When Does the Rainy Season End This Year?

YOGYAKARTA - A number of regions in Indonesia have now entered the rainy season. In fact, the season has started since November 2025. Regarding when the rainy season ends, the Meteorology, Climatology, and Geophysics Agency (BMKG) analyzes the development of the season.

Launching the results of the 2025/2026 Rainfall Prediction Update in Indonesia, the peak of the rainy season is predicted to occur in January to February 2026. This means that currently most areas in Indonesia have entered the peak of the rainy season.

In addition, the duration of the rainy season in Indonesia is predicted to change in various regions. In general, the rainy season is expected to last shorter in most areas, especially in Sumatra, Java, and Sulawesi. This condition shows a shift in rainfall patterns compared to normal conditions in previous years.

However, not all regions experience a shortening of the rainy season. In Bali, for example, there are several Seasonal Zones (ZOM) which were originally estimated to experience the rainy season for 10 to 12 dasarian (4 months). However, in the update of the prediction, the duration is estimated to be 16 to 18 dasarian or about 5-6 months. This indicates that in certain areas, the rainy season is actually extended.

In addition, there are also several ZOMs that experience a rainy season almost all year round. These regions were previously predicted to experience a rainy season for 22 to 24 days or about 7-8 months, which reflects relatively consistent rainfall over the long term.

In the Update of the 2025/2026 Rainy Season Forecast in Indonesia, BMKG also predicts when the dry season this year begins. However, based on the latest Early Drought Prediction Map, there are updates to the drought time in a number of regions in Indonesia. This update is compiled based on the latest climate conditions and released in November 2025.

In general, changes do not occur widely, but some areas experience a shift that is quite noticeable.

In the Sumatra region, the early change in the dry season is visible in Riau and a small part of North Sumatra. The region, which was previously predicted to enter the dry season in January, is now expected to experience it only in March to April.

Meanwhile, some of North Sumatra experienced early drought, namely around February. At some points, this shift is considered quite significant compared to previous predictions.

In Maluku, there is an area that has experienced a unique change. Initially, the area was estimated to experience a dry season from March to July. However, after the update was made, this area was no longer predicted to have a clear dry season. This condition shows that rain is still potentially occurring continuously.

Overall, this map confirms that seasonal patterns can change following climate dynamics. Therefore, the latest information is very important for planning in various sectors, especially agriculture and water resources management.

That's the information regarding when the rainy season ends. Visit VOI.id for other interesting information.