Bali braces for extreme weather as heavy rain triggers storm and landslide warnings: What travellers need to know

Heavy rain clouds loom over Bali as authorities issue flood, storm and landslide warnings, urging travellers to stay alert and plan carefully.

Travellers heading to Bali are being urged to stay alert as the island prepares for another spell of extreme weather, with authorities warning of flooding, strong winds, rough seas and travel disruptions through mid-December. The advisory comes just weeks after devastating storms hit other parts of Indonesia.

Indonesia’s Meteorology, Climatology and Geophysics Agency (BMKG) has issued an extreme weather alert for Bali Province from December 11 to 18, 2025, following heavy rainfall that has already caused flooding in parts of Legian, a popular west-coast tourist area. Several regions experienced severe flooding on December 14, prompting renewed warnings for both residents and visitors.

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Officials say the current conditions are part of one of the most intense rainy seasons in recent memory, following major floods in Bali earlier this year and widespread damage caused by Tropical Cyclone Senyar, which recently battered parts of Sumatra.

According to the Bali Meteorology, Climatology and Geophysics Agency (BBMKG), the extreme weather is linked to cyclone seed 93S, which formed in the South Indian Ocean near West Nusa Tenggara on December 11. The system, combined with active atmospheric waves and wind convergence patterns, has intensified rain cloud formation over Bali.

These conditions significantly increase the risk of flooding, flash floods, fallen trees, landslides, strong winds and rough sea conditions across the island.

BBMKG forecasts moderate to heavy rainfall across several key regions, including: Badung, Denpasar, Tabanan, Bangli, Gianyar, Karangasem, Parts of Jembrana, Buleleng and Klungkung

Strong winds are also expected in Badung, Denpasar, Tabanan, Jembrana, Bangli, Gianyar, Klungkung and Karangasem. Sea conditions are forecast to worsen, with waves reaching 1.25 to 2.5 metres in southern Bali waters, including the Bali Strait and Lombok Strait.

Popular tourist hubs that may be impacted include Kuta, Seminyak, Uluwatu, the wider Tabanan region, and areas surrounding Denpasar International Airport.

Travellers are being advised to prepare for airport delays of one to two hours, potential inter-island ferry cancellations, and traffic congestion due to waterlogged roads. Authorities recommend avoiding flooded streets, outdoor activities and coastal areas during severe weather.

Tourists are also urged to use cars or taxis instead of scooters, particularly during heavy rain and strong winds, and to exercise extra caution in mountainous or cliff-side areas prone to landslides.

BBMKG has advised residents and travellers to closely monitor official weather updates through its website and social media channels. Visitors should keep emergency contact numbers handy and follow instructions from local authorities.

Travellers are also reminded to check their travel insurance policies before arrival, ensuring coverage includes natural disasters, extreme weather events and emergency evacuation if required.

As Bali enters a volatile weather phase, staying informed and flexible with travel plans will be key to navigating the island safely over the coming days.