Rain in Jakarta at 06:00; Denpasar and Surabaya Clear Today

Jakarta: Rain at 06:00 WIB, Clear Skies in the Afternoon

In Jakarta, rain is forecast at 06:00 WIB on September 20, 2026, with a 90 percent probability and a temperature of 25°C. At 09:00 WIB, clear conditions are forecast with a temperature of 30°C, and at 12:00 WIB, clear conditions are forecast with a temperature of 33°C. Jakarta's daily temperature is forecast to range from 25°C to 33°C.

Jakarta's air quality is forecast to be heavily polluted at 06:00 WIB, moderately polluted at 09:00 WIB, and lightly polluted at 12:00 WIB. Based on the daily category, Jakarta's air quality is heavily polluted. The outdoor activity index is poor, and the heatstroke index (WBGT) is at the alert level.

Denpasar Clear All Day; Mosquito Precautions Advised

Denpasar is forecast to be clear all day on September 20, 2026, with temperatures ranging from 22°C to 32°C and a rain probability of only 10 percent. Denpasar's daily air quality is in the good category.

The driving index in Denpasar is rated very good, while the outdoor activity index is in the fair category, indicating that general conditions still support outdoor activities. Residents are urged to remain alert to mosquitoes and advised to use mosquito repellent lotion, in line with the heatstroke index being at the alert level because the maximum temperature is forecast to reach 32°C.

Surabaya Hot and Clear; Air Quality Improves During the Day

Surabaya is forecast to be clear all day on September 20, 2026, with a maximum temperature of 34°C and a minimum of 25°C, while the rain probability is only 10 percent and relative humidity is around 50 percent.

Surabaya's air quality is forecast to be moderately polluted at 06:00 WIB, while it is forecast to be good from 09:00 WIB through 21:00 WIB. Based on the daily category, Surabaya's air quality is in the moderately polluted category. The outdoor activity index is rated poor and the heatstroke index is at the alert level, although the driving index remains rated very good.