Tomorrow's Weather, Thursday, September 17, 2026: Jakarta Sunny and Hot

Jakarta Forecast to Be Sunny, with a Peak of 33°C During the Day

Tomorrow, Thursday, September 17, 2026, Jakarta's sky is forecast to be clear, with daily temperatures expected to range from 26°C to 33°C. At 6 a.m. WIB, the temperature is forecast to be 26°C, then rise to 30°C at 9 a.m. WIB and reach 33°C at 12 noon WIB. Toward the evening, the temperature is forecast to be 32°C at 3 p.m. WIB, then 29°C at 6 p.m. WIB and 28°C at 9 p.m. WIB. The daily probability of rain is forecast to be low, at around 10%, with daily rainfall projected at 0 mm.

Denpasar and Surabaya Also Forecast to Be Sunny and Hot

In Denpasar, tomorrow's weather is forecast to be sunny, with daily temperatures expected to range from 23°C to 32°C and a daily probability of rain of 10%. At 12 noon WITA, the temperature is forecast to be 32°C, then fall to 26°C at 6 p.m. WITA. In Surabaya, daily temperatures are expected to range from 24°C to 34°C, with the temperature forecast to reach 34°C at 12 noon WIB and 29°C at 6 p.m. WIB. The daily probability of rain in Surabaya is also forecast to be 10%, with daily rainfall projected at 0 mm.

High Temperatures in Three Cities; Sun Protection Recommended

Humidity in Jakarta tomorrow is forecast to range from 49% during the day to 71% at 6 a.m. WIB, while daytime humidity in Surabaya is forecast to be 48% at 12 noon WIB. With sunny weather and high temperatures in Jakarta, Denpasar, and Surabaya, people who are outdoors during the day are advised to prepare sun protection. Carrying an umbrella remains optional as a precaution, given that the daily probability of rain in all three cities is forecast to be around 10%.