Medan weather in September 2025

Expect 90°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Medan in September. Check more long-term weather averages for Medan in September before you book your next holiday to Indonesia in 2025/2026.

  • 90°F maximum daytime temperature in September in Medan90
    90°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in September in Medan14
    14 days with some rainfall
  • 72°F minimum night-time temperature in September in Medan72
    72°F min night temperature
  • 12 hours of daylight per day in September in Medan12
    12 hours of daylight per day
  • Very high heat & humidity in September in MedanVH
    Very High heat & humidity
  • 10.6 inches monthly rainfall in September in Medan10.6
    10.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Medan11
    11+ (Extreme) UV index

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The September weather guide for Indonesia (Medan) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Medan in September?

Daytime temperatures usually reach 90°F in Medan in September with very high heat and humidity, falling to 72°F at night.

How sunny is it in Medan in September?

There are normally 5 hours of bright sunshine each day in Medan in September - that's 45% of daylight hours.

Does it rain in Medan in September?

There are usually 14 days with some rain in Medan in September and the average monthly rainfall is 10.6 inches.

Medan September sunrise & sunset times

Browse the sunrise and sunset times for Medan in September 2025. Select a month to view Medan sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:20 18:31
Monday, 15th September 2025 06:16 18:24
Tuesday, 30th September 2025 06:13 18:18

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