Gerokgak Records an Extended Dry Spell as Bali Watches Weather Transition

SINGARAJA, Buleleng - September 29, 2026 - The Climatology Station of the Meteorology, Climatology, and Geophysics Agency (BMKG Bali) has formally placed the sub-district of Gerokgak in western Buleleng Regency under "Extreme Drought Alert" status after meteorological monitoring confirmed that the region has recorded more than 60 consecutive days without measurable precipitation (Hari Tanpa Hujan / HTH).

Situated along Bali's northern coastline between West Bali National Park and the port of Celukan Bawang, Gerokgak represents the island’s most arid geographical territory.

The prolonged meteorological dry spell is a direct consequence of the region's position within the topographical rain shadow cast by Bali's central volcanic mountain ridge - comprising Mount Batukaru, Mount Lesung, and Mount Bratan - which effectively intercepts moisture-laden southern trade winds before they can reach the northern coastal plains.

The acute lack of rainfall has resulted in steadily declining water retention levels across local irrigation reservoirs, forced agricultural water rationing for dryland farming communities, and sharply heightened wildfire vulnerabilities across coastal savanna grasslands and protected monsoon forest reserves.

Shrinking reservoir reserves and agricultural mitigation

Field hydrological measurements conducted by the Bali-Penida River Basin Management Office (BWS Bali-Penida) indicate that water reserves at the Gerokgak Dam - the sub-district's primary surface water retention facility - have dropped to approximately 28 percent of effective operational capacity.

The diminishing water volume has forced the local irrigation management committee to prioritize municipal drinking water supplies and livestock hydration, instituting strict rotational water rationing for downstream subak agricultural lands.

Farmers throughout Gerokgak’s agricultural villages - including Pejarakan, Sumberkima, Banyupoh, and Sanggalangit - have adjusted cultivation cycles, temporarily suspending water-intensive horticultural crops in favor of drought-tolerant legumes, corn, and dryland cassava.

"Gerokgak is historically adapted to semi-arid conditions, but an unbroken dry spell exceeding two full months tests the limits of rural water management," stated the Head of the Buleleng Agriculture Office. "Our field extension officers are working closely with subak leaders to distribute drought-resilient seed stocks and optimize ground-well water pumps. Maintaining rural livestock health is also a priority; we have distributed emergency fodder and mineral supplements to cattle farmers whose customary grazing pastures have completely dried out."

The Buleleng Regional Disaster Management Agency (BPBD Buleleng) has deployed clean water tanker trucks on daily rotational schedules to deliver potable water directly to remote residential hamlets (banjars) facing depleted household shallow wells.

Wildfire surveillance in West Bali National Park and coastal savanna

The extended dry period has elevated wildfire danger across western Buleleng's fragile ecosystems to critical levels.

Gerokgak encompasses substantial protected conservation territory within the eastern boundary of West Bali National Park (Taman Nasional Bali Barat / TNBB), home to the critically endangered Bali Starling (Leucopsar rothschildi).

Park rangers, local military commands (Koramil), and volunteer forest firefighting brigades (Masyarakat Peduli Api / MPA) have intensified joint motorized and foot patrols through vulnerable savanna forest corridors:

• Prohibition on Open Burning: Strict municipal and customary village bans on burning agricultural crop residue, dry leaves, and scrubland vegetation are being vigorously enforced, with pecalang monitoring rural boundaries.
• Firebreak Maintenance: Forestry crews have cleared and maintained five-meter-wide vegetation firebreaks along highway perimeters and boundary lines separating farmland from protected national park deciduous forests.
• Thermal Satellite Monitoring: The TNBB conservation center continuously monitors satellite hotspots (LAPAN/BRIN thermal detection) to identify any subterranean or surface smoke signatures within minutes of ignition.

Contrasting microclimates across the island of Bali

For visiting tourists and outside observers, the extreme aridity in Gerokgak illustrates the dramatic microclimatic diversity that characterizes the island of Bali.

While travelers residing in the lush central highlands of Ubud or the south-central beaches of Seminyak and Sanur frequently experience humid tropical conditions and occasional convective afternoon drizzle, northern Buleleng operates under a distinct semi-arid tropical savanna regime (Köppen Aw classification).

The dry sunny weather presents unique, contrasting opportunities for regional adventure and marine tourism:

• Pristine Coastal Diving at Menjangan Island: Situated directly off the Gerokgak coast, Menjangan Island’s marine reserve currently enjoys optimal underwater conditions, with calm surface seas and water visibility exceeding 30 meters, drawing world-class scuba divers and snorkelers.
• Eco-Resorts and Agro-Tourism in Pejarakan: Eco-resorts nestled among salt pans and mangrove reserves offer peaceful, uncrowded retreats for travelers seeking tranquil wellness and wildlife watching far from southern urban crowds.

Outlook for seasonal monsoon transition

BMKG climatologists project that the delayed arrival of the west monsoon will keep northern Buleleng in prevailing dry conditions until at least late November or early December, when seasonal wind currents finally shift to draw moisture across the Java Sea.

Until steady seasonal rainfall arrives, coordinated municipal water logistics, prudent agricultural water rationing, and vigilant wildfire prevention remain essential to safeguarding the livelihoods, natural ecosystems, and rural communities of North Bali.