Bali's Rainy Season to Start Late November, BMKG Warns of Intense Downpours
BMKG's Bali Climatology Station forecasts the rainy season will begin in late November 2026 and peak around February 2027. Because the season is expected to be shorter than normal, rainfall intensity could be higher, raising the risk of heavy downpours.
Indonesia's Meteorology, Climatology, and Geophysics Agency (BMKG), through its Denpasar-based Bali Climatology Station, has released a forecast for Bali's 2026–2027 rainy season. Forecaster Trayi Budi Samantu said the season is expected to last an average of 10–15 dasarian periods (one dasarian equals 10 days) across most western, northern, and eastern coastal areas, 10–12 periods in the eastern region including Nusa Penida, and a longer 16–18 periods in central Bali, where the season could extend into April 2026.
He attributed the shorter-than-normal rainy season to El Nino, which is prolonging Indonesia's dry season. As a result, the onset of rains is expected to be delayed across all 20 seasonal zones (ZOM) in Bali, with 70 percent delayed by three dasarian periods or more, and some by six to seven. Rain is forecast to begin in late November 2026 in 15 percent of zones (Banjar, Sukasada, Baturiti, Pupuan, Petang, and Payangan districts), while the remaining 85 percent will see onset in December. The peak is expected around February 2026 in 16 zones.
BMKG warned that a shorter rainy season tends to concentrate rainfall, raising the risk of sudden, high-intensity local downpours. For tourists and residents, this could mean flooded roads, reduced visibility, and potential flight delays during the wet months ahead.
Things to Consider
When planning travel from November through the peak in February, build in buffer time for possible weather-related delays. Check BMKG updates or weather apps regularly during your stay for localized heavy rain and flood warnings, and consider carrying a waterproof bag and spare footwear in case of flooded low-lying roads. If flying, allow extra time in your schedule given the possibility of weather-related flight delays or cancellations.
Source: TEMPO.CO