
La Palma and El Hierro remain green, added the government spokesman.
Despite today’s increase, the Canary Islands have reduced their rate per 100,000 inhabitants from 67.34 seven days ago and 106.9 three weeks ago to 53.2 cases.
The islands are the third lowest coronavirus rate after the mainland regions of Valencia and Galicia.
Once cases are reduced to acceptable levels, the government is hoping the UK will allow British tourists to visit the islands without going into quarantine.
Canarian officials said they would prefer UK tourists to be screened for coronavirus on arrival and departure at airports.
Health officials say the red light comes into effect when there is at least one community on an island that has exceeded a rate of 100 active cases per 100,000 residents in the past seven days.
Authorities can also order a red alert if an area has seen an increase of 10% or more in the past seven days over the past two weeks.
Gran Canaria currently has 155 new cases and 4,648 active cases, and Tenerife has 83 new and 1,769 active cases.
Lanzarote has 23 new and 191 active cases, Fuerteventura 22 new cases and 122 active, La Palma three new cases and four active; El Hierro no new cases and La Gomera three new cases with 20 active ones.
A 65-year-old man in Tenerife and a 40-year-old man in Lanzarote are said to have died on Friday.