Medan weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Poor
Best time to visit: October – February
What is the weather like in Medan in September?
In September, Medan is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sun is scarce, with only about 4 hours a day. It is the rainy season: rain falls on about 28 days, totalling 315 mm. On about 16 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Medan.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 33 | 35 | 37 |
| Day | 30° | 30° | 29° |
| Night | 22° | 22° | 22° |
| Sun | 4 h | 4 h | 3 h |
| Rain days | 27 | 28 | 29 |
More details for September
- Daylight
- 12 h 8 min06:17 – 18:25
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 91 %on averageAll months
- Hot days
- 16 days30 °C or moreAll months
- Time zone
- UTC+7Asia/Jakarta
How the score comes together
- Temperatureweight 50 %64 %
- Sunshineweight 20 %13 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Medan in September: quick answers
Is Medan hot in September?
Yes. In September, Medan is hot: daytime highs average 30 °C and nights stay around 22 °C. On about 16 days the thermometer climbs to 30 °C or more.
Does it rain much in Medan in September?
It rains often – on about 28 days, adding up to 315 mm.
Medan month by month
The whole year in MedanAll destinations: IndonesiaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences