Prediksi Musim Hujan 2026/2027

BMKG forecasts the 2026-2027 rainy season in Indonesia, detailing start times, rainfall patterns, and preparedness advice.

Key Takeaways

The rainy season in Indonesia for 2026-2027 will start gradually and vary by region.
A majority of regions will experience normal rainfall, but some will have above or below normal levels.
The peak rainy season is expected mainly between December 2026 and February 2027.
Most regions will face a delayed start and shorter duration of the rainy season.
Preparedness and continuous monitoring of BMKG updates are essential for adaptation.

What the video covers

BMKG predicts the 2026-2027 rainy season in Indonesia will start gradually with regional variation.
Most regions will begin experiencing rain in October, November, and December 2026.
Specific areas entering the rainy season in October include northern Aceh Besar, West Sumatra, Riau, and parts of Kalimantan and Papua.
In November, additional parts of Sumatra, Java, Kalimantan, Bali, NTB, NTT, Sulawesi, Maluku, and Papua are expected to start the rainy season.
December will see most of Java, Bali, NTB, NTT, Sulawesi, and parts of South Kalimantan and Papua entering the rainy season.
61.8% of regions are predicted to experience a delayed or slower start to the rainy season compared to normal.
69.76% of regions are expected to have normal rainfall accumulation, 18.55% above normal, and 11.69% below normal.
The rainy season peak will mostly occur in December 2026, January 2027, and February 2027 across different regions.
51.9% of regions are predicted to have a shorter rainy season duration than normal.
BMKG advises increased preparedness and monitoring of official channels for updates and early warnings.

Chapters

When is the rainy season expected to start in Indonesia for 2026-2027?

The rainy season is predicted to start gradually across Indonesia, beginning in October, November, and December 2026 depending on the region.

Which regions in Indonesia will experience the earliest onset of the rainy season?

Northern Aceh Besar, parts of West Sumatra, most of Riau, parts of Kalimantan, Sulawesi, North Maluku, West Papua, and Papua are expected to enter the rainy season as early as October 2026.

What is the expected rainfall pattern for the 2026-2027 rainy season?

Approximately 69.76% of regions are forecasted to have normal rainfall accumulation, 18.55% above normal, and 11.69% below normal, with many regions experiencing a delayed start and shorter duration.

Full Transcript — Download SRT & Markdown

Speaker A

Hello BMKG climate friends. After passing through quite a long dry period accompanied by El Nino, signs of a seasonal change are not yet visible in Indonesia's skies. BMKG predicts the start of the 2026-2027 rainy season in various regions of Indonesia will occur

Speaker A

gradually, with different timing across regions. Most parts of Indonesia will begin in October, November, and December 2026. In October 2026, regions predicted to enter the early rainy season include northern Aceh Besar, parts of West Sumatra, most of Riau,

Speaker A

parts of the Riau Islands, parts of Jambi, parts of Bengkulu, parts of South Sumatra, parts of Lampung, parts of West Java, parts of West Kalimantan, parts of Central Kalimantan, parts of East Kalimantan, parts of Central Sulawesi, parts of West Sulawesi, parts

Speaker A

of North Maluku, parts of West Papua, and parts of Papua. In November 2026, regions predicted to enter the early rainy season include parts of Sumatra, parts of Java, parts of Kalimantan, parts of Bali, parts of NTB, a small

Speaker A

part of NTT, parts of Sulawesi, parts of North Maluku, parts of Maluku, northern West Papua, and parts of South Papua. Furthermore, in December 2026, areas predicted to enter the early rainy season include parts of Lampung, most of Java, parts of South Kalimantan,

Speaker A

most of Bali, most of NTB, most of NTT, most of Sulawesi, parts of North Maluku, parts of Maluku, and the southern part of South Papua. An important piece of information is that 61.8% of regions are predicted to experience a delayed or slower start to

Speaker A

the rainy season compared to normal conditions. Most parts of Indonesia, namely 69.76%, are predicted to experience seasonal rainfall accumulation in the normal category, and it is worth noting that 18.55% of regions fall into the above-normal category and 11.69% of regions fall into

Speaker A

the below-normal category. The peak of the 2026-2027 rainy season is generally predicted to occur in December 2026 in 36.94% of regions, January 2027 in 25.68% of regions, and February 2027 in 16.79% of regions. The duration of the rainy season this year is generally predicted

Speaker A

to be shorter than normal in 51.9% of regions. Facing the 2026-2027 rainy season, let's increase our preparedness and adjust our activities to the climate conditions in our respective regions. Keep monitoring BMKG's information and early warnings so we can adapt and take the right steps.

Speaker A

More complete information regarding the rainy season forecast in your region can be accessed through official BMKG channels. Bye bye.

Topics:BMKGIndonesia rainy season2026 rainy season forecastEl Ninoseasonal rainfallclimate predictionweather forecast Indonesiarainy season startrainfall accumulationclimate preparedness

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