September 15 Weather: Clear Skies in Jakarta, Denpasar and Surabaya

Clear Skies in Jakarta, Heavily Polluted Morning Air

Jakarta is forecast to be clear on Monday, September 15, 2026, with a low of 25 degrees Celsius and a high of 34 degrees Celsius. The driving index is rated very good based on today's weather conditions.

Air quality in Jakarta at 06:00 WIB is forecast to be in the heavily polluted category, while at 09:00 WIB it is forecast to be moderately polluted and at 12:00 WIB lightly polluted. Residents who are outdoors at 06:00 WIB are advised to wear masks.

Clear Skies in Denpasar, Active Mosquitoes and Heat Caution

Denpasar is forecast to be clear on Monday, September 15, 2026, with a low of 23 degrees Celsius and a high of 31 degrees Celsius, and daily humidity of around 69 percent. Daily air quality is in the good category.

Mosquito activity is forecast to be high, so the use of mosquito repellent lotion or other protection is recommended when outdoors. The heatstroke index (WBGT) is at a caution status, while the outdoor activity index is fairly supportive and the driving index is rated very good.

Clear Skies in Surabaya, Variable Morning Air Quality

Surabaya is forecast to be clear on Monday, September 15, 2026, with a high of 34 degrees Celsius and a low of 23 degrees Celsius. The driving index is rated very good based on today's weather conditions.

Air quality at 06:00 WIB is forecast to be moderately polluted, while at 09:00 WIB it is forecast to be in the good category. The outdoor activity index is less supportive, and the heatstroke index (WBGT) is at a caution level.