When the Rains Unleash: Bali’s Flooding Crisis and Hidden Indoor Risks

• Bali has faced some of its worst flooding in years, with torrential rains (up to 385 mm in 24 hours) causing deaths, evacuations, and major property damage.
  
• After floodwaters recede, lingering dampness can persist for weeks, raising humidity above safe levels (>60–70%) and leading to mold, mildew, and health risks.
• Jakarta and other parts of Indonesia are also seeing sporadic heavy rains and earlier-than-usual wet season patterns, reminding us that no region is immune.
• Stadler Form’s Albert and Lukas dehumidifiers offer powerful moisture removal, large tanks, precise humidity control, and energy efficiency—helping households across Indonesia prepare for “rainy days.”

Heavy downpours have pounded Bali in recent days — perhaps some of the worst in a decade. Torrential rains in Denpasar and across six of Bali’s eight regions triggered flash floods, landslides, collapsed buildings, and widespread displacement. At least 14 people have died, with more missing, and over 500 people evacuated to emergency shelters in schools, mosques, or community centers. 

Rainfall in some areas exceeded 385 mm in 24 hours, overwhelming drainage systems and rivers that quickly overflowed their banks. Streets, homes, and small businesses were submerged; infrastructure like roads and bridges was severely damaged.

More Than a Wet Mess: Humidity, Health & Home Threats

Once floodwaters recede, the tedious clean-up begins. For many households, especially those directly inundated, this is just the start. Damp walls, soaked floors, and saturated furnishings can remain wet long after the visible water is gone. This lingering dampness may persist for weeks, bringing with it hygiene and health problems. Musty odors, mildew, and mold can establish themselves if moisture is not managed, creating conditions that are both uncomfortable and unhealthy.

According to building and health studies, relative humidity indoors above 60–70% creates an environment favorable to fungal and mold growth. Mold, mildew, and even bacterial colonies thrive in damp conditions; they can release spores or allergens, worsen asthma or respiratory issues, and damage household materials.

For those who keep artworks, musical instruments, wooden furniture, or books, high humidity is especially damaging. It warps wood, peels varnish and paint, distorts strings and instrument bodies, and leaves visible fungal stains that are difficult to reverse.

A Dry Solution Inside: Stadler Form Dehumidifiers

While it may be impossible to stop the heavy rains or flooding, and outdoor humidity is difficult to control, there is a way to reclaim healthier indoor spaces after a storm. Stadler Form’s award-winning dehumidifiers — Albert and Lukas — are designed precisely for these conditions.

By expediting drying, dehumidifiers shorten the time dampness lingers in walls, floors, and furnishings. This helps prevent secondary damage and lowers the likelihood of mold infestations taking hold after the flood.

Jakarta & Elsewhere: Rainy Days Are Coming

While Bali has borne the brunt of the worst flooding recently, Jakarta and many islands in the Java region are not fully spared. Jakarta has had sporadic heavy rains and flooding events. In March 2025, for instance, severe rainfall in surrounding areas (such as Bogor, Bekasi, Tangerang) led to floodwaters entering parts of Jakarta, displacement of thousands, road blockages, and damage to homes.

Meteorologists further warn that the wet season in Indonesia is arriving earlier than usual in 2025, expanding across Java, Bali, Sumatra, and other islands. Peak rainfall is forecasted for different regions at different times, but generally November-February are expected to be the most intense months.

Why Act Sooner Rather Than Later

• Health: Prolonged dampness fosters respiratory irritation, allergies, asthma triggers, and infections.
• Property: Furniture, instruments, artworks, and collections can be permanently damaged by mold and excess moisture.
• Comfort: Sticky air, musty smells, and poor sleep quality follow when moisture lingers indoors.

Conclusion

The recent flooding in Bali is a stark reminder that extreme weather is not just a headline — it impacts air, health, homes, and belongings. Whether you are in Bali, Jakarta, or elsewhere in Indonesia, investing in a quality dehumidifier may be a wise decision to anticipate those rainy days. With models like Stadler Form’s Albert and Lukas, you can dry out indoor spaces faster, maintain relative humidity at safe levels, protect valuables, and safeguard your health — even when the skies open up.