Climate averages 1991–2020
Medan weather
in August.
A hot, very wet month: the 6th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Medan: daytime highs average 29.9°C and nights cool to about 22.6°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 249 mm of rain on roughly 26 days, which makes August a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average August day.
The nearest other city in this atlas is Sunggal (6 km away). In August its highs average 30.1°C, about as warm as Medan, with 213 mm of rain.
Among the 200 cities listed in Indonesia, Medan ranks joint 94th of 200 for the warmest August highs and 192nd of 200 for the driest August (rainfall, lowest first). The mean August high of those 200 cities is 29.5°C; Medan is 0.4°C warmer than that mean.
From August to September, average highs fall by 0.4°C to 29.5°C, and monthly rainfall rises from 249 mm to 353 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Medan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.7°C22.1°C | 22.1°C | 203 | 24.7 | 11.912 h |
| February | 29.3°C22.0°C | 22.0°C | 147 | 20.6 | 12.012 h |
| March | 30.0°C22.5°C | 22.5°C | 190 | 23.1 | 12.112 h |
| April | 30.1°C22.9°C | 22.9°C | 243 | 26.0 | 12.212 h |
| May | 30.2°C23.2°C | 23.2°C | 279 | 27.1 | 12.312 h |
| June | 30.2°C22.9°C | 22.9°C | 209 | 22.8 | 12.312 h |
| July | 30.0°C22.6°C | 22.6°C | 217 | 24.0 | 12.312 h |
| August, selected | 29.9°C22.6°C | 22.6°C | 249 | 26.1 | 12.212 h |
| September | 29.5°C22.5°C | 22.5°C | 353 | 28.1 | 12.112 h |
| October | 29.0°C22.5°C | 22.5°C | 393 | 29.5 | 12.012 h |
| November | 28.5°C22.5°C | 22.5°C | 366 | 28.7 | 12.012 h |
| December | 28.2°C22.4°C | 22.4°C | 302 | 27.9 | 11.912 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Sunggal in AugustIndonesia · 6 kmHigh 30.1°C · Low 22.3°C · 213 mm rain
- Binjai in AugustIndonesia · 20 kmHigh 30.4°C · Low 22.0°C · 213 mm rain
- Belawan in AugustIndonesia · 21 kmHigh 30.1°C · Low 23.3°C · 252 mm rain
- Percut in AugustIndonesia · 22 kmHigh 29.8°C · Low 23.4°C · 252 mm rain
- Perbaungan in AugustIndonesia · 32 kmHigh 29.8°C · Low 24.1°C · 147 mm rain
- Kabanjahe in AugustIndonesia · 57 kmHigh 25.1°C · Low 17.3°C · 218 mm rain
- Tebingtinggi in AugustIndonesia · 62 kmHigh 29.9°C · Low 23.6°C · 163 mm rain
- Pematangsiantar in AugustIndonesia · 82 kmHigh 27.9°C · Low 20.7°C · 274 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Medan) is explained once on the Medan year overview and on the Sources, method and limits page.