Almost 60,000 people have fled their homes near the volcano since the government issued a red alert - the highest level of warning - on Friday.
"The people around Gunung Agung must continue to be patient", he said. Since then, the volcano has remained pretty active, with its deep crater occasionally belching smoke and ash.
In statement made by National Disaster Management Agency (BNPB), it was recorded that activity level of volcano, which is at top level of alarm level in about one week, has been recorded.
President Joko "Jokowi" Widodo is set to visit on Tuesday afternoon a number of residents taking shelter in Klungkung, a Bali regency that is hosting the second largest number of evacuees who fled their homes in anticipation of Mount Agung's possible eruption. Detection techniques have improved so we know better how to expect the eruption, and infrastructure was also improved, meaning that more people could evacuate quickly and safely.
The UK, Australia and the USA are among several countries that have issued travel advisories in recent days, warning that volcanic activity on Agung could interfere with travel plans. "Tourists are still going about their activities", she said.
The mountain, 72 kilometres to the northeast of the tourist hotspot of Kuta, is among more than 120 active volcanoes in Indonesia.
"We can meet their daily needs for the next few days", he said.
"There will only be a relatively small number of United Kingdom holidaymakers on the island at this time of year, although Bali is a major tourist destination for the Australian market".
Hundreds of domestic and worldwide flights were disrupted in 2016 when a volcano erupted on Bali's neighbouring Lombok island, sending up columns of ash and debris.
Many Indonesians live near volcanoes because lava flows can make the surrounding soil and land fertile for farming.
Australians are being advised to check with their airline before flying and to follow all authorities and hotel staff instruction if travelling to Bali.