Rain Expected Across Jakarta During Chinese New Year Celebrations
Jakarta residents should prepare for light to moderate rainfall during Chinese New Year celebrations on Tuesday, February 17, 2026, according to the Indonesia’s Meteorology, Climatology, and Geophysics Agency (BMKG). The agency issued its latest forecast at 07:00 PM Western Indonesia Time (WIB) on Monday, February 16, 2026.
Rainfall Forecast by Region and Time
From morning to midday, rain is anticipated in parts of North, West, Central, and East Jakarta. Similar conditions are expected in Bekasi Regency, Tangerang Regency and City, South Tangerang, Depok, and the entire Bogor area.
Later in the day, from late afternoon until 07:00 PM WIB, the rainfall is forecast to extend to South, East, and West Jakarta, as well as South Tangerang, Tangerang City and Regency, Bogor, Depok, and Bekasi City.
Temperature and Wind Conditions
The BMKG estimates temperatures across the Greater Jakarta area (Jabodetabek) will range between 24 and 30 degrees Celsius. Bogor is expected to be cooler, with temperatures between 20 and 28 degrees Celsius. Winds will blow from the southwest to northwest at speeds of 10 to 40 kilometers per hour, with humidity levels between 70 to 98 percent.
Strengthening Monsoon and Atmospheric Waves
The potential for increased rainfall is linked to a strengthening Asian monsoon, bringing westerly winds that support the formation of convective clouds over western and southern Indonesia. The Madden-Julian Oscillation (MJO), currently active over the Indian Ocean, as well as Kelvin and Rossby atmospheric waves, are too contributing to wind convergence, particularly along Java’s southern coast and the Nusa Tenggara region. BMKG urges vigilance amid the potential for extreme weather between February 15 and 21, 2026.
Climatological Factors Behind Rainy Chinese New Year
According to BMKG weather practitioner Wahyu Argo Wahyu, the timing of Chinese New Year often coincides with Indonesia’s rainy season. BMKG attributes this to the influence of the Asian Monsoon, which brings wet air masses to maritime Indonesia, and is further reinforced by cold surges, Kelvin and Rossby waves, and convergence. Heavy rain potential is highest in North Jakarta, West Jakarta, South Jakarta, and the Thousand Islands, with potential rainfall intensity ranging from 20 to 100 millimeters per day.