Climate averages 1991–2020
Medan weather
in May.
A hot, very wet month: one of the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Medan: daytime highs average 30.2°C and nights cool to about 23.2°C. By daytime temperature it is one of the warmest months of the year.
Expect about 279 mm of rain on roughly 27 days, which makes May a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average May day.
The nearest other city in this atlas is Sunggal (6 km away). In May its highs average 30.3°C, about as warm as Medan, with 266 mm of rain.
Among the 200 cities listed in Indonesia, Medan ranks joint 28th of 200 for the warmest May highs and 190th of 200 for the driest May (rainfall, lowest first). The mean May high of those 200 cities is 29.2°C; Medan is 1.1°C warmer than that mean.
From May to June, average highs stay level at 30.2°C, and monthly rainfall falls from 279 mm to 209 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Sunggal in MayIndonesia · 6 kmHigh 30.3°C · Low 22.8°C · 266 mm rain
- Binjai in MayIndonesia · 20 kmHigh 30.3°C · Low 22.5°C · 266 mm rain
- Belawan in MayIndonesia · 21 kmHigh 30.4°C · Low 23.9°C · 250 mm rain
- Percut in MayIndonesia · 22 kmHigh 30.1°C · Low 24.0°C · 250 mm rain
- Perbaungan in MayIndonesia · 32 kmHigh 30.0°C · Low 24.6°C · 182 mm rain
- Kabanjahe in MayIndonesia · 57 kmHigh 25.6°C · Low 17.9°C · 196 mm rain
- Tebingtinggi in MayIndonesia · 62 kmHigh 30.1°C · Low 24.1°C · 203 mm rain
- Pematangsiantar in MayIndonesia · 82 kmHigh 28.2°C · Low 21.3°C · 265 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.