Tomorrow's Weather, September 13: Extreme Heat in Jakarta, Clear Skies in Denpasar

Extreme Heat Expected in Jakarta on Sunday, September 13

Jakarta is expected to experience extreme heat on Sunday, September 13, 2026, with daily temperatures forecast to range from 26°C to 35°C and humidity around 35%. The heat is expected to peak at 12:00 WIB, when the temperature is forecast to reach 35°C, humidity to fall to 37%, and northerly winds are forecast at 3 m/s. The daily chance of rain is forecast at 10%, with 0 mm of rainfall, while at 12:00 WIB the chance of rain is forecast at 0%.

Jakarta Temperatures from Morning to Noon

Hourly data for Jakarta on Sunday, September 13, 2026, covers three key times. At 06:00 WIB, the temperature is forecast at 26°C with clear conditions, humidity at 76%, a 10% chance of rain, and northerly winds forecast at 1 m/s. At 09:00 WIB, the temperature is forecast at 31°C, humidity at 55%, and the chance of rain at 0%, with northerly winds forecast at 2 m/s. At 12:00 WIB, the temperature is forecast to reach 35°C under extreme heat conditions, humidity is expected to fall to 37%, the chance of rain is forecast at 0%, and northerly winds are forecast at 3 m/s.

Denpasar and Surabaya to Remain Clear with Warm Temperatures

Denpasar is expected to be clear on Sunday, September 13, 2026, with daily temperatures forecast to range from 23°C to 32°C, humidity around 69%, forecast rainfall of 0 mm, and a 10% chance of rain. Surabaya is also expected to be clear on the same day, with temperatures forecast to range from 24°C to 34°C, humidity around 39%, forecast rainfall of 0 mm, and a 10% chance of rain. Because a 10% chance of rain is still listed for both cities, a small umbrella may be carried as an optional precaution even though forecast rainfall remains at 0 mm.