Medan weather in September 2026

Expect daytime maximum temperatures of 90°F in Medan, Indonesia in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 10.6 inches of rainfall in the month.

  • 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 91°F in Medan in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Medan in September?

There are normally 9 hours of bright sunshine each day in Medan in September - that's 71% of daylight hours.

How warm is the sea around Medan in September?

The average sea temperature around Medan in September is 84°F.

Does it rain in Medan in September?

There are usually 8 days with some rain in Medan in September and the average monthly rainfall is 3.7 inches.

Medan September sunrise & sunset times

Browse the sunrise and sunset times for Medan in September 2026. Select a month to view Medan sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:20 18:31
Tuesday, 15th September 2026 06:17 18:25
Wednesday, 30th September 2026 06:13 18:18

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