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Bogor City, located in West Java Province, Indonesia, is widely known as the “Rain City.” In 2024, the city recorded an annual precipitation of 4,812 mm. This figure is approximately 1.6 times greater than Okinawa Prefecture, Japan’s rainiest region, and ranks sixth among Indonesian cities.

While Bogor’s abundant rainfall contributes to its rich natural environment, it also brings to light challenges such as heavy rainstorms and flooding.

Introduction

Bogor, with its abundant rainfall throughout the year, is a popular tourist destination known for its lush natural surroundings and cool climate.

However, the rainy season brings annual flooding, which remains a persistent concern for local residents. This article presents data and visual materials on Bogor’s precipitation, the impact of heavy rains and flooding, and corresponding mitigation measures.

Bogor, the Rain City, in Figures

City Ranking by Annual Precipitation: Bogor in 6th Place

Prepared by PT. TRICRUISE MARKETING INDONESIA, based on GoodStats Instagram post “Bukan Bogor, Inilah Wilayah dengan Curah Hujan Tertinggi di Indonesia Tahun 2024”

Bogor, famously known as the “Rain City,” is recognized for its high level of rainfall year-round. According to Statistics Indonesia (BPS), Bogor City recorded an annual precipitation of 4,812 mm in 2024, ranking sixth among Indonesian cities. The average daily sunshine duration is 5.4 hours.

According to this data, the top-ranking region is Mimika Regency in Central Papua Province, with 6,610.5 mm of rainfall, followed by Padang Pariaman Regency in West Sumatra Province (5,745 mm), and North Luwu Regency in South Sulawesi Province (5,477 mm).

How much is 5,000 mm of annual rainfall?

For comparison, in Japan’s ranking of prefectural annual precipitation, Okinawa Prefecture—Japan’s rainiest region in 2022—recorded 2,997 mm. This highlights the significant amount of rainfall in Indonesia’s top-ranked cities.

Annual Precipitation by Indonesian City (2024)

• Mimika Regency (Central Papua Province): 6,611 mm
• Padang Pariaman Regency (West Sumatra Province): 5,745 mm
• North Luwu Regency (South Sulawesi Province): 5,477 mm
• Kapuas Hulu Regency (West Kalimantan Province): 4,982 mm
• Boven Digoel Regency (South Papua Province): 4,819 mm
• Bogor City (West Java Province): 4,812 mm
• Central Tapanuli Regency (North Sumatra Province): 4,760 mm

References:

• GoodStats Instagram post “Bukan Bogor, Inilah Wilayah dengan Curah Hujan Tertinggi di Indonesia Tahun 2024”
• e-Stat “Statistical Observations of Prefectures 2024 / Social and Demographic Indicators”

Flood Countermeasures in Bogor

In March 2025, following severe damage caused by heavy rainfall and flooding in West Java Province—particularly in Bogor Regency and Bekasi Regency—a joint countermeasure meeting was convened by the Ministry of Public Works and Public Housing, West Java Provincial Government, and the governors and mayors of affected areas. Moving forward, both national and local governments will implement three specific countermeasures, particularly in regions with a high risk of flooding. These measures are scheduled to commence in earnest starting from June.

Redevelopment of Riverbanks

Authorities have indicated that residents living on or near riverbanks may be asked to relocate as part of flood control projects. It was emphasized that appropriate compensation will be provided to residents and property owners with valid documentation, while a humanitarian approach will be taken to facilitate relocation for those without such documentation.

In Indonesia, it is not uncommon for impoverished communities—unable to legally purchase land or property due to regulatory gaps in earlier periods—to have constructed homes in areas such as riverbanks, which are unsuitable for residential development. These informal settlements have been identified as a contributing factor to flooding, prompting countermeasures in various regions.

Restoration of Wetlands and Ponds

It was reported that, due to the heavy rains in March 2025, over 30 wetlands and ponds known as situ in Bogor Regency and Bekasi Regency were lost.

This project aims to restore these wetlands and ponds to their original state, helping to sustain local ecosystems while mitigating the risks of natural disasters.

Construction of Irrigation Facilities and Dams

Local governments will advance projects to construct irrigation facilities and dams that span across regencies and municipalities. After selecting suitable sites in April, land acquisition will proceed in May, with construction scheduled to begin in June.

Reference:
metro bogor “Ini 3 Poin Kebijakan Nusron Wahid Tangani Banjir di Bogor dan Bekasi”

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Visual Perspectives on the Rain City of Bogor

Flooding in Bogor

Watch the video

This video shows the situation in Cijayanti District, Bogor Regency, which suffered flood damage caused by heavy rains in March 2025.

A local resident, believed to be an adult male, can be seen wading through knee-deep water. Numerous homes were inundated, with widespread damage including landslides, road closures, and collapsed bridges.

Reforestation Efforts for Disaster Mitigation

Watch the video

This video features a tree-planting activity conducted in Bogor. The event took place in March 2025 as part of West Java Province’s greening project.

The individual in white clothing seen participating is West Java Governor Dedi Mulyadi. The provincial government is promoting reforestation in mountainous areas with the goal of mitigating damage from heavy rains and flooding.

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The Future of Disaster Countermeasures in Bogor, the Rain City

This article has introduced the precipitation levels, flood damage, and countermeasures in Bogor.

Known as the Rain City, Bogor is a popular retreat for residents of the Greater Jakarta area, offering numerous tourist attractions, accommodations, and dining establishments.

At the same time, it is also true that certain areas continue to suffer from annual flooding.

Flooding in Bogor is not a localized issue. The Ciliwung River, which frequently overflows in Jakarta, originates in the mountains of Bogor, more than 80 km south of central Jakarta. Therefore, heavy rainfall in Bogor is one of the contributing factors to flooding in Jakarta as well.

Will the Indonesian government and local authorities be able to implement effective, cross-jurisdictional measures to mitigate the recurring flood damage year after year?